WO2001013423A1 - Semiconductor production device ceramic plate - Google Patents
Semiconductor production device ceramic plate Download PDFInfo
- Publication number
- WO2001013423A1 WO2001013423A1 PCT/JP1999/007368 JP9907368W WO0113423A1 WO 2001013423 A1 WO2001013423 A1 WO 2001013423A1 JP 9907368 W JP9907368 W JP 9907368W WO 0113423 A1 WO0113423 A1 WO 0113423A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic
- ceramic substrate
- wafer
- ceramic plate
- semiconductor manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
- H10P72/722—Details of electrostatic chucks
Definitions
- the present invention relates to a ceramic plate for a semiconductor manufacturing apparatus mainly used for a semiconductor manufacturing apparatus such as an electrostatic chuck or a wafer prober, and more particularly to a semiconductor plate capable of mounting a large-sized semiconductor wafer and preventing the silicon wafer from being damaged.
- a semiconductor manufacturing apparatus such as an electrostatic chuck or a wafer prober
- Semiconductors are extremely important products required in various industries. Semiconductor chips are manufactured by, for example, slicing a silicon single crystal to a predetermined thickness to produce a silicon wafer, and then applying various types of silicon wafers to the silicon wafer. It is manufactured by forming circuits and the like.
- a semiconductor manufacturing apparatus using a ceramic substrate as a base such as an electrostatic chuck, a hot plate, a wafer prober, and a susceptor, is actively used.
- Japanese Patent Publication No. 258729/89 and Japanese Patent Publication No. 10-722690 disclose ceramic substrates used for these applications. Have been.
- Each of the ceramic substrates disclosed in the above publications has a diameter of about 6 inches (150 mm) or a thickness of 8 mm or more.
- the present inventors have conducted intensive studies in view of the above problems, and as a result, as described above, the silicon wafer is damaged, the temperature of the silicon wafer becomes uneven due to insufficient chucking force, and the surface of the ceramic substrate is kept constant from the surface.
- the problem that the temperature of the silicon wafer becomes non-uniform when the silicon wafer is heated while holding it at a distance of 10 mm is due to the presence of undulations on the surface of the ceramic substrate. I stopped it.
- they have found that the above problem can be solved by eliminating the waviness of the surface and manufacturing a ceramic substrate whose surface falls within a predetermined flatness range. It was completed.
- the first ceramic plate for a semiconductor manufacturing apparatus of the present invention is a semiconductor manufacturing apparatus for mounting a semiconductor wafer on a surface of a ceramic substrate or holding a semiconductor wafer at a predetermined distance from the surface of the ceramic substrate.
- the flatness of the ceramic substrate to 1 to 50 ⁇ m with respect to the It is characterized by having done.
- the second ceramic plate for a semiconductor manufacturing device of the present invention is a ceramic plate for a semiconductor manufacturing device in which a conductor layer is provided inside or on the surface of a ceramic substrate, and measures the flatness of the surface of the ceramic substrate.
- the range is 1 to 50 / m for a length of 1 O mm between outer peripheral ends.
- the flatness is desirably 1 to 20 / m.
- Flatness and surface roughness are completely different concepts. Flatness is a macroscopic undulation of the surface, whereas surface roughness refers to microscopic irregularities formed on the surface.
- the flatness according to the present invention is defined as the difference between the highest position and the lowest position in the measurement range (see FIGS. 4 and 5).
- the length between the outer peripheral ends of the ceramic substrate refers to the length between the ends passing through the center of the ceramic substrate. That is, when the ceramic substrate is disc-shaped, the length between the outer peripheral ends indicates the diameter, and when the ceramic substrate is elliptical, the length of the long axis and the length of the short axis are indicated.
- a measurement range with a length between outer peripheral ends of 10 mm is set in two directions of the X-axis and the Y-axis, and the larger value is defined as flatness.
- the ceramic substrate When measuring the flatness according to the present invention, it is necessary to measure the flatness of a portion that is not a problem when placing the silicon wafer, that is, a portion of the ceramic substrate except for 5 mm from the outer peripheral edge.
- the length between the outer peripheral ends is 10 mm.
- the ceramic substrate In these ceramic plates for semiconductor manufacturing equipment, it is desirable that the ceramic substrate has a disk shape and has a diameter exceeding 150 mm.
- the diameter of the ceramic substrate of the present invention is preferably 200 mm or more, and more preferably 300 mm or more. This is because when the diameter of the ceramic substrate exceeds 200 mm, silicon wafer damage and uneven wafer temperature are remarkable.
- the ceramic substrate is preferably made of a nitride ceramic, and more preferably made of aluminum nitride, silicon nitride, or boron nitride.
- the ceramic substrate preferably contains aluminum nitride in an amount exceeding 50% by weight.
- the conductor layer provided inside the ceramic substrate has at least one conductive layer at a position eccentric in the direction of the center of the ceramic substrate or the surface opposite to the surface on which the semiconductor wafer is placed or held. Preferably, it is formed.
- the conductor layer provided on the surface of the ceramic substrate is formed on the surface of the ceramic substrate opposite to the surface on which the semiconductor wafer is placed or held.
- the first and second ceramic plates for a semiconductor manufacturing apparatus are characterized in that: It is preferable that a conductor layer is formed on the surface of the mix substrate, a semiconductor wafer is placed on the conductor layer, and the ceramic substrate functions as a wafer prober. Also, at least one conductive layer provided inside the ceramic substrate is formed at a position eccentric from the center of the ceramic substrate toward the surface on which the semiconductor wafer is placed or held. Is desirable. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a bottom view schematically showing one embodiment of a ceramic heater for a ceramic plate for a semiconductor manufacturing apparatus according to the present invention.
- FIG. 2 is a partially enlarged cross-sectional view showing a part of the ceramic plate for a semiconductor manufacturing apparatus shown in FIG.
- 3 (a) to 3 (e) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus in Example 1.
- FIG. 3 (a) to 3 (e) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus in Example 1.
- FIG. 4 is a graph showing the flatness of the surface of the ceramic plate for a semiconductor manufacturing device obtained in Example 1.
- FIG. 5 is a graph showing the flatness of the surface of the ceramic plate for a semiconductor manufacturing device obtained in Example 2.
- FIG. 6 (a) to 6 (d) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus in Example 3.
- FIG. 6 (a) to 6 (d) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus in Example 3.
- FIG. 6 (a) to 6 (d) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus in Example 3.
- 7 (e) to 7 (g) are cross-sectional views schematically showing steps of manufacturing a ceramic plate for a semiconductor manufacturing apparatus according to the third embodiment.
- FIG. 8 is a cross-sectional view schematically showing a state where the ceramic plate for a semiconductor manufacturing apparatus obtained in Example 3 is placed on a support. Explanation of reference numerals
- a first ceramic plate for a semiconductor manufacturing device is a ceramic plate for a semiconductor manufacturing device, which comprises mounting a semiconductor wafer on a surface of a ceramic substrate or holding a semiconductor wafer at a predetermined distance from the surface of the ceramic substrate.
- the flatness of the surface of the ceramic substrate on which the semiconductor wafer is mounted or held (hereinafter also referred to as the wafer mounting and holding surface) is measured with respect to the measurement range and the outer peripheral edge length of 10 mm. 1 to 50 a.
- the second ceramic plate for a semiconductor manufacturing apparatus of the present invention includes a ceramic substrate.
- the first and second ceramic plates for a semiconductor manufacturing apparatus of the present invention both have the flatness in the above range, when a hot plate or an electrostatic chuck having such a ceramic substrate as a constituent member is manufactured, The silicon wafer can be heated to a uniform temperature as a whole, thereby preventing the silicon wafer from being damaged by thermal shock, and sufficiently adsorbing and fixing the silicon wafer. can do.
- the wafer is held with support pins or the like, and 50 to
- the width of the space can be made substantially constant, so that the temperature of the wafer can be made non-uniform.
- the first ceramic plate for a semiconductor manufacturing device of the present invention is different from the second ceramic plate for a semiconductor manufacturing device in that a conductor layer is not specified. It is configured similarly. Accordingly, in the following, both the first and second ceramic plates for semiconductor manufacturing equipment will be described, and unless otherwise required, they will be simply referred to as ceramic plates for semiconductor manufacturing equipment.
- the method of using the ceramic substrate of the present invention is not limited to performing various operations (such as forming a circuit) while mounting or holding a silicon wafer.
- the ceramic plate for a semiconductor manufacturing apparatus of the present invention is not particularly limited as long as it is used for a semiconductor manufacturing apparatus. Specific examples include an electrostatic chuck, a vacuum probe, a susceptor, and a hot plate (ceramic plate). Heater). It should be noted that the semiconductor manufacturing apparatus in the present invention is intended to include equipment used in an inspection stage.
