WO2001029852A1 - Laminated body manufacturing method and laminated body pressurizing device - Google Patents
Laminated body manufacturing method and laminated body pressurizing device Download PDFInfo
- Publication number
- WO2001029852A1 WO2001029852A1 PCT/JP2000/007187 JP0007187W WO0129852A1 WO 2001029852 A1 WO2001029852 A1 WO 2001029852A1 JP 0007187 W JP0007187 W JP 0007187W WO 0129852 A1 WO0129852 A1 WO 0129852A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laminate
- producing
- elastic body
- pressing
- laminate according
- 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
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/02—Ceramics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/16—Capacitors
Definitions
- the present invention relates to a method of manufacturing a multilayer ceramic capacitor, for example, by laminating a plurality of sheet-like substances having irregularities on the surface, such as a dielectric sheet having electrodes formed on the surface, and pressing and bonding the same.
- the present invention relates to a method for manufacturing a laminated body and a laminate pressing apparatus, which uniformly presses even a sheet-like substance having a partially uneven surface to obtain a high-density laminated body. is there. Background art
- FIG. 4 is a partially cutaway perspective view of a general multilayer ceramic condenser, which includes a dielectric layer 1, an internal electrode 2, and an external electrode 3.
- a first laminated body was produced by alternately laminating a ceramic sheet produced using a ceramic dielectric material to be the dielectric layer 1 and a vehicle, and an internal electrode 2, and this first laminated body was produced.
- the upper and lower surfaces are sandwiched between metal press plates and pressurized in the air to integrate the ceramic sheet and the internal electrodes 2 to obtain a second laminate.
- external electrodes 3 are formed on the exposed end faces of the internal electrodes 2 to produce a multilayer ceramic capacitor.
- the internal electrodes 2 are patterned, and there is a problem when the number of stacked ceramic sheets (hereinafter referred to as an effective layer) sandwiched between the internal electrodes 2 is small.
- an effective layer the number of stacked ceramic sheets sandwiched between the internal electrodes 2
- the step due to the presence or absence of the internal electrode 2 will not allow sufficient pressure to be applied to the part without the internal electrode 2 by the method of pressing between metal press plates due to the step .
- the first laminate has a high density portion (the portion where the internal electrode 2 is present) and a low density portion (a portion where the internal electrode 2 is not present), which causes structural defects such as delamination. There was a problem of doing it. Disclosure of the invention
- the present invention provides a first step of laminating a plurality of sheet-like substances to produce a first laminate, and then opposing the first laminate. Between the rigid body and the elastic body such as rubber, or between the opposing elastic bodies and the elastic body, and pressurizes the second laminate.
- This is a method for manufacturing a laminated body having a second step of obtaining, by pressing the elastic body while following the surface shape of the first laminated body, it is possible to uniformly pressurize the entire first laminated body and increase the density. At the same time, the adhesive strength between the layers can be improved.
- a first embodiment of the present invention includes a first step of stacking a plurality of sheet-like substances having a partially uneven surface on a surface thereof to form a first laminate, and then forming the first laminate.
- a laminate can be obtained.
- the second aspect of the present invention is a method for producing the laminate of the first aspect, in which the elastic body has heat resistance, and the first laminate can be heated while being pressurized, so that the adhesion between the layers is improved. It can be done.
- a third aspect of the present invention is a method for producing a laminate of the first aspect, wherein the elastic body is thicker than the thickness of the first laminate, and the elastic body is deformed with pressurization. Since the body can press not only the upper surface but also the side surface of the first laminate, the pressure can be evenly applied regardless of the degree of parallelism of the press surface with the first laminate.
- a fourth aspect of the present invention is a method for producing a laminate according to the first aspect, wherein the size of the elastic body is larger than a contact surface with the first laminate, and the elastic body is formed into a first laminate by applying pressure. By following the surface and side shapes of the body, the first laminate can be pressed uniformly.
- a fifth aspect of the present invention is a method for producing a laminate according to the first aspect, wherein a ceramic sheet and an internal electrode layer are used as a sheet-like substance. It can be suppressed.
- a sixth aspect of the present invention is a method for producing a laminate according to the fifth aspect, wherein the ceramic sheet is formed using a polyolefin and an inorganic powder, and even if a highly porous sheet is used. However, the gas inside the first laminate can be removed, and the occurrence of structural defects can be suppressed.
- a seventh aspect of the present invention is a method for producing a laminate according to a sixth aspect, in which the first laminate is heated to T po ⁇ 30 or more when the melting point of polyolefin is T po ° C, The adhesive strength between the ceramic sheets can be improved, and the occurrence of structural defects can be suppressed.
- An eighth aspect of the present invention is a method for producing a laminate according to the first aspect, wherein a contact surface of the elastic body with the first laminate has non-adhesiveness to the laminate. At the time of attachment and detachment, the laminate can be prevented from being bonded to the elastic body and deformed.
- a ninth aspect of the present invention is a method for producing a laminate according to the first aspect, in which a planar non-adhesive having elasticity is interposed between an elastic body and a first laminate. It can be prevented from being deformed by bonding to the elastic body.
- a tenth aspect of the present invention is a method for producing a laminate according to the ninth aspect, wherein a surface of the non-adhesive is larger than a contact surface with the first laminate, wherein the first laminate is an elastic body. It can be more reliably prevented from adhering to the surface.
- the eleventh form of the present invention is a method for producing a laminate of the ninth form, in which the non-adhesive has heat resistance, and the first laminate can be heated while being pressed, so that the adhesive strength between the layers is increased. Can be improved.
- a twelfth aspect of the present invention is a method for producing a laminate of the first aspect, wherein the first laminate is pressed while the side surfaces of the first laminate are covered with a frame, The end of the body can be prevented from becoming curved.
- a thirteenth aspect of the present invention is a method for manufacturing a laminate of a ninth aspect using a frame having an inner peripheral shape larger than the outer peripheral shape of the first laminate, wherein the first laminate is formed as a frame. Deformation during storage in the body can be prevented.
- a fifteenth aspect of the present invention is a method for producing a laminate of the first or second aspect using an elastic frame, which is capable of following a side surface of the first laminate at the time of pressurization.
- the laminate can be pressed uniformly.
