WO2007023722A1 - GaxIn1-xN(0≦x≦1)結晶の製造方法、GaxIn1-xN(0≦x≦1)結晶基板、GaN結晶の製造方法、GaN結晶基板および製品 - Google Patents
GaxIn1-xN(0≦x≦1)結晶の製造方法、GaxIn1-xN(0≦x≦1)結晶基板、GaN結晶の製造方法、GaN結晶基板および製品 Download PDFInfo
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- WO2007023722A1 WO2007023722A1 PCT/JP2006/316142 JP2006316142W WO2007023722A1 WO 2007023722 A1 WO2007023722 A1 WO 2007023722A1 JP 2006316142 W JP2006316142 W JP 2006316142W WO 2007023722 A1 WO2007023722 A1 WO 2007023722A1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/46—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for heating the substrate
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/10—Heating of the reaction chamber or the substrate
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/38—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C30B29/403—AIII-nitrides
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C30B29/403—AIII-nitrides
- C30B29/406—Gallium nitride
Definitions
- Ga in ⁇ (0 ⁇ 1) crystal manufacturing method Ga in ⁇ (0 ⁇ 1) crystal substrate, ⁇ 1
- GaN crystal manufacturing method GaN crystal substrate and product
- the present invention relates to a method for producing a Ga in N (0 ⁇ x ⁇ 1) crystal, a Ga In ⁇ (0 ⁇ 1) crystal substrate
- the present invention relates to a Ga In ⁇ (0 ⁇ 1) crystal substrate and a product including the same.
- the present invention relates to a method for producing a GaN crystal, a GaN crystal substrate, and a product including the same, and in particular, a method for producing a GaN crystal capable of producing a GaN crystal having good crystallinity,
- the present invention relates to a GaN crystal substrate obtained by using a manufacturing method and a product including the same.
- the GaN crystal (gallium nitride crystal) is 3.4 eV.
- a conventional method for producing the GaN crystal there is a method using a HVPE (Hydride Vapor Phase Epitaxy) method.
- Fig. 2 shows a schematic configuration of an example of a manufacturing apparatus used in a conventional GaN crystal manufacturing method using the HVPE method.
- This manufacturing apparatus includes a quartz reaction tube 1, gas introduction tubes 2 and 3 for introducing gas into the quartz reaction tube 1, and an exhaust gas treatment device 8 connected to the quartz reaction tube 1.
- a gallium source boat 4 containing gallium (Ga) and a base substrate 7 are installed inside the quartz reaction tube 1, and nitrogen gas (N) and argon gas (Ar) are introduced through the gas introduction tubes 2 and 3. )
- a carrier gas such as hydrogen gas (H) is introduced into the quartz reaction tube 1 and the heater 5
- the gallium source boat 4 and the base substrate 7 are heated to about 1000 ° C. by 2 and 6. Then, ammonia gas (NH) is introduced through the gas introduction pipe 2 and hydrogen chloride gas is introduced through the gas introduction pipe 3.
- NH ammonia gas
- HC1 gallium and salt-hydrogen gas
- gallium and salt-hydrogen gas first react to form gallium chloride.
- Mugas (GaCl) is produced.
- the generated gallium chloride gas and ammonia gas react to grow a GaN crystal 12 on the surface of the base substrate 7.
- the GaN crystal 12 and the base substrate 7 are lowered to about room temperature.
- the GaN crystal 12 and the base substrate 7 are taken out from the quartz reaction tube 1, and the base substrate 7 is removed by grinding, whereby the GaN crystal 12 is formed.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-181097
- An object of the present invention is to produce a Ga In N (0 ⁇ x ⁇ 1) crystal having good crystallinity.
- an object of the present invention is to provide a GaN crystal production method capable of producing a GaN crystal having good crystallinity and good crystallinity, a GaN crystal substrate obtained using the production method, and It is to provide a product including it.
- the present invention provides a Ga in ⁇ (0 ⁇ ) on the surface of the base substrate by the reaction of a source gas containing ammonia gas and at least one of a halogen gallium gas and a halogen halide gas inside a quartz reaction tube. 1) Growing crystal Ga in ⁇ (0 ⁇ 1) crystal
- the underlying substrate can be individually heated by a heater installed on the back side.
- the base substrate can be individually heated using a thermal method.
- Musgas can be generated by the reaction of gallium and halogen gas.
- the sulfur gas can be generated by the reaction of indium and halogen gas.
- Hydrogen chloride gas can be used as the gas.
- a substrate made of silicon, sapphire, silicon carbide, gallium nitride or aluminum nitride!