- this ceramic plate for semiconductor manufacturing equipment is used as a ceramic heater, if the flatness of the wafer mounting / holding surface exceeds 50 / zm for 10 mm between the outer peripheral ends of the The wafer does not heat up when it is placed on the substrate or heated at a certain distance from the surface. This is because in a configuration in which a wafer is placed on a ceramic substrate, even if an attempt is made to heat the wafer to 200 ° C or more, the wafer comes into point or line contact with the ceramic substrate and cannot be heated. Even if it is held at a certain distance from the surface of the ceramic substrate and is heated by heating, the distance between the surface of the ceramic substrate and the wafer is too large, and the wafer comes into contact with the ceramic substrate. Cannot heat.
- the mounted silicon wafer and the wafer mounting A gap may be formed between the silicon wafer and the holding surface, and a large temperature distribution may be generated on the silicon wafer. Also, even if the wafer is supported by support pins and held at a certain distance from the surface of the ceramic substrate, and heating is performed without contact, the variation in the distance between the surface of the ceramic substrate and the wafer is too large. Again, temperature distributions can occur on silicon wafers.
- this ceramic plate for semiconductor manufacturing equipment is used as an electrostatic chuck, if the flatness exceeds 50 m, when the silicon wafer is pressed against the ceramic substrate by suction, the silicon wafer will be uneven on the ceramic substrate. The silicon wafer may be broken due to deformation along the surface. On the other hand, if the flatness is less than, the silicon wafer and the wafer mounting / holding surface of the ceramic substrate are completely adhered to each other to be in a vacuum state, and the silicon wafer is not peeled off due to atmospheric pressure. Although the electrostatic chuck is used in a vacuum, it must be returned to the atmospheric pressure once when it is transported, which causes a problem that the silicon wafer cannot be peeled off.
- this ceramic plate for semiconductor manufacturing equipment (hereinafter simply referred to as a ceramic plate) is used as a wafer prober, if the flatness exceeds 50 m, a gap is formed between the placed silicon wafer and the surface of the ceramic substrate. When the tester pins are pressed into the area where the gap is formed, the silicon wafer becomes uneven on the ceramic substrate. Deformed along the way.
- the thickness variation of the chuck top conductor layer itself is about 1 m, so that the flatness of the ceramic substrate itself is less than 1 // m. Makes no economic sense.
- the flatness is desirably l to 20 wm. This is because when the ceramic plate of the present invention is used as a ceramic heater, a large temperature distribution does not occur on the silicon wafer, and when the ceramic plate is used as an electrostatic chuck, the silicon wafer becomes static. The variation in the distance between the electrode and the electrode of the electric chuck is reduced, sufficient chucking force is obtained, the silicon wafer can be easily peeled off from the ceramic substrate after use, and when the above ceramic plate is used as a wafer prober. This is because the degree of deformation of the silicon wafer is small and the occurrence of breakage can be almost completely suppressed.
- the wafer prober is a device for conducting a continuity test by pressing a test pin against a silicon wafer placed on the wafer prober.
- the shape of the nitride ceramic substrate is not particularly limited, and may be an elliptical shape, but a disk shape is preferable.
- the diameter thereof is preferably more than 150 mm, more preferably 200 mm or more, and further preferably 300 mm or more. This is because semiconductor wafers with a diameter of 8 inches (200 mm) or more are the mainstream, and next-generation semiconductor wafers have a diameter of 12 inches (300 mm) or more. Is the mainstream.
- the diameter of the ceramic substrate is less than 200 mm, the diameter of the wafer becomes smaller and the area becomes smaller, so that the temperature is easily made uniform. Therefore, the chuck force does not decrease, and the problem as in the present invention does not occur in the first place.
- the present invention has a particularly large effect when the diameter of the ceramic substrate is 200 mm or more.
- the thickness of the ceramic substrate is desirably 50 mm or less. This is because it is difficult to warp at high temperatures. More preferably, it is less than 8 mm. This is the thickness of the ceramic substrate If the thickness is 8 mm or more, the heat capacity of the ceramic substrate becomes large, and if the temperature control means is provided for heating and cooling, the temperature followability may be reduced.
- the thickness of the ceramic substrate is 5 mm or less. If it exceeds 5 mm, the heat capacity increases, and the temperature controllability and the temperature uniformity of the wafer mounting / holding surface may decrease.
- a ceramic having a Young's modulus of at least 280 GPa in a temperature range from room temperature to 800 ° C Such ceramics are not particularly limited, and include, for example, nitride ceramics and the like. If the Young's modulus is less than 28 OGPa, the amount of warpage at a high temperature is too large, and it is difficult to reduce the amount of warpage even if a conductor layer is provided as a reinforcing member.
- nitride ceramic examples include aluminum nitride, silicon nitride, boron nitride, and the like. Of these, aluminum nitride is preferable, and an amount exceeding 50% by weight is composed of aluminum nitride. A composition having the following composition is most preferable. Other ceramics used in this case include, for example, alumina and sialon.
- the Young's modulus of the ceramic substrate can be adjusted by mixing or laminating two or more types of ceramics.
- oxides of various metals such as alkali metals, alkaline earth metals, and rare earth metals, and carbon can be used. It can be controlled by adding.
- the alkali metal or alkaline earth metal Li, Na, Ca, Rb and the like are desirable, and as the rare earth metal, Y is desirable.
- the carbon either amorphous or crystalline carbon can be used. Further, the content of carbon is desirably 200 to 500 ppm. This is because such a content makes it possible to blacken the ceramic plate.
- the porosity is desirably 0% or 5% or less. If the above porosity is 5% or less, the pores become independent pores and have excellent insulation resistance.They do not warp even at a temperature of 200 ° C or more, and can maintain the flatness at room temperature even at a high temperature. It is.
- the maximum pore diameter of the pores present in the ceramic substrate is desirably 0 or 50 m or less. If it is 0 or 50 or less, the temperature is 200 ° C or more However, it does not warp and the flatness at room temperature can be maintained even at high temperatures.
- the porosity was measured by the Archimedes method. The maximum porosity was determined by preparing five samples, photographing 10 points of each sample with an electron microscope, and measuring the porosity of the largest porosity in each shot. The average value of (50) was defined as the maximum pore diameter.
- the conductor layer is preferably made of metal or conductive ceramic. It is desirable that at least one layer is formed at a position eccentric to the surface opposite to the surface, or that it is formed on the surface opposite to the wafer mounting / holding surface.
- the conductor layer is a chuck top electrode of a wafer prober
- the conductor layer is formed on the mounting / holding surface side of the semiconductor wafer and on the surface of the ceramic substrate.
- the semiconductor wafer is placed on this conductor layer.
- a conductor layer functioning as a guard electrode and a ground electrode may be provided inside the ceramic substrate.
- the conductive layer is an electrode (electrostatic electrode) of an electrostatic chuck
- the conductive layer is formed inside the ceramic substrate on the side close to the mounting / holding surface of the semiconductor wafer.
- a conductor layer as a reinforcing body is provided at the extending portion to prevent the warp, thereby damaging the silicon wafer.
- Examples of the shape of the conductor layer include a planar shape, a shape obtained by dividing the planar shape into several parts, a spiral shape, a concentric shape, and a lattice shape.
- the thickness of the conductor layer is desirably about 1 to 50. If the thickness is less than l ⁇ m, there is no reinforcing effect, and if the thickness is more than 50 x m, the entire ceramic plate will be warped and the flatness of the wafer mounting / holding surface will be reduced.
- Examples of the conductor layer include a metal sintered body, a non-sinterable metal body, and a conductive ceramic sintered body.
- a high melting point metal is used as a raw material of the metal sintered body and the non-sinterable metal body.
- a high melting point metal can be used.
- the high melting point metal include tungsten, molybdenum, nickel and indium. These may be used alone or in combination of two or more.
- Examples of the conductive ceramic include tungsten or molybdenum carbide.
- the conductor layer When the conductor layer is provided inside the ceramic substrate, for example, it can function as a heating element, a guard electrode, a ground electrode, an electrostatic electrode, or the like.
- the conductor layer When the conductor layer is formed on the surface of the ceramic substrate, For example, it can function as a heating element, a chuck top electrode, or the like.
- a plurality of conductor layers such as a heating element, a guard electrode, and a ground electrode can be provided inside the ceramic substrate.
- the ceramic plate provided with such a heating element can be used, for example, as a hot plate (ceramic heater), an electrostatic chuck, a wafer prober, or the like.
- FIG. 1 is a bottom view schematically showing an example of a ceramic heater which is an embodiment of a ceramic plate for a semiconductor manufacturing apparatus of the present invention.
- FIG. 2 is a partial view schematically showing a part of the ceramic heater. It is an expanded sectional view.
- the ceramic substrate 11 is formed in a disk shape, and the conductor layer (heating element) 12 is heated so that the entire temperature of the wafer mounting and holding surface of the ceramic substrate 11 becomes uniform.