- a fifteenth aspect of the present invention is a method for manufacturing a laminate of the twelfth aspect, in which the height of the frame is equal to or less than the thickness of the first laminate, and the upper end of the first laminate is provided. Can be reliably applied.
- a sixteenth aspect of the present invention is a method for producing a laminate of the twelfth aspect using a frame having heat resistance, and can heat the first laminate while applying pressure.
- a seventeenth aspect of the present invention is a method for producing a multilayer body according to the first aspect, which is performed by holding the first multilayer body in a reduced-pressure atmosphere, in which gas in the first multilayer body is easily removed. Thus, a laminate having few structural defects can be obtained.
- An eighteenth aspect of the present invention is a method for producing a laminate according to the seventeenth aspect, wherein the pressurizing is performed after removing the gas in the first laminate, and further reduces the occurrence of structural defects. Can be.
- the pressure around the first laminate is reduced to 80 hPa or less in order to remove gas in the first laminate to the extent that structural defects do not occur.
- This is a method for producing a laminate of the fourteenth mode in which pressure is applied, and the occurrence of structural defects can be further reduced.
- the opposing elastic bodies are provided inside the box-shaped rigid body of the first pressing unit and inside the box-shaped rigid body of the second pressing unit.
- a second pressurizing section are arranged so that the elastic body faces each other, and at least one of the first and second pressurizing sections is movable.
- a laminated body pressing apparatus according to the twenty-fourth aspect, wherein a frame is provided on an outer peripheral portion of a box-shaped rigid body opposed to the first pressing part and the second pressing part.
- a plurality of laminates can be pressurized at once by supporting a support provided with the first laminate on both sides with this frame and applying pressure.
- a twenty-second aspect of the present invention is the laminate pressing apparatus according to the twenty-first aspect in which an exhaust port is provided in each of the first pressurizing unit and the second pressurizing unit. It can be pressurized while holding.
- a support member is provided on an inner wall surface of a rigid body to support an elastic body, and the inner wall surface and the elastic body are in a floating state except for the support part. Since the elastic body can be deformed when pressurized, it is possible to prevent unnecessary stress from being applied to the laminate.
- FIG. 1 is a cross-sectional view of a pressurizing step of a first laminate in a pressurized state using a laminate press in Embodiment 1 of the present invention
- FIG. 2 is a laminate press in Embodiment 1.
- FIG. 3 is a cross-sectional view of the pressurizing process before pressurizing
- FIG. 3 is a cross-sectional view of the pressurizing process at the time of starting pressurization of the laminate pressing device in Example 1
- FIG. 4 is a general laminating process.
- FIG. 5 is a partially cutaway perspective view of a ceramic capacitor.
- FIG. 5 is a cross-sectional view of a pressurizing step of a first laminate in a state before pressurization using a laminate press according to a second embodiment of the present invention.
- FIG. 7 is a cross-sectional view of a pressurizing process at the start of pressurization of the laminate pressurizing device according to the second embodiment.
- FIG. FIG. 8 is a top view of the first pressing unit 21 in FIG. 5, and
- FIG. 9 is a pressurization before starting pressurization using the multilayer pressurizing apparatus according to the third embodiment of the present invention.
- Process FIG. 10 is a cross-sectional view of the pressurizing process at the start of pressurization of the laminate pressurizing apparatus according to the third embodiment.
- FIG. 10 is a cross-sectional view of the pressurizing process at the start of pressurization of the laminate pressurizing apparatus according to the third embodiment.
- FIG. 11 is a cross-sectional view of the pressurized state of the laminate pressurizing apparatus according to the third embodiment.
- FIG. 12 is a cross-sectional view of a pressurizing step in a state before pressurizing using the laminate pressurizing apparatus according to the fourth embodiment of the present invention
- FIG. FIG. 14 is a cross-sectional view of a pressurizing step at the start of pressurization of the laminate pressurizing apparatus.
- FIG. 14 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate using the laminate pressurizing apparatus in Example 4.
- FIG. 15 is a cross-sectional view of a pressurizing step in a pressurized state of a laminate using a laminate pressurizing apparatus according to Embodiment 5 of the present invention.
- FIG. 16 is a cross-sectional view of a laminate in Embodiment 6 of the present invention.
- FIG. 17 is a cross-sectional view of a pressurizing step of the laminate pressing apparatus in a state before pressurization using a body pressing apparatus.
- FIG. , FIG. 18 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate pressing device in Embodiment 6, and
- FIG. 19 is a cross-sectional view of a laminate pressing device in another embodiment of the present invention. .
- FIG. 1 is a cross-sectional view of a pressurizing step of a first laminate in a pressurized state using a laminate press in Embodiment 1 of the present invention, where 10 is a lower rigid body, and 11 is a copper plate.
- Reference numeral 12 denotes a stainless steel plate
- reference numeral 13 denotes a first laminate obtained by alternately laminating a ceramic sheet and an internal electrode manufactured using a ceramic dielectric material to be a dielectric layer and a vehicle
- reference numeral 15 denotes a laminate.
- Polyethylene terephthalate film hereinafter referred to as PET film
- 16 is an upper rigid body
- 17 is a picture frame
- 18 is an elastic body
- 19 is an exhaust port.
- Lower rigid body 10 and copper plate 1 1 make up first pressurized section 21, upper rigid body 16, picture frame 17, elastic body 18 and exhaust port 19 make up second pressurized section 22 are doing.
- FIG. 2 is a cross-sectional view of a pressurizing step before pressurization of the laminate pressurizing apparatus in Example 1
- FIG. 3 is a pressurizing step at the start of pressurization of the laminate pressurizing apparatus in Example 1.
- FIG. 4 is a partially cutaway perspective view of a general laminated ceramic capacitor, where 1 is a dielectric layer, 2 is an internal electrode, and 3 is an external electrode. Electrode.
- 1 is a dielectric layer
- 2 is an internal electrode
- 3 is an external electrode. Electrode.
- a ceramic material for forming a dielectric layer 1 is formed.
- This ceramic sheet has a porosity of 50% or more and a very low density.
- a metal paste serving as the internal electrode 2 is prepared by mixing nickel powder and a vehicle such as a solvent, a resin, and a plasticizer.
- the metal paste is printed on the ceramic sheet to form the internal electrodes 2 having a desired pattern, thereby producing a ceramic sheet with internal electrodes.