- the impurity concentration is
- Ga In N (0 ⁇ x ⁇ 1) crystals that are 1 X 10 18 cm 3 or less can be grown.
- a Ga In N (0 ⁇ x ⁇ 1) crystal can be grown.
- n-type impurities are doped.
- a single-bumped Ga In N (0 ⁇ x ⁇ 1) crystal can be grown.
- an n-type impurity is used.
- a Gain ⁇ (0 ⁇ 1) crystal having a cm- 3 or more and 2X10 18 cm- 3 or less and a specific resistance of 0.01 ⁇ cm or more and 0.1 lQcm or less.
- the thickness of Gain ⁇ (0 ⁇ 1) crystal can be grown.
- the temperature of the base substrate during crystal growth is preferably higher than 1100 ° C and lower than 1400 ° C.
- the temperature of the base substrate during crystal growth is preferably higher than 1150 ° C and lower than 1400 ° C.
- the heating temperature of the external force of the quartz reaction tube is 800 ° C or higher and 1100 ° C or lower, and the temperature of the base substrate is 1100 ° C. Higher than 1400 ° C.
- the heating temperature of the external force of the quartz reaction tube is 800 ° C to 95 ° C and the temperature of the base substrate is 950 ° C. Higher than 1400 ° C.
- the present invention provides a Ga In on the surface of the base substrate by the reaction of a source gas containing ammonia gas and at least one of a halogen-gallium gas and a halogen-indium gas inside the quartz reaction tube.
- ⁇ (0 ⁇ 1) Grow crystal Gain ⁇ (0 ⁇ 1
- the present invention provides a Ga In on the surface of the base substrate by a reaction of a source gas containing ammonia gas and at least one of a halogen-gallium gas and a halogen-indium gas inside a quartz reaction tube.
- the present invention provides a method for producing a Ga In N (0 ⁇ x ⁇ 1) crystal as described above.
- the present invention is a product including the Ga In N (0 ⁇ x ⁇ 1) crystal substrate.
- the present invention also relates to a method for producing a GaN crystal in which a GaN crystal is grown on a surface of a base substrate by a reaction of a source gas containing a halogenated gallium gas and an ammonia gas inside a quartz reaction tube, It is characterized in that it is a method for producing a GaN crystal in which the quartz reaction tube is heated by an external force during crystal growth and the underlying substrate is individually heated.
- the base substrate can be individually heated by a heater installed on the back side of the base substrate.
- the base substrate can be individually heated using a high-frequency induction heating method.
- the halogenated gallium gas can be generated by a reaction of gallium with nitrogen and a rogen gas.
- a salty hydrogen gas can be used as a halogen gas.
- GaN crystal of the present invention can be impurity concentration is grown GaN crystal is less than 1 X 10 18 cm 3.
- At least one kind selected from the group force including carbon, magnesium, iron, beryllium, zinc, vanadium, and antimony as impurities is 1 X 10 Ga with a concentration of 17 cm 3 or more and a specific resistance of 1 X 10 4 Q cm or more
- N crystals can be grown. [0037] In the method for producing a GaN crystal of the present invention, a GaN crystal doped with an n-type impurity can be grown.
- n-type impurity oxygen, silicon down, sulfur, germanium, at least one kind of 1 X 10 17 cm 3 selected group force consisting selenium and tellurium force It is possible to grow GaN crystals that are contained at the above concentrations and have a specific resistance of 1 ⁇ cm or less.
- a GaN crystal can be grown.
- the carbon concentration is 5 X 10 15 cm 3 or more and less than 1 X 10 17 cm 3
- the oxygen content concentration n is 1 X 10 17 cm 3 or more 2 X 10 18 cm— 3 or less
- a GaN crystal having a thickness of 200 ⁇ m or more can be grown.
- the base substrate has a gallium nitride force.
- the arithmetic average roughness Ra of the surface of the base substrate is preferably 10 ⁇ m or less.
- the temperature of the base substrate during the growth of the GaN crystal is higher than 1100 ° C and lower than 1300 ° C.
- the temperature of the base substrate during the growth of the GaN crystal is higher than 1150 ° C and lower than 1250 ° C.
- the heating temperature of the external force of the quartz reaction tube is 800 ° C or higher and 1100 ° C or lower when the GaN crystal is grown. It is preferred that the temperature of the plate is higher than 1100 ° C and lower than 1300 ° C.
- the heating temperature from the outside of the quartz reaction tube is 800 ° C or higher and 950 ° C or lower, and the base substrate The temperature is preferably higher than 950 ° C and lower than 1300 ° C.