- the ceramic substrate 11 is formed on the bottom surface in a concentric pattern. Further, these conductor layers 12 are connected so that double concentric circles close to each other form a single line, and terminal pins 13 serving as input / output terminals are connected to both ends thereof. . Further, a through hole 15 for inserting the support pin 16 is formed in a portion near the center, and bottomed holes 14 a to 14 i for inserting a temperature measuring element are formed. ing.
- the support pins 16 are provided so that a silicon wafer 19 can be placed thereon and moved up and down, so that the silicon wafer 19 is not shown.
- the wafer can be transferred to a transfer machine or received from the transfer apparatus.
- the conductor layer 12 as a heating element may be formed in the ceramic substrate 11 at the center thereof or at a position eccentric from the center in the direction of the wafer mounting / holding surface. In the ceramic heater, the conductor layer 12 functions not only as a mechanical reinforcing body but also as a heating element.
- a conductive paste made of metal or conductive ceramic In order to form the conductive layer 12 inside or on the bottom surface of the ceramic substrate, it is preferable to use a conductive paste made of metal or conductive ceramic.
- a conductor layer is formed inside a ceramic substrate, a conductor paste layer is formed on a green sheet, and then the green sheet is laminated and fired to produce a conductor layer inside.
- a conductor layer is formed on the surface, usually, after firing, a ceramic substrate is manufactured, a conductor paste layer is formed on the surface, and the conductor layer is formed by firing.
- the conductive paste is not particularly limited, but preferably contains not only metal particles or conductive ceramic for ensuring conductivity, but also a resin, a solvent, a thickener, and the like.
- metal particles for example, noble metals (gold, silver, platinum, palladium), lead, tungsten, molybdenum, nickel and the like are preferable. These may be used alone or in combination of two or more. This is because these metals are relatively hard to oxidize and have sufficient resistance to generate heat.
- the conductive ceramic examples include carbides of tungsten and molybdenum. These may be used alone or in combination of two or more.
- the metal particles or conductive ceramic particles preferably have a particle size of 0.1 to 100 // m. If it is too small, less than 0.1 m, it is liable to be oxidized, while if it exceeds 100 zm, sintering becomes difficult, and the resistance value becomes large.
- the shape of the metal particles may be spherical or scaly. When these metal particles are used, they may be a mixture of the sphere and the flakes. When the metal particles are flakes or a mixture of spheres and flakes, the metal oxide between the metal particles is easily retained, and the adhesion between the conductor layer 12 and the nitride ceramic or the like is increased. This is advantageous because it can ensure the performance and can increase the resistance value.
- the resin used for the conductor paste include epoxy resin and phenol. Resins. Examples of the solvent include isopropyl alcohol. Examples of the thickener include cellulose.
- the conductor paste is formed by adding metal oxide to metal particles and sintering the metal particles and metal oxide in the conductor layer 12. In this way, by sintering the metal oxide together with the metal particles, it is possible to bring the nitride ceramic, which is the ceramic substrate, into close contact with the metal particles.
- the metal oxide for example, lead oxide, zinc oxide, silica, boron oxide (B 2 0 3), alumina, at least one selected from the group consisting of yttria and titania.
- These oxides can improve the adhesion between the metal particles and the nitride ceramic without increasing the resistance value of the conductor layer 12.
- the lead oxide, zinc oxide, silica, boron oxide (B 2 0 3), alumina, Itsutori ⁇ the proportion of titania, when the 1 0 0 parts by weight of the total amount of the metal oxide, by weight, lead oxide 1 ⁇ 10, silica 1 ⁇ 30, boron oxide 5 ⁇ 50, zinc oxide 20 ⁇ 70, alumina 1 ⁇ 10, yttria :! It is desirable that the titania is 1 to 50 and the total is adjusted so as not to exceed 100 parts by weight. By adjusting the amounts of these oxides within these ranges, the adhesion to nitride ceramics can be particularly improved.
- the amount of the metal oxide added to the metal particles is preferably from 0.1% by weight to less than 10% by weight. Further, when the conductor layer 12 is formed using the conductor paste having such a configuration, the sheet resistivity is preferably from 1 to 45 ⁇ .
- the sheet resistivity exceeds 45 ⁇ ⁇ / port, the heat generation becomes too large with respect to the applied voltage, and the heat generation is controlled in the ceramic substrate 11 provided with the conductor layer 12 on the surface. Because it is hard to do.
- the addition amount of the metal oxide is 10% by weight or more, The sheet resistivity exceeds 5 ⁇ , and the calorific value becomes too large, making it difficult to control the temperature and reducing the uniformity of the temperature distribution.
- a metal coating layer 17 as shown in FIG. 2 be formed on the surface of the conductor layer 12. This is to prevent the internal metal sintered body from being oxidized to change the resistance value.
- the thickness of the metal coating layer to be formed is preferably 0.1 to 10 ⁇ m.
- the metal used for forming the metal coating layer is not particularly limited as long as it is a non-oxidizing metal, and specific examples thereof include gold, silver, palladium, platinum, and nickel. These may be used alone or in combination of two or more. Of these, nickel is preferred.
- thermocouple can be embedded in a ceramic substrate as needed. This is because the temperature of the heating element is measured with a thermocouple, and the temperature can be controlled by changing the voltage and current based on the data.
- the size of the junction of the metal wires of the thermocouple is preferably equal to or larger than the diameter of each metal wire and 0.5 mm or less.
- thermocouple examples include K-type, R-type, B-type, S-type, E-type, J-type, and T-type thermocouples as described in, for example, JIS-C-162 (1980). Pairs.
- a method for manufacturing a ceramic plate for a semiconductor manufacturing apparatus according to the present invention will be described. First, a method for manufacturing a ceramic plate in which a conductor layer 12 is formed on the bottom surface of a ceramic substrate 11 shown in FIG. 1 will be described.
- the slurry After preparing a slurry by blending a sintering aid such as yttria or a binder as necessary with the above-described nitride ceramic such as aluminum nitride, the slurry is granulated by a method such as spray drying, and the granules are formed. It is put into a mold or the like and pressurized to form a plate, etc., to produce a green body.
- a sintering aid such as yttria or a binder
- support pins for supporting the silicon wafer A portion serving as a through hole 15 for inserting 16 and a portion serving as a bottomed hole 14 a to 14 i for embedding a temperature measuring element such as a thermocouple are formed.
- the formed body is heated, fired and sintered to produce a ceramic plate.
- the ceramic substrate 11 is manufactured by processing into a predetermined shape, but may be a shape that can be used as it is after firing. By performing heating and firing while applying pressure, it is possible to manufacture a ceramic substrate 11 having no pores.
- the heating and sintering may be performed at a temperature equal to or higher than the sintering temperature.
- the flatness is adjusted after sintering. Flatness, from both sides with the existing # 1 0 0 # 8 0 0 roughness of the diamond grindstone (duplex platen), 0. L be co polishing while applying SO kg pressure of Z cm 2 Is achieved by
- the rotation speed of the grindstone is 50 to 300 rpm.
- Diamond whetstones are produced by electrodepositing diamond.
- the ceramic substrate slightly warps due to polishing stress, and it is difficult to reduce the flatness to less than 1 zz m. Therefore, in order to reduce the flatness to less than 1 m, only one side is polished by its own weight so that such stress does not occur.
- the conductor paste is generally a high-viscosity fluid composed of metal particles, a resin, and a solvent. This conductor paste is printed on the portion where the conductor layer is to be provided by using screen printing or the like to form a conductor paste layer. Since the conductor layer needs to have a uniform temperature throughout the ceramic substrate, it is desirable to print the conductor layer in a concentric pattern as shown in FIG.
- the conductor paste layer is desirably formed so that the cross section of the fired conductor layer: 12 is square and flat.
- the conductor paste layer printed on the bottom surface of the ceramic substrate 11 is heated and fired, While removing the solvent, the metal particles are sintered and baked on the bottom surface of the ceramic substrate 11 to form the conductor layer 12.
- the heating and firing temperature is preferably from 500 to 100 ° C.
- the metal particles, the ceramic substrate and the metal oxide are sintered and integrated, so that the adhesion between the conductor layer and the ceramic substrate is improved.
- the metal coating layer can be formed by electroplating, electroless plating, sputtering, etc., but in consideration of mass productivity, electroless plating is optimal.
- terminals (terminal pins 13) for connection to the power supply are soldered to the end of the conductor layer (heating element) 12 pattern.
- a thermocouple is inserted into the bottomed holes 14a to 14i, sealed with a heat-resistant resin such as polyimide, or ceramic, to form a ceramic plate having a conductor layer on the bottom surface.
- a paste is prepared by mixing a nitride ceramic powder with a binder, a solvent, and the like, and a green sheet is produced using the paste.
- ceramic powder aluminum nitride or the like can be used, and if necessary, a sintering aid such as yttria may be added.
- the binder at least one selected from an acrylic binder, ethyl cellulose, butyl cellulose solvent, and polyvinyl alcohol is desirable.