- a plurality of ceramic sheets are laminated on a stainless steel plate 12 serving as a support to form a protective layer, and a ceramic sheet with internal electrodes is formed thereon such that the internal electrodes 2 and the ceramic sheets alternate.
- a plurality of ceramic sheets are laminated again to form a protective layer to obtain a first laminate.
- the melting point of the polyethylene is T pe ° C, as shown in Fig. 2
- the polyethylene was heated on the lower rigid body 10 which had been heated in advance to a temperature not lower than the decomposition temperature of polyethylene by not less than T pe-3 O :.
- No copper plate 11 is placed, the first laminate 13 is placed on the copper plate 11 together with the stainless steel plate 12, and the PET film 15 is placed on the upper surface.
- the second pressing portion 22 is lowered, and an elastic frame 17 provided so as to surround the lower surface of the pressing portion 22 is attached to the first pressing portion. Press.
- the first The first laminate 13 is confined in a space surrounded by the pressurizing unit 21 and the second pressurizing unit 22.
- the space is depressurized by exhausting air from an exhaust port 19 (a portion shown by a dotted line in the figure) provided inside the second pressurizing section 22, and the inside of the first laminate 13 is reduced. Of gas.
- the elastic body 18 heat-resistant temperature 18
- the elastic body 18 which was previously heated to a temperature not lower than the decomposition temperature of polyethylene at Tpe—30 ° C. or higher. (Ot: or more) is further moved downward to pressurize the first laminate 13.
- the upper surface and the side surface of the first laminated body 13 are covered with the elastic body 18 and the lower surface thereof is covered with the stainless steel plate 12 and pressurized, so that isostatic pressing can be performed.
- unevenness is generated on the upper surface of the first laminate 13 depending on the presence or absence of the internal electrode 2.
- the elastic body 18 is pressurized while being deformed in accordance with the unevenness, the application depending on the presence or absence of the internal electrode 2 is performed. Fluctuations in the pressure state can be suppressed. Accordingly, the first laminate 13 can obtain a second laminate having a small variation in density regardless of the portion where the internal electrode 2 exists and the portion where the internal electrode 2 does not exist.
- the polyethylene in the first laminate 13 is softened, and between the ceramic sheet and the internal electrodes 2 and between the ceramic sheets. Is fused. By this action, the adhesive strength between the layers is improved, and an integrated second laminate is obtained.
- Tpe heating temperature
- the second laminate is cut into a desired shape, and degreased and fired.
- a sintered body is obtained in which the dielectric layer 1 mainly containing barium titanate and the internal electrode 2 mainly containing nickel are simultaneously sintered.
- external electrodes 3 made of copper or the like are formed on the exposed both end surfaces of the internal electrodes 2 of the sintered body to obtain a multilayer ceramic capacitor shown in FIG.
- the internal electrode 2 When the internal electrode 2 is formed by printing a metal paste as in the present embodiment, when the first laminate 13 is heated using the lower rigid body 10 and the elastic body 18, the internal electrode 2 If the plasticizer excessively scatters, the internal electrode 2 becomes hard and brittle, the bonding force between the ceramic sheet and the internal electrode 2 decreases, and structural defects are caused during firing.
- the heating temperature is preferably such that the plasticizer is not excessively scattered. Therefore, in this case, it is desirable that the lower rigid body 10 and the elastic body 18 be heated in advance to 110 to 170, preferably to 144 to 165X.
- Example 1 a stainless steel plate 12 having a first laminated body 13 formed thereon was placed on a lower rigid body 10 via a copper plate 11.
- the reason for this is that the lower rigid body 10 is Since the polyethylene in 13 is heated above the temperature at which it begins to shrink, if the stainless steel plate 12 is placed directly on the lower rigid body 10, heat is transferred too quickly to the first laminate 13, and pressure is applied. Before this, the first laminate 13 may shrink, which may lead to a structural defect. Therefore, heat is transmitted from the lower rigid body 10 and the elastic body 18 to the first laminated body 13 after pressurization by installing the copper plate 11 having an appropriate thickness.
- copper since copper has excellent heat conductivity, heat from the lower rigid body 10 can be uniformly conducted to the first laminate 13 in the plane, so that the temperature control of the first laminate 13 can be achieved. The accuracy of the is improved.
- any plate-shaped rigid body may be used as long as the material can control the temperature of the first laminate 13. Further, if the lower rigid body 10 is not heated in advance or is heated to a temperature lower than the temperature at which the polyethylene starts to shrink, the copper plate 11 does not need to be used, and the lower rigid body 10 is not heated.
- the stainless plate 12 on which the laminated body 13 of 1 is formed may be directly placed.
- FIG. 5 is a cross-sectional view of a step of pressing the first stacked body in a pre-pressing state using the stacked body pressing apparatus according to the second embodiment of the present invention
- FIG. FIG. 7 is a cross-sectional view of a pressurizing step at the start of pressurization of the pressurizing device.
- FIG. 7 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate pressing device in the second embodiment.
- FIG. 8 is a plan view of the first pressurizing unit 21 before the PET film 15 is installed in the pressurizing step of FIG. 5, 14 is a frame, and others are the same as those in Example 1. Therefore, the same reference numerals are given and the description is omitted.
- the difference from the first embodiment is that a frame 14 having elasticity is installed so as to cover the side surface of the first laminate 13 and pressure is applied.
- a first laminate 13 is formed on a stainless steel plate 12 in the same manner as in Example 1.
- a frame 14 made of an elastic material is provided on the outer peripheral portion so as to cover the side surface of the first laminate 13.
- the stainless steel plate 12 and the first laminate 13 are placed on the lower rigid body 10 via the copper plate 11 and the first laminate is formed as shown in FIG.
- a frame material 14 is placed on the outer periphery of the body 13, and the upper surface is covered with a PET film 15.
- the second pressing unit 22 is lowered, and the forehead $ 17 is pressed against the first pressing unit 21.
- the first stacked body 13 is confined in a space surrounded by the first pressing unit 21 and the second pressing unit 22.
- the gas inside the first stacked body 13 is removed by exhausting the gas in the space through the exhaust port 19.
- the elastic body 18 is moved further downward, and the first laminate 13 is pressed from above.
- the space where the first stacked body 13 is present is kept in an exhausted state so that gas does not enter the inside of the first stacked body 13.