- the heating temperature of the external force of the quartz reaction tube is 800 ° C or higher and 1100 ° C or lower, and the base substrate The temperature is preferably higher than 1150 ° C and lower than 1250 ° C.
- the heating temperature from the outside of the quartz reaction tube is 800 ° C or higher and 950 ° C or lower, and The temperature is preferably higher than 1150 ° C and lower than 1250 ° C.
- the present invention is a method for producing a GaN crystal in which a GaN crystal is grown on the surface of a base substrate by a reaction of a source gas containing a halogenated gallium gas and an ammonia gas inside a quartz reaction tube.
- the temperature of the base substrate during the growth of the GaN crystal is higher than 1100 ° C and lower than 1300 ° C.
- the present invention is a method for producing a GaN crystal in which a GaN crystal is grown on the surface of a base substrate by a reaction of a source gas containing a halogenated gallium gas and an ammonia gas inside a quartz reaction tube.
- the temperature of the base substrate during the growth of the GaN crystal is higher than 1150 ° C and lower than 1250 ° C.
- the present invention is a GaN crystal substrate having a GaN crystal force obtained by any one of the above-described GaN crystal manufacturing methods.
- the present invention is a product including the above GaN crystal substrate.
- a GaN crystal manufacturing method capable of manufacturing a GaN crystal having good crystallinity, a GaN crystal substrate obtained by using the manufacturing method, and a product including the same are provided. Can be provided. Brief Description of Drawings
- FIG. 1 is a diagram showing a schematic configuration of a preferred example of a production apparatus used in the method for producing a GaN crystal of the present invention.
- FIG. 2 is a diagram showing a schematic configuration of an example of a production apparatus used in a conventional method for producing a GaN crystal.
- FIG. 3 is a diagram showing a schematic configuration of another preferred example of a production apparatus used in the method for producing a GaN crystal of the present invention.
- FIG. 1 shows a schematic configuration of a preferred example of a production apparatus used in the method for producing a GaN crystal of the present invention.
- the production apparatus shown in FIG. 1 is installed outside the quartz reaction tube 1, the quartz reaction tube 1, the gas introduction tubes 2 and 3 for introducing gas into the quartz reaction tube 1, and the quartz reaction tube 1.
- Heaters 5 and 6 and an exhaust gas treatment device 8 connected to the quartz reaction tube 1 are included.
- the base substrate 7 and the gallium source boat 4 containing gallium are installed inside the quartz reaction tube 1 of the manufacturing apparatus having such a configuration, and the heater 11 is installed on the back side of the base substrate 7.
- the heater 11 is connected to the power source 9 via a wiring 10 having a molybdenum (Mo) force, for example.
- the heating temperature of the heaters 5 and 6 installed outside the quartz reaction tube 1 is preferably 800 ° C or higher and 1100 ° C or lower, and is preferably 800 ° C or higher and 950 ° C or lower. It is more preferable.
- the heating temperature of the heaters 5 and 6 is less than 800 ° C, the heating of the gallium source boat 4 is insufficient, and the reaction between the halogen gas and gallium is suppressed during the growth of the GaN crystal described later. There is a possibility that the amount of halogenated gallium necessary for the growth of gallium will be reduced, and by-products other than GaN and gallium splash may occur frequently.
- the quartz reaction tube 1 when the heating temperature of the heaters 5 and 6 is higher than 1100 ° C., the quartz reaction tube 1 is melted. In addition, if the heating temperature of heaters 5 and 6 is higher than 950 ° C, the quartz reaction tube 1 will deteriorate due to the heating of heaters 5 and 6 and the life of the quartz reaction tube 1 will be shortened and the quartz reaction will soon occur. Since tube 1 cannot be used multiple times, it tends to lack mass productivity. In addition, when the heating temperature of heaters 5 and 6 is 800 ° C or higher and 950 ° C or lower, it is possible to effectively prevent unintended impurities from being scattered during the growth of the GaN crystal. It is possible to prevent unintended impurities from entering the GaN crystal.
- the heating temperature of the heaters 5 and 6 is 800 ° C. or higher and 950 ° C. or lower, the raw material gas reacts until it reaches the base substrate 7, and the product adheres to the quartz reaction tube 1. As a result, it is possible to suppress the consumption of the raw material gas, so that the generation efficiency of GaN crystals (ratio of the amount of grown GaN crystals generated to the amount of raw materials charged) tends to be improved. is there.