- the solvent is preferably at least one selected from the group consisting of ether terpineol and glycol.
- a paste obtained by mixing these is formed into a sheet by a doctor blade method to produce a green sheet.
- the thickness of the green sheet is preferably 0.1 to 5 mm.
- a part to be a through hole for inserting a support pin for supporting a silicon wafer and a part to be a bottomed hole for embedding a temperature measuring element such as a thermocouple into the obtained green sheet Then, a portion serving as a through hole for connecting the conductor layer to an external end pin is formed.
- the above processing may be performed after forming a green sheet laminate described later.
- These conductive pastes contain metal particles or conductive ceramic particles.
- the average particle size of the tungsten particles or molybdenum particles is preferably 0.1 to 5 m. If the average particle size is less than 0.1 m or more than 5 m, it is difficult to print the conductive paste.
- a conductive paste for example, 85 to 87 parts by weight of metal particles or conductive ceramic particles; at least one kind of binder selected from acrylic, ethyl cellulose, butyl cellulose, and polyvinyl alcohol 1. 5 to 10 parts by weight; and a composition (paste) in which at least one solvent selected from ⁇ -terbineol and glycol is mixed with 1.5 to 10 parts by weight.
- the number of green sheets laminated on the upper side is made larger than the number of green sheets laminated on the lower side, and the formation position of the conductor layer is decentered toward the bottom.
- the number of stacked green sheets on the upper side is preferably 20 to 50, and the number of stacked green sheets on the lower side is preferably 5 to 20.
- the green sheet laminate is heated and pressed to sinter the green sheet and the inner conductive paste.
- the heating temperature is preferably 100 to 200 ° C.
- the pressurizing pressure is 100 to 200 ° C. 1 o
- Heating is performed in an inert gas atmosphere.
- the inert gas for example, argon, nitrogen, or the like can be used.
- a bottomed hole for inserting a temperature measuring element may be provided.
- the bottomed hole can be formed by performing blast treatment such as sand blasting after surface polishing. Also, connect the terminal to the through hole for connecting to the internal conductor layer, heat it, and close the riff.
- the heating temperature is preferably from 200 to 500.
- the flatness is adjusted after sintering.
- the flatness is achieved by simultaneously polishing from both sides using a diamond whetstone (double-sided surface plate) having a roughness of # 100 to # 800 while applying a pressure of 0.1 to 50 kgZcm 2 .
- the rotation speed of the grinding wheel is 50-300 rpm.
- Diamond whetstones are produced by electrodepositing diamond.
- the ceramic substrate slightly warps due to polishing stress, and it is difficult to reduce the flatness to less than 1 im. Therefore, in order to reduce the flatness to less than 1> m, only one side is polished by its own weight so that such stress does not occur.
- thermocouple as a temperature measuring element is sealed with a heat-resistant resin to form a ceramic plate having a conductor layer inside.
- Example 1 (Production of a ceramic plate having a conductor layer inside)
- Paste A 100 parts by weight of tungsten carbide particles having an average particle diameter of 1 xm, 3.0 parts by weight of an acrylic binder, 3.5 parts by weight of a-terbeneol solvent, and 0.3 parts by weight of a dispersing agent are mixed together to form a conductor.
- Paste A was prepared.
- Conductive paste B was prepared by mixing 100 parts by weight of tungsten particles having an average particle size of 3, 1.9 parts by weight of an acrylic binder, 3.7 parts by weight of a terbineol solvent, and 0.2 parts by weight of a dispersant.
- the conductive paste A was printed on a green sheet by screen printing to form a conductive paste layer 104.
- the printing pattern was a concentric pattern as shown in Fig. 1.
- the conductor paste B was filled in the through-hole for the through-hole for connecting the terminal pin.
- the plate-like body obtained in (4) was rotated at 100 rpm by applying a pressure of 1 kg / cm 2 using a double-sided grinding plate having a # 220 diamond grindstone. After being rotated, they were polished at the same time. As a result, a ceramic plate 111 having a conductive layer 102 having a thickness of 6 ⁇ m and a width of 10 mm was obtained. (See Fig. 3 (b))
- a part of the through hole for the through hole is cut out to form a recess (see Fig. 3 (c)).
- Kovar terminal pin 120 was connected (see Fig. 3 (d)).
- a bottomed hole 122 (diameter: 1.2 mm, depth: 2.0 mm) is formed by drilling.
- a plurality of thermocouples 121 for temperature control were buried in the bottomed holes 122 to complete the production of a ceramic plate having a heating element as a conductor layer (see FIG. 3 (e)).
- Fig. 3 is a graph showing the measurement results. (A) shows the measurement results in the X-axis direction, and (b) shows the measurement results in the Y-axis direction.
- the flatness was measured using a warpage measuring device (manufactured by Kyocera Corporation, trade name: Nanoway). The flatness was measured using the same apparatus as described below.
- Test example 1 manufactured of ceramic plate with conductor layer inside
- a ceramic plate was manufactured in the same manner as in Example 1 except that diamond polishing was not performed.
- the flatness of the wafer mounting and holding surface of the obtained ceramic plate was 25.5 rn in the X direction and 23. in the Y direction in the measurement range of 205 mm in length.
- the flatness of the wafer mounting and holding surface of the obtained ceramic plate was 0.55 m in the X direction and 0.84 m in the Y direction within a measurement range of 205 mm in length.
- a ceramic plate was manufactured in the same manner as in Example 1 except that the diameter of the substrate was set to 190 mm and the substrate was not polished.
- the flatness of the wafer mounting / holding surface of the obtained ceramic plate was 25 mm in the X direction and 23 in the Y direction in a measurement range of 180 mm in length.
- Comparative Example 2 A ceramic plate was manufactured in the same manner as in Example 1, except that a defective ceramic plate obtained by hot pressing was used.
- the flatness of the holding surface of the obtained ceramic plate on the wafer mounting surface was 55 m in the X direction and 52 m in the Y direction within a measurement range of 205 mm in length.
- Example 2 (Production of a ceramic plate having a conductor layer on the surface)
- This aluminum nitride sintered body was cut into a disk shape having a diameter of 21.5 mm, and the surface was polished at a pressure of 1 kgZcm 2 using a double-sided grinding plate having a mesh 220 diamond grindstone.
- Solvent PS 603D manufactured by Tokuka Chemical Laboratory, which is used to form through holes in printed wiring boards, was used.
- This conductive paste is a silver-lead paste, and based on 100 parts by weight of silver, lead oxide (5% by weight), zinc oxide (55% by weight), silica (10% by weight), and boron oxide (25% by weight) %) And 7.5% by weight of a metal oxide consisting of alumina (5% by weight).
- the silver particles had a mean particle size of 4.5 zm and were scaly.
- the sintered body on which the conductor paste was printed was heated and fired at 780 ° C to sinter the silver and lead in the conductor paste and baked the sintered body to form a heating element 12.
- the silver-lead heating element 12 had a thickness of 5 m, a width of 2.4 mm, and a sheet resistivity of 7.7 ⁇ .
- the above electroless nickel plating bath consisting of an aqueous solution of nickel sulfate 80 g / sodium hypophosphite 24 g / 1, sodium acetate 12 gZl, boric acid 8 g / ammonium chloride 6 g / 1
- the sintered body prepared in 3 was immersed to deposit a metal coating layer (nickel layer) having a thickness of 1 on the surface of the silver-lead lead heating element 12.
- a silver-lead solder paste (made by Tanaka Kikinzoku) was printed by screen printing on the part where the terminal for securing the connection to the power supply was to be attached, to form a solder layer.
- the Kovar terminal pin 13 was placed on the solder layer, and heated and reflowed at 420 with the terminal pin 13 attached to the surface of the heating element 12.
- the flatness of the heating surface (wafer mounting / holding surface) of the obtained ceramic plate was 20 m in the X direction and 18 in the Y direction in a measuring range of 205 mm in length.
- thermocouple for temperature control was inserted into the bottomed hole 14, filled with a polyimide resin, and cured with 190 for 2 hours to obtain a ceramic heater 10 (see FIG. 2).
- the ceramic pin 10 has support pins 16 arranged in through holes 16 provided in the ceramic substrate 11 and the support pins between the ceramic substrate 11 and the wafer 19 with the support pins. Heat to 250 with an interval of 50 zm.
- the spacing between the ceramic substrate and the wafer is preferably 5 to 500. If the distance between the two is too large or too small, the temperature distribution tends to be uneven.
- a ceramic plate was manufactured in the same manner as in Example 2 except that a defective ceramic plate obtained by a hot press was used and diamond polishing was not performed.
- the flatness of the wafer mounting / holding surface of the obtained ceramic plate was 55 m in the X direction and 60 m in the Y direction in a measurement range of 205 mm in length. Comparative Example 4
- a ceramic plate was manufactured in the same manner as in Example 2, except that only one side was polished by rotating a # 220 diamond grindstone with no load (only its own weight) at a rotation speed of 100 rpm.