- Lower rigid body 10 and elastic body 18 After the first laminate 13 is pressed and sandwiched to obtain a second laminate by being integrated, the pressurization and heating are terminated, and the resultant is gradually cooled. Thereafter, the second laminate is cut, degreased, fired, and formed with the external electrodes 3 in the same manner as in Example 1 to obtain the multilayer ceramic capacitor shown in FIG.
- the lower rigid body 10 and the elastic body 1.8 are preliminarily heated to at least 11 Ot (Tpe-3Ot :) and lower than the decomposition temperature of polyethylene. It is necessary to transfer this heat to the first laminate 13 immediately upon pressing.
- the elastic body 18 In order to reliably apply the pressure to the first laminate 13, the elastic body 18 needs to have a certain degree of hardness. However, if the hardness of the elastic body 18 is too high, it becomes difficult to apply pressure along the surface shape of the first laminate 13 at the time of pressurization. In particular, since this tendency is remarkable at the upper end portion, the upper end portion of the second laminate may be curved. Therefore, the internal electrode 2 is deformed at the upper end portion, and cannot be used as a multilayer ceramic capacitor having desired characteristics.
- the end of the frame 14 by covering the side surface of the first laminate 13 with the frame 14, the end of the frame 14 apparently becomes the end of the first laminate 13.
- the height of the frame 14 is the same as the height of the first laminate 13.
- the height of the frame 14 needs to be lower than the height of the first laminate 13. In other words, it is desirable that the height of the end of the first stacked body 13 should not be curved.
- the frame 14 needs to have heat resistance higher than the temperature at which the first laminate 13 is heated.
- FIG. 9 is a cross-sectional view of a pressurizing step before starting pressurization using the laminate pressurizing apparatus according to the third embodiment of the present invention.
- FIG. FIG. 11 is a cross-sectional view of a pressurizing step at the start, and FIG. 11 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate pressing apparatus in the third embodiment.
- the first pressing section 30 is composed of a lower rigid body 31 and an elastic body 32
- the second pressing section 33 is composed of an upper rigid body 34 and an elastic body 35.
- Reference numeral 36 denotes a picture frame
- reference numeral 37 denotes an exhaust port, and other components are the same as those in the first embodiment.
- the first pressing section 30 is a box-shaped lower rigid
- the elastic body 32 is filled in the concave part of the body 3 1, and the second pressing part 33 is provided in the concave part of the upper rigid body 34 having a box shape and having an exhaust port 37 inside.
- the elastic frame 36 is provided on the outer periphery of the lower surface of the upper rigid body 34.
- a support portion is provided on a part of the inner wall surface of the lower rigid body 31 and the upper rigid body 34 to support the elastic members 32, 35, and other than the support portion, the inner wall surface and the elastic members 32, 35 Means a floating state, and increases the degree of freedom of deformation of the elastic bodies 32 and 35 during pressurization, thereby preventing unnecessary stress from being applied to the first laminate 13.
- the pressure inside the space surrounded by the first pressurizing section 30 and the second pressurizing section 33 is reduced, and the gas inside the first laminate 13 is discharged to the first It is removed by exhausting through an exhaust port 37 (part shown by a dotted line in the figure) provided inside the pressurizing section 33 of 2.
- a first laminate 13 was formed on a stainless steel plate 12 in the same manner as in Example 1, and then the first laminate 13 was separated from the stainless steel plate 12 as shown in FIG.
- the PET film 15 is placed on the elastic body 32 of the laminate pressing device via the PET film 15, and the PET film 15 is further placed on the first laminate 13.
- the first pressing portion 30 is raised and pressed against the elastic frame 36 provided on the second pressing portion 33.
- the first stacked body 13 is confined in a space surrounded by the first pressing unit 30 and the second pressing unit 33.
- the space is depressurized by exhausting air from an exhaust port 37 (a portion shown by a dotted line in the figure) provided inside the second pressurizing section 33, and the inside of the first laminate 13 is reduced.
- the gas generated in is discharged. Also in Example 3, when the atmospheric pressure became about 13 hPa or less, the gas inside the first laminate 13 could be almost completely removed.
- the elastic body 35 made of silicon rubber having a heat resistant temperature of 180 or more is moved downward, and pressurization is started from above the first laminate 13.
- the elastic bodies 32 and 35 need to be kept at a temperature at which the polyethylene does not deform, that is, a lower temperature at Tpe-30.
- the elastic bodies 32 and 35 are heated to a temperature equal to or higher than Tpe ⁇ 30 and lower than the decomposition temperature of polyethylene, so that the polyethylene in the first laminated body 13 is softened, and the ceramic sheet and the inner part are heated. By fusing between the unit electrodes 2 and between the ceramic sheets, an integrated second laminate is obtained.
- the pressure is applied in the same direction.
- irregularities exist on the surface of the first laminated body due to the presence or absence of the internal electrode 2 as in Examples 1 and 2, but the elastic bodies 32 and 35 are made to conform to the irregularities, and Variations in the pressurized state of the first laminate 13 can be prevented.
- pressurize During this time, the inside of the space where the first laminate 13 is present is kept under reduced pressure to prevent gas from entering the inside of the first laminate 13.
- the pressing and heating are terminated, and the second laminated body is produced by gradually cooling. .
- the entire outer peripheral surface of the first laminated body 13 is covered with elastic bodies 32 and 35 and pressurized.
- the step caused by the presence or absence of the internal electrode 2 of the body 13 can be more completely absorbed, and a second laminate having a uniform and small density can be obtained.
- a frame that covers the side surface of the first laminate 13 as shown in the second embodiment the same effect as in the second embodiment can be obtained.
- FIG. 12 is a cross-sectional view of a pressurizing step in a state before pressurization using the laminate pressurizing apparatus according to the fourth embodiment of the present invention
- FIG. 13 is a laminate pressurizing apparatus according to the fourth embodiment
- FIG. 14 is a cross-sectional view of a pressurizing step at the start of pressurizing
- FIG. 14 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate pressing apparatus in the fourth embodiment.
- Reference numeral 40 denotes a stainless steel plate, and the same components as those in Examples 1 to 3 are denoted by the same reference numerals and description thereof will be omitted.
- the difference from the laminate pressurizing apparatus used in Example 3 is that the exhaust port 37 is provided in both the first pressurizing section 30 and the second pressurizing section 33, and the frame 36 is also the first pressurizing section.