- the temperature of the base substrate 7 heated by the heater 11 installed on the back side of the base substrate 7 is preferably higher than 950 ° C and lower than 1400 ° C, and higher than 1100 ° C. More preferably, it is 140 ° C. or lower, more preferably higher than 1150 ° C. and 1400 ° C. or lower. If the temperature of the base substrate 7 is higher than 1400 ° C, the growth rate of the GaN crystal may be lowered when the growth rate of the GaN crystal, which will be described later, is significantly higher than the generation rate of the GaN crystal. In addition, as the temperature of the base substrate 7 increases to 950 ° C., 1100 ° C., and 1150 ° C., the crystallinity of the grown GaN crystal tends to improve.
- the temperature of the base substrate 7 during the growth of the GaN crystal is higher than 950 ° C. It is preferably 1300 ° C or higher and more preferably 1300 ° C or higher and more preferably 1300 ° C or lower and more preferably 1150 ° C or higher and 1250 ° C or lower. This is because, when the base substrate 7 is made of gallium nitride, the crystallinity of the grown GaN crystal is improved as the temperature of the base substrate 7 is increased to 950 ° C, 1100 ° C, and 1150 ° C.
- the inventor has found that the generation of cracks when polished after slicing of the grown GaN crystal is reduced and the production yield of the GaN crystal substrate is improved. The reason for this is unknown, but it is thought that the stress concentration in the GaN crystal was reduced by growing it at a high temperature.
- the temperature of the base substrate 7 is preferably higher than 1150 ° C for the above reasons. As the temperature rises, decomposition of the base substrate 7 made of GaN crystals tends to progress, and when the temperature of the base substrate 7 exceeds 1300 ° C, the decomposition becomes significant and the base substrate 7 It tends to be damaged.
- the decomposition of the base substrate 7 is not remarkable, but the decomposition progresses to some extent. Therefore, there is a tendency that long GaN crystals cannot be grown.
- the heating temperature of the heaters 5 and 6 is, for example, 800 ° C or more and 950 ° C or less
- the temperature of the base substrate 7 is, for example, higher than 1100 ° C and 1400 ° C or less or 1150 ° C.
- the gallium source boat 4 can be heated while preventing the quartz reaction tube 1 from being melted by heating from the heaters 5 and 6, and the temperature of the base substrate 7 is set to the quartz reaction tube.
- the temperature can be higher than the melting temperature of 1.
- the heating temperature of the heaters 5 and 6 is preferably used during the growth of the GaN crystal.
- the gallium source boat 4 can be heated while preventing the quartz reaction tube 1 from melting, and the temperature of the base substrate 7 can be made higher than the melting temperature of the quartz reaction tube 1.
- the crystallinity of the grown GaN crystal can be improved, and the production yield of the GaN crystal substrate can be improved.
- the heating temperature of the heaters 5 and 6 and the temperature of the base substrate 7 are maintained almost constant until the growth of the GaN crystal is completed.
- ammonia gas is introduced into the quartz reaction tube 1 along with the carrier gas through the gas introduction tube 2, and a halogen reaction such as salty hydrogen gas is carried out with the carrier gas through the gas introduction tube 3 together with the carrier gas. Introduce inside tube 1.
- the partial pressure of the halogen gas in the quartz reaction tube 1 during the growth of the GaN crystal is 1
- the partial pressure of the halogen gas in the quartz reaction tube 1 during the growth of the GaN crystal is 2
- the halogen gas introduced through the gas introduction pipe 3 is, for example, a salty hydrogen gas
- the salty hydrogen gas that has reached the gallium source boat 4 is separated from the gallium in the gallium source boat 4. It reacts to produce salt gallium gas (GaCl), which is a halogen gallium gas.
- the raw material gas power containing gallium halide gas and ammonia gas reaches the surface of the heated base substrate 7, and the base material is reacted by the reaction of the raw material gas containing halogen gallium gas and ammonia gas.
- a GaN crystal 12 grows on the surface of the substrate 7.
- the temperature of the GaN crystal 12 is lowered to near room temperature, and the GaN crystal 12 grown on the surface of the base substrate 7 is taken out from the quartz reaction tube 1 together with the base substrate 7. .
- the underlying substrate 7 is removed by grinding or the like, whereby the GaN crystal 12 is obtained.
- the base substrate 7 in addition to heating by the heaters 5 and 6 outside the quartz reaction tube 1, the base substrate 7 is individually heated by the heater 11 inside the quartz reaction tube 1. Therefore, the temperature of the base substrate 7 can be made higher than the heating temperature outside the quartz reaction tube 1 by the heaters 5 and 6, so that the quartz reaction tube 1 is not melted without melting the quartz reaction tube 1.
- the reaction of the source gas containing the halogenated gallium gas and the ammonia gas inside can be promoted, and the crystallinity of the GaN crystal 12 can be improved.