- the flatness of the holding surface of the wafer placed on the ceramic plate was measured within a measurement range of 205 mm in length, 0.45 ⁇ 11 in the X direction and 0.65 ⁇ m in the Y direction.
- a ceramic plate was manufactured in the same manner as in Example 2 except that diamond polishing was not performed.
- the flatness of the wafer mounting and holding surface of the obtained ceramic plate was within a measurement range of 205 mm in length, 23 im in the X direction and 22; m in the Y direction.
- a silicon wafer was placed on the ceramic plates obtained in Examples 1 and 2, Test Examples 1 to 3, and Comparative Examples 1 to 4, and the conductor layer (heating element) was energized to raise the temperature to 600. Later, when the difference between the maximum temperature and the minimum temperature of the silicon wafer was measured with a thermometer, it was 9 in Example 1 and 25 in Test Example 1 and 9 in Test Example 2.
- Comparative Example 1 the silicon wafer did not come off the ceramic substrate, but was broken when it was forcibly peeled off, and in Comparative Example 2, the temperature rose to only 200. In Example 2, the temperature difference was 1 ° C. In Comparative Example 3, the wafer could not be held at a distance of 50 m. This is because they come into contact with the ceramic substrate. In Comparative Example 4, the silicon wafer did not peel off from the ceramic substrate, and in Test Example 3, the wafer temperature difference was 5 "C.
- Example 3 (manufacture of electrostatic chuck)
- a conductor paste B was prepared by mixing 100 parts by weight of tungsten particles having an average particle diameter of 3 m, 1.9 parts by weight of an acrylic binder, 3.7 parts by weight of a terbineol solvent and 0.2 parts by weight of a dispersant.
- the conductive paste A was printed on a green sheet by screen printing to form an electrode pattern including a comb-shaped printed electrostatic electrode and a grid-shaped printed RF electrode.
- 37 green sheets without tungsten paste printed on the upper side (heated surface), 13 on the lower side, 1 30 ° C, 8 0 was laminated with a pressure of k gZcm 2.
- the obtained laminate was degreased in nitrogen gas at 60 Ot for 5 hours, and hot-pressed at 1890 ° C and a pressure of 150 kgZcm 2 for 3 hours to obtain a 3 mm-thick aluminum nitride.
- a plate-like body was obtained. This was cut into a disk shape of 215 mm and subjected to diamond polishing in the same manner as in Example 1 to obtain a ceramic plate (electrostatic chuck) having a conductor having a thickness of 6 m and a width of 10 mm inside.
- Fig. 4 is a graph showing the measurement results.
- (A) is the measurement result in the X-axis direction
- (b) is the measurement result in the Y-axis direction.
- Test example 4 (manufacture of electrostatic chuck)
- An electrostatic chuck was manufactured in the same manner as in Example 3, except that no dhammond polishing was performed.
- the flatness of the holding surface (heating surface) of the wafer placed on the obtained electrostatic chuck is within a measuring range of 205 mm in length, 25.5 m in the X direction and 23.30 in the Y direction.
- Example 3 After manufacturing an aluminum nitride plate in the same manner as in Example 3, it was subjected to diamond polishing by the same method as used in Comparative Example 1 to obtain an electrostatic chuck.
- the flatness of the wafer holding surface of the obtained electrostatic chuck was 20 mm.
- An electrostatic chuck was manufactured in the same manner as in Example 3, except that the diameter of the ceramic substrate was 190 mm and the substrate was not polished.
- the flatness of the wafer mounting / holding surface of the obtained electrostatic chuck was 26 mm in the X direction and 25 in the Y direction within a measurement range of 180 mm in length. Comparative Example 6
- the flatness of the wafer mounting / holding surface of the obtained electrostatic chuck was 55 m in the X direction and 52 m in the Y direction within a measurement range of 205 mm in length.
- a voltage of 1 kV was applied, the silicon wafer was attracted, and the peeling force was measured with a load cell. It was 125 gZcm 2 in vacuum, and 80 gZcm 2 in the electrostatic chuck according to Test Example 4.
- the electrostatic chuck according to Comparative Example 5 when the pressure was returned to the atmospheric pressure, the silicon wafer did not come off the ceramic substrate, and was broken when forcibly peeled off.
- the peeling force was 110 kgZcm 2 .
- the electrostatic chuck according to Comparative Example 6 when the voltage of 1 kV was applied to measure the attraction force, the wafer was broken.
- tungsten particles having an average particle size of 3 100 parts by weight of an acrylic binder, 3.7 parts by weight of an ⁇ -terbineol solvent, and 0.2 part by weight of a dispersant are mixed to form a conductive base. did.
- a grid-shaped guard electrode printed body 50 and a ground electrode printed body 60 were printed and printed on the green sheet by screen printing using the conductive base.
- the conductive base B was filled into the through-hole for the through-hole for connecting to the terminal pin.
- 50 sheets of the printed green sheet 30 and the unprinted green sheet 30 were laminated and integrated at 130 ° C. and a pressure of 80 kg cm 2 to produce a laminated body ( (See Fig. 6 (a)).
- this laminate was degreased in nitrogen gas at 600 ° C. for 5 hours, and hot-pressed at 1890: 1 at a pressure of 150 kg / cm 2 for 3 hours to obtain an aluminum nitride plate having a thickness of 3 mm.
- a solid was obtained.
- the obtained plate was cut into a circular shape with a diameter of 21.5 mm to obtain a ceramic plate (see FIG. 6 (b)).
- the size of the through holes 26 and 27 was 0.2 mm in diameter and 2 mm in depth.
- the thickness of the guard electrode 5 and the ground electrode 6 is 10 ⁇ m, the guard electrode 5 is formed at a position 1 mm from the wafer mounting and holding surface, and the duland electrode 6 is formed at the wafer mounting and holding surface. From 1.2 mm.
- thermocouple for a thermocouple on the surface.
- a recess (not shown) and a groove 7 (0.5 mm wide, 0.5 mm deep) for silicon wafer suction were provided (see Fig. 6 (c)).
- the heating element 41 was printed on the surface opposite to the wafer mounting / holding surface.
- conductive paste was used.
- the conductive paste used was Solvent PS 603D manufactured by Tokuka Chemical Laboratories, which is used to form through holes in printed wiring boards.
- This conductive paste is a silver-lead paste, and 100 parts by weight of silver is a metal oxide composed of lead oxide, zinc oxide, silica, boron oxide, and alumina (each weight ratio is 5Z55 10Z2 5/5). 7.5 parts by weight.
- the silver was scaly with an average particle size of 4.5.
- the heater plate on which the conductive paste was printed was heated and baked at 780 ° C to sinter the silver and lead in the conductive paste and baked on the ceramic substrate 3 to form a heating element 41 (Fig. 6 ( d)).
- the silver plate is immersed in an electroless nickel plating bath consisting of an aqueous solution containing nickel sulfate 30 gZ1, boric acid 30 g / l, ammonium chloride 30 g / 1, and Rossier salt 60 g / 1 to sinter silver.
- a nickel layer 410 having a thickness of 1 rn and a boron content of 1% by weight or less was deposited on the surface of the body 41.
- the heating plate was annealed at 120 ° C for 3 hours.
- the heating element made of silver sintered body had a thickness of 5 zm, a width of 2.4 mm, and a sheet resistivity of 7. ⁇ .
- a titanium layer, a molybdenum layer, and a nickel layer were sequentially formed on the surface where the grooves 7 were formed by sputtering.
- a device for sputtering SV-4540 manufactured by Japan Vacuum Engineering Co., Ltd. was used.
- the sputtering conditions were as follows: atmospheric pressure: 0.6 Pa, temperature: 100, power: 200 W.
- the sputtering time was adjusted within a range of 30 seconds to 1 minute for each metal.
- the thickness of the obtained film was 0.3 m for the titanium layer, 2 m for the molybdenum layer, and 1 m for the nickel layer from the image of the X-ray fluorescence spectrometer.
- Electroless nickel plating bath consisting of an aqueous solution containing 1 and Rossier salt 60 g / 1, and nickel sulfate 250-350, nickel chloride 40-70, boric acid 30-501, pH 2.4 with sulfuric acid.
- the ceramic plate obtained in (8) above was immersed, and the surface of the metal layer formed by spattering was 7 m thick and had a boron content of 1 m. % Nickel layer was deposited and annealed at 120 for 3 hours.
- the heating element surface does not conduct current and is not covered with electrolytic nickel plating.
- electroless plating solution containing 2 gZl of potassium potassium cyanide, 75 gZl of ammonium chloride, 50 gZl of sodium citrate and 10 gZl of sodium hypophosphite on the surface was added at 93 ° C. After immersion for one minute, a 1-meter-thick gold-plated layer was formed on the nickel plating layer (see Fig. 7 (e)).