- the structure is such that the stainless steel plate 40 can be supported by the frame 36 by being provided in both the pressurizing section 30 and the second pressurizing section 33.
- the first laminated body 13 is provided on both sides of the stainless steel plate 40 so as to face each other with the stainless steel plate 40 interposed therebetween.
- the first laminate 13 is formed in the same manner as in the first embodiment.
- the PET film 15 is placed on the surface of the first laminate 13. Next, as shown in FIG.
- the stainless steel plate 40 on which the first laminate 13 is placed is supported between the first pressurizing section 30 and the second pressurizing section 33 by a support (not shown). ⁇ ) Fix using.
- the first pressing portion 30 and the second pressing portion 33 are moved to sandwich the outer peripheral portion of the stainless steel plate 40 between the frame 36 and the first pressing portion.
- the stacked body 13 is enclosed in a space surrounded by the first pressing part 30 or the second pressing part 33 and the stainless steel plate 40.
- the gas in the space is exhausted through the exhaust port 37, and the space is depressurized to remove the gas inside the first stacked body 13 by suction.
- the first laminate 13 is pressurized with the elastic bodies 32 and 35 which have been heated to Tpe ⁇ 30 * C or more in advance.
- the upper and side surfaces of the first laminate 13 are made of elastic bodies 32 and 35, and the lower surface is made of a stainless steel plate.
- iso-directional pressing can be performed.
- unevenness occurs on the pressurized surface of the first laminate 13 depending on the presence or absence of the internal electrode 2.However, since the elastic bodies 32 and 35 can be pressurized along the unevenness, the pressurized state varies. Can be prevented. Therefore, the first laminate 13 can obtain the second laminate having a uniform density regardless of the presence or absence of the internal electrode 2.
- the polyethylene in the first laminate 13 is softened, and the space between the ceramic sheet and the internal electrodes 2 and between the ceramic sheets is reduced.
- an integrated second laminate is formed with improved adhesive strength.
- pressurization and heating are completed, and the mixture is gradually cooled to obtain a second laminate.
- cutting, degreasing, firing, and forming the external electrodes 3 are performed in the same manner as in Example 1 to produce the multilayer ceramic capacitor shown in FIG.
- the space in which the first laminate 13 is present is maintained in a reduced pressure state during pressurization to prevent gas from entering the inside of the first laminate 13. ing.
- the elastic bodies 32 and 35 are preliminarily heated in the same manner as in Example 3, and this heat is transferred to the first laminate 13 immediately upon pressurization, and the polyethylene in the first laminate 13 is heated. Is softened to improve the adhesive strength between the ceramic sheets and between the ceramic sheet and the internal electrode 2.
- two first laminates 13 can be pressed at a time. Since this pressing step takes about 5 minutes, the productivity can be greatly improved by pressing a plurality of first laminates 13 at once.
- the first laminate 13 has the same shape on the front and back surfaces. Furthermore, when the elastic bodies 32 and 35 are heated and used, the elastic bodies 32 and 35 come into contact with the first laminated body 13 at the same time and separate at the same time, thereby suppressing variations in the heating state. It is desirable.
- FIG. 15 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate using the laminate pressurizing apparatus according to the fifth embodiment of the present invention.
- the same components as those in the first to fourth embodiments are the same. Numbers are assigned and explanations are omitted.
- the fifth embodiment differs from the fourth embodiment in that a frame 14 is provided so as to cover the outer peripheral portion of the side surface of the first laminate 13 as shown in FIG. . Except for this, it is the same as Example 4. Also in the fifth embodiment, similarly to the second embodiment, the upper end portion of the first laminate 13 is prevented from becoming a curved surface at the time of pressurization, and compared with the first embodiment, the second laminate 13 has a second shape. To make a laminate it can.
- FIG. 16 is a cross-sectional view of a pressurizing step of a laminate in a state before pressurization using the laminate pressing device according to the sixth embodiment of the present invention.
- FIG. 17 is a laminate pressing device according to the sixth embodiment.
- FIG. 18 is a cross-sectional view of a pressurizing step in a state where a laminate is started, and
- FIG. 18 is a cross-sectional view of a pressurizing step in a pressurized state of the laminate pressing apparatus in Example 6.
- the third pressing portion 50 includes a middle rigid body 51 and a pair of elastic bodies 52.
- the same components as those in the first to fifth embodiments are denoted by the same reference numerals, and description thereof is omitted.
- the third pressing portion 50 has concave portions on the upper and lower surfaces, an elastic body 52 is filled in each concave portion, and a frame 36 is provided on the upper and lower outer peripheral surfaces of the middle rigid body 51. An exhaust port 37 corresponding to each concave portion is provided.
- the frame 36 is located at a position facing the frame 36 provided in the first pressing section 30 or the second pressing section 33.
- a third pressing portion 50 is provided. is there. That is, in the fourth embodiment, two first stacked bodies 13 can be simultaneously pressed, but in the sixth embodiment, four first stacked bodies 13 can be simultaneously pressed.
- the first laminates 13 are formed on both surfaces of the stainless steel plate 40 in the same manner as in the fourth embodiment.
- the PET film 15 is placed on the first laminate 13 so as to cover the surface and side surfaces of the first laminate 13 when pressurized.
- the first pressing portion 30 and the second pressing portion 33 are moved to sandwich the outer peripheral portion of the stainless steel plate 40 from above and below with the frame 36.
- the first laminated body 13 is confined in a space surrounded by the first pressing part 30, the second pressing part 33, the third pressing part 50, and the stainless steel plate 40.
- the pressure in each space is reduced through the exhaust port 37, and the gas generated from the inside of the first laminate 13 is sucked and removed.
- the first laminated body 1 was formed of elastic bodies 32, 35, and 52, which were previously heated to a temperature of Tpe ⁇ 30 or higher and lower than the decomposition temperature of polyethylene. Press 3 At this time, the upper and side surfaces of the first laminate 13 are covered with elastic bodies 32, 35, and 52, and the lower surface is covered with a stainless steel plate 40, and pressurized. it can. However, the presence / absence of the internal electrode 2 causes irregularities on the contact surface of the first laminate 13 with the elastic members 32, 35, and 52, but the elastic members 32, 35, and 52 are deformed. By doing so, pressure can be applied along these irregularities, Fluctuation of the pressurized state can be prevented. Therefore, regardless of the presence or absence of the internal electrode 2, the first laminate 13 can provide a second laminate having a small variation in density and good adhesion between layers.