- the heating temperature outside the quartz reaction tube 1 can be made lower than the temperature at which the deterioration of the quartz reaction tube 1 proceeds by individually heating the base substrate 7. As a result, the quartz reaction tube 1 can be used over and over again, and mass productivity can be improved.
- the damage layer is removed by polishing to produce a GaN crystal substrate.
- the GaN crystal substrate can also be manufactured by cutting the GaN crystal 12 to a predetermined thickness, mirror polishing, and then removing the damaged layer by polishing.
- the cutting direction of the GaN crystal 12 is not particularly limited, and may be a direction parallel to the surface of the base substrate 7 before removal or a direction inclined arbitrarily.
- an indium source boat containing indium is installed instead of a gallium source boat containing gallium, thereby chlorinating.
- An InN crystal can also be produced using a source gas containing an indium halide gas such as an indium chloride gas generated by a reaction between a halogen gas such as hydrogen and indium.
- a Ga In N (0 ⁇ x ⁇ 1) crystal other than a GaN crystal and an InN crystal can be produced using a source gas containing both a gallium halide gas and an indium halide gas.
- the base substrate can be heated using a high frequency induction heating method.
- a high frequency induction heating method As shown in FIG. 3, for example, as shown in FIG. 3, the base substrate 7 is placed on the carbon support plate 14, and the base substrate 7 is heated at least at a location corresponding to the position where the base substrate 7 is installed.
- the high frequency coil 13 is wound around the outer periphery of the quartz reaction tube 1, the carbon support plate 14 is induction-heated by flowing a high-frequency current through the high-frequency coil 13, and the base substrate 7 is heated by the heat. .
- the base substrate silicon, sapphire, silicon carbide (SiC) It is preferable to use a substrate made of gallium nitride (GaN) or aluminum nitride (A1N) having a displacement force.
- GaN gallium nitride
- A1N aluminum nitride
- the lattice matching with Ga In N (0 ⁇ x 1-xx ⁇ l) is particularly good, so the higher crystallinity Ga In N (0 ⁇ x ⁇
- a crystal can be produced.
- the base substrate is also gallium nitride.
- the lattice constants of the underlying substrate and the growing GaN crystal are the same, the crystallinity of the growing GaN crystal is improved, and warp and cracking are effectively prevented from occurring in the grown Ga N crystal. be able to.
- the arithmetic average roughness Ra of the surface of the underlying substrate is preferably 10 m or less. : L m or less is more preferable.
- the average roughness Ra of the surface of the base substrate is 10 m or less, it is possible to effectively prevent the occurrence of cracks during the growth of the GaN crystal due to the base substrate, and the arithmetic average of the surface of the base substrate If the roughness Ra is less than 1 m, the effect is even greater.
- the arithmetic average roughness Ra means the arithmetic average roughness Ra defined in JIS B0601 2001.
- the impurity concentration of the grown Ga In N (0 ⁇ x ⁇ 1) crystal is G
- High-purity Ga In N (0 ⁇ x ⁇ 1) crystals can be grown because HVPE as described above can reduce background force impurities.
- Ga In ⁇ (0 ⁇ 1) crystal substrates can be manufactured.
- At least one selected as a group force including carbon, magnesium, iron, beryllium, zinc, vanadium and antimony as impurities is 1 X 10 17 cm " Gain ⁇ (0 ⁇ 1) crystal with a concentration of 3 or more and resistivity of IX 10 4 ⁇ cm or more
- the total concentration should be 1 ⁇ 10 17 cm ′′ 3 or more.
- the specific resistance is Ga In ⁇ (0 ⁇ ⁇ 1) crystal
- oxygen, silicon, sulfur, germanium, selenium and tellurium force becomes the group forces also at least one selected contain at 1 X 10 17 cm 3 or more concentrations Growing a Gain N (0 ⁇ x ⁇ 1) crystal whose specific resistance is 1 ⁇ cm or less
- the total concentration may be 1 ⁇ 10 17 cm 3 or more.
- the impurity contains at least one selected from the group consisting of carbon, oxygen, and silicon, the carbon content concentration is n, the oxygen content concentration is n, and the silicon content is included.
- the concentration is n
- Crystals can also be grown. Where n force X 10 17 cm 3
- carbon, oxygen and silicon are contained as impurities, the carbon concentration n is 5 X 10 15 cm- 3 or more and less than 1 X 10 17 cm- 3 , and oxygen content Concentration n is 1 X 10 17 cm 3 or more and 2X 10 18 cm 3 or less, and the silicon concentration n force ⁇ X 10 17 cm 3 or more
- oxygen concentration n If the silicon concentration is greater than n force 3 ⁇ 4 X 10 18 cm— 3 , the Ga in ⁇ (0 ⁇ 1) crystal
- Ga In N (0 ⁇ x ⁇ 1) crystal substrate when a Ga In N (0 ⁇ x ⁇ 1) crystal substrate is manufactured, Ga In
- the GaN crystal substrate When manufacturing a GaN crystal substrate, it is preferable to grow the GaN crystal to a thickness of 200 m or more.