- An air suction hole 8 was formed from the groove 7 to the back surface by drilling, and a blind hole 28 for exposing the through holes 26 and 27 was provided (see FIG. 7 (f)).
- a brazing filler metal made of Ni-Au alloy (Au 81.5% by weight, Ni 18.4% by weight, impurities 0.1% by weight) in the blind hole 28, heat it at 970 ° C and reflow it.
- the external terminal pins 29 and 290 made of the same type are connected (see Fig. 7 (g)).
- external terminal pins 291 made of Kovar were formed on the heat generator via solder (tin 9 lead 1).
- thermocouples for temperature control are embedded in the recess, and the wafer prober is used. I got The flatness of the holding surface (heating surface) of the wafer mounting surface of the obtained wafer probe was 15.5 ⁇ m in the X direction and 12.4 ⁇ in the Y direction in a measurement range of 205 mm in length. Met.
- the wafer prober 101 was placed on the stainless steel support 31 shown in FIG. 7 via a heat insulating material 30 made of ceramic fiber (trade name: IBIWOOL, manufactured by IBIDEN).
- the support table 31 has a coolant outlet 32, and can adjust the temperature of the wafer prober 101.
- refrigerant and air are sucked from the suction port 33 to suck the silicon wafer.
- Test example 6 (manufacture of wafer prober)
- a wafer prober was manufactured in the same manner as in Example 4 except that no dhammond polishing was performed.
- the flatness of the wafer mounting surface (heating surface) of the obtained wafer prober was 25.5 m in the X direction and 23.4 m in the Y direction within a measurement range of 205 mm in length. .
- a wafer prober was manufactured in the same manner as in Example 4, except that a defective ceramic substrate obtained by hot pressing was used.
- the flatness of the wafer mounting surface of the obtained wafer prober was 55 mm in the X direction and 52 in the Y direction in a measurement range of 205 mm in length.
- a silicon wafer was placed on the wafer prober according to Example 4 and Test Example 6, and heated. At that time, the wafer prober according to Example 4 did not damage the silicon wafer, but the wafer prober according to Test Example 6 was damaged.
- the silicon wafer was placed on the wafer prober according to Comparative Example 7, and the temperature was raised to 200 ° C when heating was performed.However, since the wafer and the prober were in line contact, the temperature of the wafer increased. And the measurement test itself could not be performed.
- the wafer can be heated by adjusting the flatness of the wafer mounting / holding surface to 50 / m or less, and in particular, the wafer temperature can be made uniform by adjusting the flatness to 20 m or less. Can be Also, there is no damage to the wafer even when chucked. Such an effect is particularly remarkable in a disk-shaped ceramic substrate having a diameter of 200 mm or more. Possibility of industrial use
- the ceramic plate for a semiconductor manufacturing apparatus of the present invention when used as a heater, when the silicon wafer is heated, it is heated so that the temperature of the silicon wafer becomes uniform throughout. Silicon wafers are not damaged because they can be removed, and when used as an electrostatic chuck, sufficient chucking force can be obtained. Therefore, semiconductor manufacturing equipment such as hot plates, electrostatic chucks, and wafer probers As the best.
Landscapes
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/806,477 US6717116B1 (en) | 1999-08-10 | 1999-12-28 | Semiconductor production device ceramic plate |
| EP99961446A EP1120829A4 (en) | 1999-08-10 | 1999-12-28 | Semiconductor production device ceramic plate |
| US10/346,095 US7084376B2 (en) | 1999-08-10 | 2003-01-17 | Semiconductor production device ceramic plate |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22676899 | 1999-08-10 | ||
| JP11/226768 | 1999-08-10 |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09806477 A-371-Of-International | 1999-12-28 | ||
| US09/806,477 A-371-Of-International US6717116B1 (en) | 1999-08-10 | 1999-12-28 | Semiconductor production device ceramic plate |
| US10/346,095 Continuation US7084376B2 (en) | 1999-08-10 | 2003-01-17 | Semiconductor production device ceramic plate |
| US10/663,681 Continuation US20040060919A1 (en) | 1999-08-10 | 2003-09-17 | Semiconductor production device ceramic plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001013423A1 true WO2001013423A1 (en) | 2001-02-22 |
Family
ID=16850318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/007368 Ceased WO2001013423A1 (en) | 1999-08-10 | 1999-12-28 | Semiconductor production device ceramic plate |
Country Status (3)
| Country | Link |
|---|---|
| US (4) | US6717116B1 (ja) |
| EP (1) | EP1120829A4 (ja) |
| WO (1) | WO2001013423A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020004751A (ja) * | 2018-06-25 | 2020-01-09 | 日本特殊陶業株式会社 | 静電チャック、および、静電チャックの製造方法 |
| CN110770193A (zh) * | 2017-06-30 | 2020-02-07 | 株式会社美科 | 氮化铝烧结体及包括其的半导体制造装置用构件 |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1120829A4 (en) * | 1999-08-10 | 2009-05-27 | Ibiden Co Ltd | Semiconductor production device ceramic plate |
| EP1249433A4 (en) * | 1999-09-06 | 2005-01-05 | Ibiden Co Ltd | BRICKET AND CERAMIC SUBSTRATE OF SINKED CARBON CONTAINING ALUMINUM NITRIDE FOR USE IN DEVICES FOR MANUFACTURING AND STUDYING SEMICONDUCTORS |
| JP2001237053A (ja) * | 1999-12-14 | 2001-08-31 | Ibiden Co Ltd | 半導体製造・検査装置用セラミックヒータおよび支持ピン |
| US20040222211A1 (en) * | 1999-12-28 | 2004-11-11 | Ibiden Co., Ltd. | Carbon-containing aluminum nitride sintered body, and ceramic substrate for a semiconductor producing/examining device |
| US6861165B2 (en) * | 2000-02-24 | 2005-03-01 | Ibiden Co., Ltd. | Aluminum nitride sintered compact, ceramic substrate, ceramic heater and electrostatic chuck |
| JP2001247382A (ja) * | 2000-03-06 | 2001-09-11 | Ibiden Co Ltd | セラミック基板 |
| WO2001066488A1 (en) | 2000-03-07 | 2001-09-13 | Ibiden Co., Ltd. | Ceramic substrate for manufacture/inspection of semiconductor |
| EP1383168A1 (en) * | 2000-03-15 | 2004-01-21 | Ibiden Co., Ltd. | Method of producing electrostatic chucks and method of producing ceramic heaters |
| EP1233651A1 (en) * | 2000-04-07 | 2002-08-21 | Ibiden Co., Ltd. | Ceramic heater |
| JP3565496B2 (ja) * | 2000-04-13 | 2004-09-15 | イビデン株式会社 | セラミックヒータ、静電チャックおよびウエハプローバ |
| WO2001091166A1 (en) * | 2000-05-26 | 2001-11-29 | Ibiden Co., Ltd. | Semiconductor manufacturing and inspecting device |
| JP3516392B2 (ja) * | 2000-06-16 | 2004-04-05 | イビデン株式会社 | 半導体製造・検査装置用ホットプレート |
| EP1229572A1 (en) * | 2000-07-04 | 2002-08-07 | Ibiden Co., Ltd. | Hot plate for semiconductor manufacture and testing |