- the polyethylene in the first laminate 13 is softened, and the polyethylene is softened between the ceramic sheet and the internal electrodes 2 and the ceramic.
- an integrated second laminate is obtained.
- cutting, degreasing, firing, and formation of the external electrode 3 are performed in the same manner as in Example 1 to obtain the multilayer ceramic capacitor shown in FIG.
- the space in which the first laminate 13 exists is maintained in a reduced pressure state so that no gas enters the inside of the first laminate 13. Like that.
- the productivity can be further improved as compared with the fourth embodiment.
- the first laminate 13 has the same shape and is provided on both surfaces of the stainless steel plate 40. Further, when the elastic members 32, 35, and 52 are heated and used, the elastic members 32, 35, and 52 are made of all of the first laminates 13 to suppress variations in the pressurized state. It is desirable to be in contact with and to be separated at the same time.
- the same effect as that of the second embodiment can be obtained by pressing the outer peripheral portion of the side surface of the first stacked body 13 with the frame body 14 and applying pressure.
- an elastic body 61 is provided inside a frame-shaped middle rigid body 60 as shown in FIG.
- the structure of the third pressing portion 62 provided with a frame 36 corresponding to the frame 36 provided on the first and second pressing portions 30 and 33 on the outer peripheral upper and lower surfaces may be adopted.
- the middle rigid body has a through hole at the top and bottom, and an elastic body is inserted into it.
- the laminate was formed using a ceramic sheet comprising polyethylene, which is a kind of polyolefin, and dielectric powder, which is an inorganic powder. The same effect can be obtained for a ceramic sheet formed by using an inorganic powder.
- the effect of the present invention is greater for ceramic electronic components having a higher porosity of ceramic sheets and a larger number of laminated layers.
- excellent effects can be obtained when a ceramic sheet having a porosity of 30% or more is used or when the number of effective layers of the first laminate 13 is 50 or more.
- a multilayer ceramic capacitor has been described, but a ceramic sheet such as a multilayer Paris capacitor, a multilayer thermistor, a multilayer coil, a ceramic multilayer substrate, a ceramic filter, etc., and the internal electrode 2 are laminated.
- a similar effect can be obtained in a ceramic electronic component.
- the ceramic sheet and internal electrodes 2 are pre-pressed to such an extent that lamination misalignment does not occur when pressure is applied later. It is preferable to keep it. For this reason, the first laminated body being manufactured is heated in a temperature range from room temperature to a temperature at which the plasticizer in the internal electrode 2 does not scatter excessively, while being pressurized during lamination, and the vehicle included in the internal electrode 2 is heated. This softens the non-volatile components such as resin and plasticizer, and improves the adhesion between the internal electrode 2 and the ceramic sheet.
- the first laminate 13 may be pressurized at atmospheric pressure.However, when there is no gas inside the first laminate 13 at the time of pressurization, it is preferable that no gas is present between the layers. Integrally, the occurrence of structural defects can be prevented. Therefore, it is desirable to remove the gas inside the first laminate 13 before pressurizing, and to keep the first laminate 13 under reduced pressure even during pressurization.
- the pressure of the space where the first laminate 13 exists is set to a pressure lower than the atmospheric pressure before and during pressurization, preferably 80 hPa or less, more preferably 13 hPa or less. It is desirable to remove the gas inside the first stacked body 13 to such an extent as not to cause a structural defect.
- the pressing force when pressing the first laminated body 13 is set to 4 MPa to 2 OMPa, preferably 5 MPa to 9 MPa, whereby the integrated body can be surely integrated.
- the lower rigid body 10 and the elastic bodies 18, 32, 35, and 52 be preheated to 110 to 170 ⁇ , preferably to 144 to I 65. .
- the lower rigid body 10 and the elastic bodies 18, 32, 35, and 52 have the melting point of polyolefin as T po. It is desirable to heat in advance to a temperature lower than the decomposition temperature. That is, in each of the above-described embodiments, the first laminate 13 is heated to a temperature not lower than the decomposition temperature of polyolefin over T po ⁇ 30 to soften the internal polyolefin, thereby reducing the amount of ceramics and ceramics. And the internal electrode 2 can have improved adhesive strength.
- the first laminate 13 cannot be maintained in a desired shape. It is necessary to keep the heat temperature from rising.
- the lower rigid body 10, the elastic bodies 18, 32, 35, 52, and the frame body 14 are formed of the first laminated body 13 so as not to adversely affect the first laminated body 13. It is necessary to have heat resistance higher than the heating temperature (18 or more in each of the above embodiments). Further, it is desired that the lower rigid body 10 and the elastic bodies 18, 32, 35, 52 can control the heating temperature so that the first laminate 13 is uniformly heated. Good.
- the degreasing of the second laminate is preferably performed in the following order: first, the plasticizer is removed, and then the temperature is increased to remove the resin.
- the reason is that, despite the prevention of the occurrence of structural defects in the pressurizing step, when heated at once, a new compound is formed with the plasticizer and the resin, and remains in the second laminate even after degreasing. I do. This is because during the firing process, structural defects such as delamination occur during the process in which this compound burns and is removed from the second laminate, thereby increasing the incidence of short-circuit defects. Further, conditions for degreasing and firing are set so that nickel serving as the internal electrode 2 is not excessively oxidized.
- the surface of the elastic members 18, 32, 35, 52 in contact with the first multilayer body 13 is larger than the first multilayer body 13, and the thickness is also larger.
- the stainless steel plates 12 and 40 were used as the support when the first laminate 13 was manufactured, but other rigid bodies may be used. Further, after pressing, the stainless steel plates 12 and 40 and the first multilayer body 13 are formed so that the second multilayer body can be easily separated from the stainless steel plates 12 and 40. It is preferable to provide a release layer or the like between the two.
- the internal electrode 2 was formed by printing a metal paste on a ceramic sheet. However, the same effect can be obtained by producing the internal electrode 2 by a thin film forming method such as vapor deposition and sputtering.