- Ga in N (0 ⁇ x ⁇ 1) crystal force Ga In ⁇ (0 ⁇ 1) in the present invention.
- Crystal substrates are optical devices (light-emitting diodes, laser diodes, etc.), electronic devices (rectifiers, neuropolar transistors, field-effect transistors, cages, etc.) or semiconductor sensors (temperature sensors, pressure sensors, radiation sensors, visible ultraviolet light detection) It can be used as a substrate for products such as semiconductor devices such as ceramics, SAW (surface acoustic wave) devices, vibrators, oscillators, MEMS components, and piezoelectric actuators.
- Ga In N in the present invention (0 ⁇ x ⁇ 1)
- the above products can be manufactured by stacking a semiconductor layer and a Z or metal layer on the surface of the X 1-x crystal substrate.
- a base substrate 7 made of gallium nitride (GaN) crystal from which a damaged layer by polishing was removed after mirror polishing and a gallium source boat 4 containing gallium were installed inside the quartz reaction tube 1 shown in FIG. 1, a base substrate 7 made of gallium nitride (GaN) crystal from which a damaged layer by polishing was removed after mirror polishing and a gallium source boat 4 containing gallium were installed. .
- the diameter of the base substrate 7 was 2 inches and the thickness was 400 / zm. Further, the surface orientation of the surface of the base substrate 7 was the (001) plane.
- the partial pressure of the sodium chloride hydrogen gas and the partial pressure of the ammonia gas inside the quartz reaction tube 1 are respectively adjusted so that no polycrystal is generated and the growth rate is 30 mZh. It was made to become above.
- the partial pressure of the interior of Shioi ⁇ containing gas of the quartz reaction tube 1 at the time of growth of GaN crystal 12 is adjusted in a range of 2 X 10- 2 atm above 0.
- LATM the partial pressure of ammonia gas 0 Adjusted within the range of 2atm to 0.7atm.
- the temperature of the GaN crystal 12 was lowered to room temperature. Thereafter, the GaN crystal 12 grown on the surface of the base substrate 7 was taken out from the quartz reaction tube 1. Then, the GaN crystal 12 obtained by removing the base substrate 7 by grinding was mirror-polished, and then the damaged layer was removed by polishing to produce a GaN crystal substrate.
- the RMS Room Mean Square surface roughness observed with an AFM (Atomic Force Microscope) within the range of 10 ⁇ m square of this GaN crystal substrate was 50 nm or less, which was good. It was.
- the concentration of oxygen as the most abundant impurity was about 2 X 10 17 cm 3 Therefore, even if all the concentrations of impurities contained in the GaN crystal substrate were combined, it was 1 ⁇ 10 18 cm ” 3 or less.
- the GaN crystal 12 shown in FIG. 1 was grown to a thickness of 5 mm, and then the underlying substrate 7 made of gallium nitride was completely removed by grinding. Then, four GaN crystals having a thickness of 500 m were manufactured by slicing the GaN crystal 12 in a direction parallel to the surface of the base substrate 7 before removal. After that, these four GaN crystals were each mirror-polished, and then the damaged layer was removed by polishing to produce four GaN crystal substrates. did.
- each of these four GaN crystal substrates was analyzed by SIMS. As a result, the most abundant impurity contained in each GaN crystal substrate was oxygen. The concentration of each was about 2 ⁇ 10 17 cm 3 . The total concentration of all impurities contained in each GaN crystal substrate was calculated and found to be IX 10 18 cm 3 or less.
- Dichlorosilane (SiH C1) was introduced in addition to hydrogen chloride gas and ammonia gas.
- a GaN crystal 12 containing silicon as an n-type impurity was grown on the surface of the base substrate 7 shown in FIG. 1 by the same method and under the same conditions as in Example 1. Then, by removing the base substrate 7, a GaN crystal 12 having a thickness of 400 m and containing silicon was manufactured.
- Example 3 the same results as in Example 3 can be obtained even when tetrachlorosilane (SiCl 3) is used in place of dichlorosilan, which uses dichlorosilane as the silicon source.