| US6815646B2 (en) * | 2000-07-25 | 2004-11-09 | Ibiden Co., Ltd. | Ceramic substrate for semiconductor manufacture/inspection apparatus, ceramic heater, electrostatic clampless holder, and substrate for wafer prober |
| JP2002160974A (ja) * | 2000-11-22 | 2002-06-04 | Ibiden Co Ltd | 窒化アルミニウム焼結体、窒化アルミニウム焼結体の製造方法、セラミック基板およびセラミック基板の製造方法 |
| JPWO2002084717A1 (ja) * | 2001-04-11 | 2004-08-05 | イビデン株式会社 | 半導体製造・検査装置用セラミックヒータ |
| JP3753040B2 (ja) * | 2001-09-25 | 2006-03-08 | 住友電気工業株式会社 | 光ファイバ融着接続部の加熱方法および加熱装置 |
| US7234117B2 (en) * | 2002-08-28 | 2007-06-19 | Microsoft Corporation | System and method for shared integrated online social interaction |
| JP3975944B2 (ja) * | 2003-02-27 | 2007-09-12 | 住友電気工業株式会社 | 半導体あるいは液晶製造装置用保持体およびそれを搭載した半導体あるいは液晶製造装置 |
| US7709814B2 (en) * | 2004-06-18 | 2010-05-04 | Axcelis Technologies, Inc. | Apparatus and process for treating dielectric materials |
| CN101019208B (zh) * | 2004-06-28 | 2010-12-08 | 京瓷株式会社 | 晶片加热装置及半导体制造装置 |
| US20060088692A1 (en) * | 2004-10-22 | 2006-04-27 | Ibiden Co., Ltd. | Ceramic plate for a semiconductor producing/examining device |
| US7300707B2 (en) * | 2004-10-25 | 2007-11-27 | Creative Technology Corporation | Aluminium composite structure having a channel therein and method of manufacturing the same |
| US20070044916A1 (en) * | 2005-08-31 | 2007-03-01 | Masakazu Isozaki | Vacuum processing system |
| US7646092B2 (en) * | 2005-12-06 | 2010-01-12 | Yamaha Corporation | Semiconductor device and manufacturing method thereof |
| JP4707593B2 (ja) * | 2006-03-23 | 2011-06-22 | 大日本スクリーン製造株式会社 | 熱処理装置と基板吸着方法 |
| US8226769B2 (en) * | 2006-04-27 | 2012-07-24 | Applied Materials, Inc. | Substrate support with electrostatic chuck having dual temperature zones |
| JP2008108703A (ja) * | 2006-09-28 | 2008-05-08 | Covalent Materials Corp | 面状ヒータ及びこのヒータを備えた半導体熱処理装置 |
| US7763831B2 (en) * | 2006-12-15 | 2010-07-27 | Ngk Insulators, Ltd. | Heating device |
| JP5117146B2 (ja) * | 2006-12-15 | 2013-01-09 | 日本碍子株式会社 | 加熱装置 |
| US7777160B2 (en) * | 2007-12-17 | 2010-08-17 | Momentive Performance Materials Inc. | Electrode tuning method and apparatus for a layered heater structure |
| US8405005B2 (en) * | 2009-02-04 | 2013-03-26 | Mattson Technology, Inc. | Electrostatic chuck system and process for radially tuning the temperature profile across the surface of a substrate |
| US8580593B2 (en) * | 2009-09-10 | 2013-11-12 | Micron Technology, Inc. | Epitaxial formation structures and associated methods of manufacturing solid state lighting devices |
| US9538583B2 (en) * | 2013-01-16 | 2017-01-03 | Applied Materials, Inc. | Substrate support with switchable multizone heater |
| US10636690B2 (en) * | 2016-07-20 | 2020-04-28 | Applied Materials, Inc. | Laminated top plate of a workpiece carrier in micromechanical and semiconductor processing |
| US20210265189A1 (en) * | 2018-09-28 | 2021-08-26 | Kyocera Corporation | Ceramic structure and wafer system |
| US12451338B2 (en) * | 2021-06-15 | 2025-10-21 | Kyocera Corporation | Plasma treatment apparatus member |
| CN118147615A (zh) * | 2022-12-06 | 2024-06-07 | 中微半导体设备(上海)股份有限公司 | 分气转接环、托盘旋转机构及半导体处理设备 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07183342A (ja) * | 1993-12-22 | 1995-07-21 | Nippon Telegr & Teleph Corp <Ntt> | 試料・探針間導通状態判知法 |
| JPH07297265A (ja) * | 1994-04-26 | 1995-11-10 | Shin Etsu Chem Co Ltd | 静電チャック |
| JPH0866071A (ja) * | 1994-08-19 | 1996-03-08 | Sony Corp | 静電吸着装置 |
| JPH10275524A (ja) * | 1997-03-31 | 1998-10-13 | Kyocera Corp | 耐プラズマ部材 |
| JPH10289944A (ja) * | 1997-04-16 | 1998-10-27 | Sony Corp | 静電吸着装置及び静電吸着方法 |
| JPH10338574A (ja) * | 1997-06-06 | 1998-12-22 | Ngk Insulators Ltd | 窒化アルミニウム基複合体、電子機能材料、静電チャックおよび窒化アルミニウム基複合体の製造方法 |
| JPH11111809A (ja) * | 1997-10-07 | 1999-04-23 | Innotech Corp | 搬送装置 |
Family Cites Families (53)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804823A (en) * | 1986-07-31 | 1989-02-14 | Kyocera Corporation | Ceramic heater |
| JP2511295B2 (ja) | 1988-07-26 | 1996-06-26 | 富士写真フイルム株式会社 | マイクロフィルム撮影用ロ―タリ―カメラ |
| JPH02174116A (ja) | 1988-12-26 | 1990-07-05 | Toshiba Ceramics Co Ltd | サセプタ |
| US5151871A (en) * | 1989-06-16 | 1992-09-29 | Tokyo Electron Limited | Method for heat-processing semiconductor device and apparatus for the same |
| JPH0628258B2 (ja) | 1990-07-20 | 1994-04-13 | 日本碍子株式会社 | 半導体ウエハー加熱装置及びその製造方法 |
| DE69111493T2 (de) | 1990-03-12 | 1996-03-21 | Ngk Insulators Ltd | Wafer-Heizgeräte für Apparate, zur Halbleiterherstellung Heizanlage mit diesen Heizgeräten und Herstellung von Heizgeräten. |
| DE69130205T2 (de) * | 1990-12-25 | 1999-03-25 | Ngk Insulators, Ltd., Nagoya, Aichi | Heizungsapparat für eine Halbleiterscheibe und Verfahren zum Herstellen desselben |
| JPH04287344A (ja) | 1991-03-15 | 1992-10-12 | Kyocera Corp | 静電チャックの接合構造 |
| JPH06291049A (ja) | 1993-03-31 | 1994-10-18 | Kyocera Corp | 薄膜形成装置 |
| US5463526A (en) * | 1994-01-21 | 1995-10-31 | Lam Research Corporation | Hybrid electrostatic chuck |
| TW444922U (en) * | 1994-09-29 | 2001-07-01 | Tokyo Electron Ltd | Heating device and the processing device using the same |
| US6133557A (en) * | 1995-01-31 | 2000-10-17 | Kyocera Corporation | Wafer holding member |
| US5886863A (en) * | 1995-05-09 | 1999-03-23 | Kyocera Corporation | Wafer support member |
| US6686191B1 (en) * | 1995-09-22 | 2004-02-03 | Bayer Healthcare Llc | Preparation of virally inactivated intravenously injectable immune serum globulin |
| KR100250636B1 (ko) * | 1996-11-13 | 2000-05-01 | 윤종용 | 반도체 장치 제조용 가열챔버의 원형 가열판 |
| EP0853444B1 (de) * | 1997-01-10 | 2005-11-23 | E.G.O. ELEKTRO-GERÄTEBAU GmbH | Kochsystem mit einer Kontaktwärme übertragenden Elektro-Kochplatte |
| JP3165396B2 (ja) | 1997-07-19 | 2001-05-14 | イビデン株式会社 | ヒーターおよびその製造方法 |
| JP3145664B2 (ja) | 1997-08-29 | 2001-03-12 | 京セラ株式会社 | ウエハ加熱装置 |
| JP3847920B2 (ja) | 1997-10-06 | 2006-11-22 | 株式会社アルバック | 静電吸着ホットプレート、真空処理装置、及び真空処理方法 |
| JPH11168134A (ja) * | 1997-12-03 | 1999-06-22 | Shin Etsu Chem Co Ltd | 静電吸着装置およびその製造方法 |
| JP3477062B2 (ja) * | 1997-12-26 | 2003-12-10 | 京セラ株式会社 | ウエハ加熱装置 |
| US6639191B2 (en) * | 1999-01-25 | 2003-10-28 | Ibiden Co., Ltd. | Hot plate unit |
| WO2000069219A1 (en) * | 1999-05-07 | 2000-11-16 | Ibiden Co., Ltd. | Hot plate and method of producing the same |
| JP2001118664A (ja) | 1999-08-09 | 2001-04-27 | Ibiden Co Ltd | セラミックヒータ |
| EP1120829A4 (en) * | 1999-08-10 | 2009-05-27 | Ibiden Co Ltd | Semiconductor production device ceramic plate |
| EP1199908A4 (en) * | 1999-10-22 | 2003-01-22 | Ibiden Co Ltd | CERAMIC HEATING ELEMENT |
| EP1124256A1 (en) * | 1999-11-10 | 2001-08-16 | Ibiden Co., Ltd. | Ceramic substrate |
| EP1124404B1 (en) * | 1999-11-19 | 2005-08-10 | Ibiden Co., Ltd. | Ceramic heater |
| JP2001297857A (ja) * | 1999-11-24 | 2001-10-26 | Ibiden Co Ltd | 半導体製造・検査装置用セラミックヒータ |
| WO2001041508A1 (en) * | 1999-11-30 | 2001-06-07 | Ibiden Co., Ltd. | Ceramic heater |