- the effect of softening the resin and the plasticizer in the internal electrode 2 in the laminating step to improve the adhesion to the ceramics cannot be expected. Therefore, when it is necessary to improve the adhesiveness in the laminating step, it is desirable to form an adhesive layer made of an organic component on the surface of the internal electrode 2. It is necessary that this adhesive layer is not burned by firing and does not affect the characteristics of the multilayer ceramic capacitor.
- the picture frames 17 and 36 are made of a flexible material such as silicon rubber so that outside air can be prevented from entering the space in which the first laminate 13 is confined.
- pressurization through the PET film 15 requires a thickness and a thickness that can follow the irregularities of the first laminate 13 during pressurization.
- a PET film 15 having a thickness of 75 jm or less is used.
- a release layer or the like may be provided on the surface of the PET film 15 in order to further reduce the adhesiveness with the first laminate 13 or the elastic bodies 18, 32, 35, 52.
- a release layer or the like may be provided on the surface of the PET film 15 in order to further reduce the adhesiveness with the first laminate 13 or the elastic bodies 18, 32, 35, 52.
- the elastic members 18, 32, 35, and 52 are supported on the inner wall surfaces of the upper rigid members 16, 34, the lower rigid member 31, and the middle rigid member 51, which accommodate the elastic members, by supporting portions (not shown). Except for the support portion, the inner wall surface is in a floating state. With this configuration, the degree of freedom of deformation of the elastic members 18, 32, 35, and 52 at the time of pressurization is increased, and it is possible to prevent unnecessary force from being applied to the first laminate 13.
- the rubber hardness is set to 80 degrees or less, preferably 75 degrees or less.
- the first laminate must be pressed in the same direction, and
- the rubber hardness is Hs 40 to 80 degrees, preferably 45 to 75 degrees.
- the first laminate 13 formed by using a ceramic sheet made of another inorganic powder and an organic material also has the following characteristics.
- the first laminate formed using a plastic sheet the first laminate can be maintained in a desired shape and the temperature at which the organic material is softened is increased in order to improve the adhesive strength between the ceramic sheets. It is desirable to heat.
- a plurality of sheet-like substances having a partially uneven surface are laminated, and this is laminated between an opposing rigid body and an elastic body such as rubber, or between an opposing elastic body and an elastic body.
- This is a method of manufacturing a laminated body by sandwiching, pressing, and unifying.
- the elastic body follows the surface shape of the laminated body and pressurizes it so that the entire laminated body can be uniformly pressurized.
- the adhesive strength between layers can also be improved. Further, the adhesive force between the layers can be enhanced by heating at the same time as the pressurization, and a laminate having a low porosity can be obtained by reducing the pressure in the pressurized space.
- the manufacturing method of the laminated body according to the present invention includes a ceramic formed by laminating a ceramic sheet and the internal electrode 2 such as a laminated ceramic capacitor, a laminated varistor, a laminated ceramic, a laminated coil, a ceramic multilayer substrate, a ceramic filter, and the like. The effect is significant in the manufacture of electronic components.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Ceramic Capacitors (AREA)
- Laminated Bodies (AREA)
- Thermistors And Varistors (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00966531A EP1158549A4 (en) | 1999-10-18 | 2000-10-17 | LAMINATE BODY MANUFACTURE AND PRESSURE DEVICE |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29507999 | 1999-10-18 | ||
| JP11/295079 | 1999-10-18 | ||
| JP2000-237055 | 2000-08-04 | ||
| JP2000237055A JP4759792B2 (ja) | 1999-10-18 | 2000-08-04 | 積層体加圧装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001029852A1 true WO2001029852A1 (en) | 2001-04-26 |
Family
ID=26560111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2000/007187 Ceased WO2001029852A1 (en) | 1999-10-18 | 2000-10-17 | Laminated body manufacturing method and laminated body pressurizing device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1158549A4 (ja) |
| JP (1) | JP4759792B2 (ja) |
| KR (1) | KR100474646B1 (ja) |
| CN (1) | CN1207739C (ja) |
| TW (1) | TW463189B (ja) |
| WO (1) | WO2001029852A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670531A (zh) * | 2022-04-07 | 2022-06-28 | 刘苏平 | 一种电加热钢板层压方法及其层压机 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4759792B2 (ja) * | 1999-10-18 | 2011-08-31 | パナソニック株式会社 | 積層体加圧装置 |
| TW558727B (en) | 2001-09-19 | 2003-10-21 | Matsushita Electric Industrial Co Ltd | Manufacturing method of ceramic electronic components and its manufacturing equipment |
| KR100616539B1 (ko) * | 2004-03-31 | 2006-08-30 | 삼성전기주식회사 | 적층 세라믹 캐패시터 적층장치 및 이를 이용한 적층세라믹 캐패시터의 제조방법 |
| JP2007227889A (ja) * | 2006-01-24 | 2007-09-06 | Tdk Corp | 積層セラミック電子部品の製造方法およびセラミックグリーンシートの積層装置 |
| KR100799858B1 (ko) | 2006-10-26 | 2008-01-31 | 삼성전기주식회사 | 적층 세라믹 기판 소성용 가압로더 및 이를 이용한 적층세라믹 기판 제조방법. |