- Example 4 it is considered that the same result as in Example 3 can be obtained even when tetrachlorosilane and silicon are used together with dichlorosilane. Further, it is considered that the same result as in Example 3 can be obtained even when a silicon source other than dichlorosilane and tetrachloride silicon is used. [Example 4]
- the base substrate 7 had a diameter of 2 inches and a thickness of 400 m. Further, the surface orientation of the surface of the base substrate 7 was the (001) plane.
- a gallium source boat 4 containing gallium was installed inside the quartz reaction tube 1.
- the heating temperature of the heaters 5 and 6 is raised to 950 ° C and the base substrate 7
- a high-frequency induction heating method by flowing a high-frequency current through a high-frequency coil wound around the outer periphery of the quartz reaction tube at a location corresponding to the position where the substrate is installed, the temperature of the base substrate 7 is reduced to 1200 ° C.
- the carbon support plate 14 was heated so that
- the ammonia gas is introduced together with the hydrogen gas through the gas introduction pipe 2.
- hydrogen chloride gas was introduced through the gas introduction pipe 3 together with the above hydrogen gas.
- the salty hydrogen gas reacts with the gallium in the gallium source boat 4 to produce a salty gallium gas, and on the surface of the base substrate 7 by the reaction of the source gas containing the salty gallium gas and the ammonia gas. GaN crystal 12 was grown.
- the partial pressure of the sodium chloride hydrogen gas and the partial pressure of the ammonia gas inside the quartz reaction tube 1 are respectively adjusted so that no polycrystal is generated and the growth rate is 30 mZh. It was made to become above.
- the partial pressure of the interior of Shioi ⁇ containing gas of the quartz reaction tube 1 at the time of growth of GaN crystal 12 is adjusted in a range of 2 X 10- 2 atm above 0.
- LATM the partial pressure of ammonia gas 0 Adjusted within the range of 2atm to 0.7atm.
- the temperature of the GaN crystal 12 was lowered to room temperature. Thereafter, the GaN crystal 12 grown on the surface of the base substrate 7 was taken out from the quartz reaction tube 1. Then, the GaN crystal 12 obtained by removing the base substrate 7 by grinding was mirror-polished, and then the damaged layer was removed by polishing to produce a GaN crystal substrate.
- the GaN crystal substrate was not cracked, and this GaN crystal substrate was bonded by XRD.
- a crystallinity analysis showed that the (004) plane rocking curve had a half-value width of 0 seconds and was good.o
- the concentration of oxygen which was the most abundant impurity, was about 2 X 10 17 cm 3
- the impurity contained in the GaN crystal substrate was The total concentration of all was 1 X 10 18 cm 3 or less.
- a GaN crystal was prepared in the same manner as in Example 1 except that the manufacturing apparatus shown in FIG. 2 was used and the heating temperature of the heaters 5 and 6 shown in FIG. Growing up.
- the GaN crystal 12 obtained by removing the base substrate 7 by grinding was mirror-polished, and then the damaged layer was removed by polishing to produce a GaN crystal substrate.
- the present invention can improve the crystallinity by heating the base substrate to a high temperature in preparation for heating the quartz reaction tube from the outside.
- the temperature of the base substrate 7 made of N crystal was maintained at 1200 ° C., and the GaN crystal 12 was grown to a thickness of 400 ⁇ m. At this time, the partial pressure of each gas constituting the source gas was adjusted so that the growth rate of the GaN crystal 12 was 200 mZh.
- the heating temperature of the heaters 5 and 6 is maintained at 1050 ° C
- the temperature of the base substrate 7 is maintained at 1200 ° C
- the GaN crystal 12 is grown in the same manner as described above.
- the growth rate of N crystal 12 was 50 mZh.
- Example 6 The GaN crystal 12 was grown to a thickness of 10 mm using the same method and the same conditions as in Example 1 while maintaining the temperature of the base substrate 7 made of GaN crystal at 1200 ° C. Then, the grown GaN crystal 12 was sliced and then mirror-polished to produce ten 400 m thick GaN crystal substrates. Of the 10 GaN crystal substrates, no GaN crystal substrates were cracked.
- the base substrate 7 shown in Fig. 1 has an arithmetic average roughness Ra of 0.1 ⁇ m to 0.5 m and a GaN crystal force of 15 ⁇ m to 20 ⁇ m. And 10 each. Then, using the same method and the same conditions as in Example 1, a GaN crystal 12 was grown to a thickness of 10 mm on the surface of each base substrate 7.
- the GaN crystal 12 is grown on the surface of the base substrate 7 made of a GaN crystal having an arithmetic average roughness Ra of 0.1 ⁇ m or more and 0.5 ⁇ m or less, Regardless of which of the underlying substrate 7 was used, the growing GaN crystal did not crack and was strong.