| US6884972B2 (en) * | 1999-12-09 | 2005-04-26 | Ibiden Co., Ltd. | Ceramic plate for a semiconductor producing/inspecting apparatus |
| US20040222211A1 (en) * | 1999-12-28 | 2004-11-11 | Ibiden Co., Ltd. | Carbon-containing aluminum nitride sintered body, and ceramic substrate for a semiconductor producing/examining device |
| JP3228923B2 (ja) * | 2000-01-18 | 2001-11-12 | イビデン株式会社 | 半導体製造・検査装置用セラミックヒータ |
| JP3228924B2 (ja) * | 2000-01-21 | 2001-11-12 | イビデン株式会社 | 半導体製造・検査装置用セラミックヒータ |
| JP2001244320A (ja) | 2000-02-25 | 2001-09-07 | Ibiden Co Ltd | セラミック基板およびその製造方法 |
| EP1383168A1 (en) * | 2000-03-15 | 2004-01-21 | Ibiden Co., Ltd. | Method of producing electrostatic chucks and method of producing ceramic heaters |
| EP1233651A1 (en) * | 2000-04-07 | 2002-08-21 | Ibiden Co., Ltd. | Ceramic heater |
| JP2001302330A (ja) * | 2000-04-24 | 2001-10-31 | Ibiden Co Ltd | セラミック基板 |
| WO2001084886A1 (en) * | 2000-05-02 | 2001-11-08 | Ibiden Co., Ltd. | Ceramic heater |
| EP1435654A3 (en) * | 2000-05-10 | 2004-07-14 | Ibiden Co., Ltd. | Electrostatic chuck |
| WO2001091166A1 (en) * | 2000-05-26 | 2001-11-29 | Ibiden Co., Ltd. | Semiconductor manufacturing and inspecting device |
| WO2002007195A1 (fr) * | 2000-07-19 | 2002-01-24 | Ibiden Co., Ltd. | Dispositif chauffant ceramique pour la fabrication/verification de semi-conducteurs, son procede de fabrication, et son systeme de fabrication |
| US20030062358A1 (en) * | 2000-07-19 | 2003-04-03 | Atsushi Ito | Semiconductor manufacturing/testing ceramic heater |
| EP1251551A1 (en) * | 2000-08-30 | 2002-10-23 | Ibiden Co., Ltd. | Ceramic heater for semiconductor manufacturing and inspecting equipment |
| JP2002076102A (ja) * | 2000-08-31 | 2002-03-15 | Ibiden Co Ltd | セラミック基板 |
| US20040035846A1 (en) * | 2000-09-13 | 2004-02-26 | Yasuji Hiramatsu | Ceramic heater for semiconductor manufacturing and inspecting equipment |
| JP2002160974A (ja) * | 2000-11-22 | 2002-06-04 | Ibiden Co Ltd | 窒化アルミニウム焼結体、窒化アルミニウム焼結体の製造方法、セラミック基板およびセラミック基板の製造方法 |
| JPWO2002043441A1 (ja) * | 2000-11-24 | 2004-04-02 | イビデン株式会社 | セラミックヒータ、および、セラミックヒータの製造方法 |
| US20030000938A1 (en) * | 2000-12-01 | 2003-01-02 | Yanling Zhou | Ceramic heater, and ceramic heater resistor paste |
| US6960743B2 (en) * | 2000-12-05 | 2005-11-01 | Ibiden Co., Ltd. | Ceramic substrate for semiconductor manufacturing, and method of manufacturing the ceramic substrate |
| US6485763B1 (en) * | 2001-05-17 | 2002-11-26 | 2002872 Ontario Limited Inc. | Shelf-stable, spreadable maple syrup composition |
| WO2002101816A1 (fr) * | 2001-06-06 | 2002-12-19 | Ibiden Co., Ltd. | Dispositif d'etalonnage de tranche |
| WO2003015157A1 (en) * | 2001-08-10 | 2003-02-20 | Ibiden Co., Ltd. | Ceramic joint body |
-
1999
- 1999-12-28 EP EP99961446A patent/EP1120829A4/en not_active Withdrawn
- 1999-12-28 US US09/806,477 patent/US6717116B1/en not_active Expired - Lifetime
- 1999-12-28 WO PCT/JP1999/007368 patent/WO2001013423A1/ja not_active Ceased
-
2003
- 2003-01-17 US US10/346,095 patent/US7084376B2/en not_active Expired - Lifetime
- 2003-09-17 US US10/663,681 patent/US20040060919A1/en not_active Abandoned
-
2004
- 2004-05-28 US US10/855,324 patent/US20040217105A1/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07183342A (ja) * | 1993-12-22 | 1995-07-21 | Nippon Telegr & Teleph Corp <Ntt> | 試料・探針間導通状態判知法 |
| JPH07297265A (ja) * | 1994-04-26 | 1995-11-10 | Shin Etsu Chem Co Ltd | 静電チャック |
| JPH0866071A (ja) * | 1994-08-19 | 1996-03-08 | Sony Corp | 静電吸着装置 |
| JPH10275524A (ja) * | 1997-03-31 | 1998-10-13 | Kyocera Corp | 耐プラズマ部材 |
| JPH10289944A (ja) * | 1997-04-16 | 1998-10-27 | Sony Corp | 静電吸着装置及び静電吸着方法 |
| JPH10338574A (ja) * | 1997-06-06 | 1998-12-22 | Ngk Insulators Ltd | 窒化アルミニウム基複合体、電子機能材料、静電チャックおよび窒化アルミニウム基複合体の製造方法 |
| JPH11111809A (ja) * | 1997-10-07 | 1999-04-23 | Innotech Corp | 搬送装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1120829A4 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770193A (zh) * | 2017-06-30 | 2020-02-07 | 株式会社美科 | 氮化铝烧结体及包括其的半导体制造装置用构件 |
| JP2020521706A (ja) * | 2017-06-30 | 2020-07-27 | ミコ セラミックス リミテッド | 窒化アルミニウム焼結体およびこれを含む半導体製造装置用部材 |
| US11508586B2 (en) | 2017-06-30 | 2022-11-22 | Mico Ceramics Ltd. | Aluminum nitride sintered body and member for semiconductor manufacuting apparatus comprising same |
| JP7181898B2 (ja) | 2017-06-30 | 2022-12-01 | ミコ セラミックス リミテッド | 窒化アルミニウム焼結体およびこれを含む半導体製造装置用部材 |
| US12550689B2 (en) | 2017-06-30 | 2026-02-10 | Mico Ceramics Ltd. | Aluminum nitride sintered body and member for semiconductor manufacturing apparatus comprising same |
| JP2020004751A (ja) * | 2018-06-25 | 2020-01-09 | 日本特殊陶業株式会社 | 静電チャック、および、静電チャックの製造方法 |
| JP7122174B2 (ja) | 2018-06-25 | 2022-08-19 | 日本特殊陶業株式会社 | 静電チャック、および、静電チャックの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030132217A1 (en) | 2003-07-17 |
| EP1120829A4 (en) | 2009-05-27 |
| US6717116B1 (en) | 2004-04-06 |
| EP1120829A1 (en) | 2001-08-01 |
| US20040060919A1 (en) | 2004-04-01 |
| US7084376B2 (en) | 2006-08-01 |
| US20040217105A1 (en) | 2004-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2001013423A1 (en) | Semiconductor production device ceramic plate | |
| US6639188B2 (en) | Ceramic heater | |
| KR20020092967A (ko) | 세라믹 기판 및 그 제조 방법 | |
| EP1321971A1 (en) | Ceramic substrate for semiconductor production and inspection | |
| US6884972B2 (en) | Ceramic plate for a semiconductor producing/inspecting apparatus | |
| EP1120997A1 (en) | Ceramic heater | |
| EP1340732A1 (en) | Aluminum nitride sintered body, method for producing aluminum nitride sintered body, ceramic substrate and method for producing ceramic substrate | |
| KR20030072324A (ko) | 세라믹 히터 및 세라믹 접합체 | |
| JP2001302330A (ja) | セラミック基板 | |
| JP3565496B2 (ja) | セラミックヒータ、静電チャックおよびウエハプローバ | |
| WO2001011921A1 (en) | Ceramic heater | |
| WO2001078455A1 (fr) | Plaque ceramique | |
| JP2001257200A (ja) | 半導体製造・検査装置用セラミック基板 | |
| JP2001223257A (ja) | 半導体製造・検査装置用セラミック基板 | |
| JP2001319967A (ja) | セラミック基板の製造方法 | |
| JP3186750B2 (ja) | 半導体製造・検査装置用セラミック板 | |
| JP2001130982A (ja) | 半導体製造装置用セラミック板 | |
| JP2001308163A (ja) | 半導体製造・検査装置用セラミック基板 | |
| JP2001358205A (ja) | 半導体製造・検査装置 | |
| JP2004172637A (ja) | 半導体製造・検査装置用セラミック基板 | |
| JP2003289027A (ja) | セラミック基板 | |
| JP2001319756A (ja) | セラミック基板 | |
| JPWO2001013423A1 (ja) | 半導体製造装置用セラミック板 | |
| JP2004088117A (ja) | ウエハプローバおよびウエハプローバに使用されるセラミック基板 | |
| JP2004214214A (ja) | セラミックヒータ |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 517424 Kind code of ref document: A Format of ref document f/p: F |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1999961446 Country of ref document: EP |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 09806477 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 1999961446 Country of ref document: EP |