| JP6379357B2 (ja) * | 2013-03-25 | 2018-08-29 | パナソニックIpマネジメント株式会社 | 断熱シートおよびこれを用いた冷却構造 |
| JP6936158B2 (ja) * | 2018-01-30 | 2021-09-15 | 日本特殊陶業株式会社 | 圧着積層体の製造方法及び圧着積層体の製造装置 |
| JP7797166B2 (ja) * | 2021-10-27 | 2026-01-13 | 日機装株式会社 | 圧着装置及び圧着方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687311A (en) * | 1979-12-17 | 1981-07-15 | Matsushita Electric Industrial Co Ltd | Method of manufacturing laminated ceramic condenser |
| JPS6317511A (ja) * | 1986-07-10 | 1988-01-25 | 株式会社村田製作所 | セラミツク体の成形方法 |
| JPH03106008A (ja) * | 1989-09-20 | 1991-05-02 | Hitachi Aic Inc | 積層型コンデンサの製造方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2611283B2 (ja) * | 1987-07-27 | 1997-05-21 | 株式会社ブリヂストン | 免震用高ロスゴム組成物 |
| JPS6337922A (ja) * | 1986-07-31 | 1988-02-18 | Stanley Electric Co Ltd | 熱圧着方法 |
| JPS63299928A (ja) * | 1987-05-30 | 1988-12-07 | Taiyo Yuden Co Ltd | 積層板の加圧用治具 |
| JP2525934B2 (ja) * | 1990-06-08 | 1996-08-21 | 株式会社ユニシアジェックス | 酸素センサの板体積層装置 |
| JPH0647884A (ja) * | 1991-07-30 | 1994-02-22 | Fuajii:Kk | 積層体の加圧加熱装置 |
| JPH05169595A (ja) * | 1991-12-26 | 1993-07-09 | Mitsubishi Paper Mills Ltd | 剥離用シート |
| DE4392791T1 (de) * | 1992-06-12 | 1995-06-01 | Aluminum Co Of America | Verfahren zur Herstellung mehrlagiger Strukturen mit nichtebenen Oberflächen |
| JP3225666B2 (ja) * | 1993-01-27 | 2001-11-05 | 株式会社村田製作所 | キャビティ付きセラミック多層ブロックの製造方法 |
| JPH06333808A (ja) * | 1993-05-19 | 1994-12-02 | Fuji Photo Film Co Ltd | 薄膜フィルム圧着装置及び圧着方法 |
| JPH07186119A (ja) * | 1993-12-27 | 1995-07-25 | Kyocera Corp | 積層セラミック部品の製造方法 |
| JPH08191033A (ja) * | 1995-01-09 | 1996-07-23 | Sumitomo Kinzoku Electro Device:Kk | 積層セラミック電子部品の製造方法 |
| JP3592882B2 (ja) * | 1997-03-24 | 2004-11-24 | 株式会社村田製作所 | 積層セラミック電子部品の製造方法 |
| JP4088942B2 (ja) * | 1997-12-11 | 2008-05-21 | 株式会社村田製作所 | セラミック多層基板の製造方法 |
| JP3239835B2 (ja) * | 1998-03-09 | 2001-12-17 | 松下電器産業株式会社 | 積層セラミック電子部品の製造方法 |
| JP4759792B2 (ja) * | 1999-10-18 | 2011-08-31 | パナソニック株式会社 | 積層体加圧装置 |
-
2000
- 2000-08-04 JP JP2000237055A patent/JP4759792B2/ja not_active Expired - Fee Related
- 2000-10-17 EP EP00966531A patent/EP1158549A4/en not_active Withdrawn
- 2000-10-17 CN CNB008022704A patent/CN1207739C/zh not_active Expired - Fee Related
- 2000-10-17 KR KR10-2001-7007696A patent/KR100474646B1/ko not_active Expired - Fee Related
- 2000-10-17 WO PCT/JP2000/007187 patent/WO2001029852A1/ja not_active Ceased
- 2000-10-18 TW TW089121806A patent/TW463189B/zh not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687311A (en) * | 1979-12-17 | 1981-07-15 | Matsushita Electric Industrial Co Ltd | Method of manufacturing laminated ceramic condenser |
| JPS6317511A (ja) * | 1986-07-10 | 1988-01-25 | 株式会社村田製作所 | セラミツク体の成形方法 |
| JPH03106008A (ja) * | 1989-09-20 | 1991-05-02 | Hitachi Aic Inc | 積層型コンデンサの製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1158549A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670531A (zh) * | 2022-04-07 | 2022-06-28 | 刘苏平 | 一种电加热钢板层压方法及其层压机 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1207739C (zh) | 2005-06-22 |
| JP4759792B2 (ja) | 2011-08-31 |
| EP1158549A4 (en) | 2006-12-06 |
| CN1327602A (zh) | 2001-12-19 |
| KR100474646B1 (ko) | 2005-03-08 |
| JP2001189228A (ja) | 2001-07-10 |
| TW463189B (en) | 2001-11-11 |
| EP1158549A1 (en) | 2001-11-28 |
| KR20010080772A (ko) | 2001-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3922436B2 (ja) | 積層セラミック電子部品、積層セラミック電子部品の製造方法、及び、積層セラミック電子部品の製造装置 | |
| WO2001029852A1 (en) | Laminated body manufacturing method and laminated body pressurizing device | |
| WO2003036667A1 (en) | Multilayer ceramic electronic component manufacturing method | |
| CN100358062C (zh) | 陶瓷电子元件的制造方法和制造设备 | |
| JP4507412B2 (ja) | 積層セラミック電子部品の製造方法 | |
| JP3506086B2 (ja) | 積層セラミック電子部品の製造方法 | |
| JP3042464B2 (ja) | セラミック電子部品の製造方法 | |
| JP2004014668A (ja) | 積層セラミック電子部品の製造方法 | |
| JP3419364B2 (ja) | セラミック電子部品の製造方法 | |
| JP3238780B2 (ja) | 積層セラミック電子部品の製造方法 | |
| JP3925434B2 (ja) | セラミック電子部品の製造方法 | |
| JP2002100527A (ja) | 積層セラミック電子部品の製造方法 | |
| JP2002326302A (ja) | 耐熱クッション | |
| JP3724113B2 (ja) | セラミック積層体及び酸素センサ素子の製造方法 | |
| JP3042463B2 (ja) | セラミック電子部品の製造方法 | |
| JP3419363B2 (ja) | セラミック電子部品の製造方法 | |
| JP4289054B2 (ja) | 積層セラミック電子部品の製造方法 | |
| JP2008182025A (ja) | 積層型圧電アクチュエータの製造方法 | |
| JP2004356393A (ja) | 積層セラミック電子部品の製造方法 | |
| JPH08236392A (ja) | 積層セラミック電子部品の製造方法 | |
| JP2001110667A (ja) | セラミック電子部品の製造方法 | |
| JPH0230109A (ja) | フィルムコンデンサの製造方法 | |
| JPH042184A (ja) | 電歪効果素子の製造方法 | |
| JP2005038915A (ja) | シート積層部品の製造方法 | |
| JP2002134378A (ja) | 複合プレートの製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 00802270.4 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN KR 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 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2000966531 Country of ref document: EP Ref document number: 09868505 Country of ref document: US Ref document number: 1020017007696 Country of ref document: KR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWP | Wipo information: published in national office |
Ref document number: 1020017007696 Country of ref document: KR |
|
| WWP | Wipo information: published in national office |
Ref document number: 2000966531 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1020017007696 Country of ref document: KR |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2000966531 Country of ref document: EP |