- Example 2 In the same manner and under the same conditions as in Example 1 except that the salty iron gas produced by reacting iron and hydrogen chloride gas in addition to the salty hydrogen gas and ammonia gas was used. A GaN crystal 12 containing iron as an impurity was grown on the surface of the base substrate 7 shown in FIG. Then, by removing the base substrate 7, a 400 / zm-thick GaN crystal 12 containing iron was manufactured.
- the GaN crystal 12 obtained by removing the base substrate 7 by grinding was mirror-polished, and then the damaged layer was removed by polishing to produce a GaN crystal substrate.
- This GaN crystal substrate was analyzed by SIMS. The concentration of was about 1 ⁇ 10 18 cm 3 . The specific resistance of this GaN crystal substrate at 25 ° C was about 1 X 10 7 ⁇ cm.
- silicon is included as an impurity on the surface of the base substrate 7 shown in FIG. 1 using the same method and the same conditions as in Example 1 except that silicon tetrachloride gas is used.
- GaN crystal 12 was grown. Then, by removing the base substrate 7, a GaN crystal 12 containing silicon and having a thickness of 400 m was manufactured.
- this GaN crystal substrate was analyzed by SIMS, it contained carbon and oxygen as unintentional impurities in addition to silicon, which is an impurity, and the concentration of silicon was 1 X 10 18 cm 3 The carbon concentration was about 5 ⁇ 10 17 cm 3 and the oxygen concentration was about 2 ⁇ 10 17 cm 3. The specific resistance of this GaN crystal substrate at 25 ° C was about 0.01 ⁇ cm.
- the present invention provides a Ga in N (0 ⁇ x ⁇ 1) crystal, a Ga In N (0 ⁇ x ⁇ 1) crystal substrate, or a substrate thereof.
- Ga In ⁇ (0 ⁇ 1) can be used to manufacture products containing crystal substrates.
- book 1
- the invention can be suitably used for the manufacture of GaN crystals, the manufacture of GaN crystal substrates, and the manufacture of products including GaN crystal substrates.
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- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
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Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007532075A JPWO2007023722A1 (ja) | 2005-08-25 | 2006-08-17 | GaxIn1−xN(0≦x≦1)結晶の製造方法、GaxIn1−xN(0≦x≦1)結晶基板、GaN結晶の製造方法、GaN結晶基板および製品 |
| US11/919,705 US20090032907A1 (en) | 2005-08-25 | 2006-08-17 | Method for Producing GaxIn1-xN(0<x>) Crystal Gaxin1-xn(0<x<1) Crystalline Substrate, Method for Producing GaN Crystal, GaN Crystalline Substrate, and Product |
| EP06796499A EP1930485A4 (en) | 2005-08-25 | 2006-08-17 | METHOD FOR PRODUCING GAXIN 1 -XN (0 X 1) CRYSTAL, GAXIN 1 -XN (0 X 1) CRYSTAL SUBSTRATE, METHOD FOR PRODUCING GAN CRYSTAL, GAN CRYSTAL SUBSTRATE AND PRODUCT |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005244328 | 2005-08-25 | ||
| JP2005-244328 | 2005-08-25 | ||
| JP2006-135212 | 2006-05-15 | ||
| JP2006135212 | 2006-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007023722A1 true WO2007023722A1 (ja) | 2007-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2006/316142 Ceased WO2007023722A1 (ja) | 2005-08-25 | 2006-08-17 | GaxIn1-xN(0≦x≦1)結晶の製造方法、GaxIn1-xN(0≦x≦1)結晶基板、GaN結晶の製造方法、GaN結晶基板および製品 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090032907A1 (ja) |
| EP (1) | EP1930485A4 (ja) |
| JP (1) | JPWO2007023722A1 (ja) |
| KR (1) | KR20080037606A (ja) |
| TW (1) | TW200720497A (ja) |
| WO (1) | WO2007023722A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010132491A (ja) * | 2008-12-04 | 2010-06-17 | Sumitomo Electric Ind Ltd | Iii族窒化物結晶の成長方法 |
| JP2011201766A (ja) * | 2010-03-02 | 2011-10-13 | Mitsubishi Chemicals Corp | 窒化物半導体製造装置、窒化物半導体の製造方法および窒化物半導体結晶 |
| WO2020241761A1 (ja) * | 2019-05-30 | 2020-12-03 | 三菱ケミカル株式会社 | GaN基板ウエハおよびその製造方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5365454B2 (ja) * | 2009-09-30 | 2013-12-11 | 住友電気工業株式会社 | Iii族窒化物半導体基板、エピタキシャル基板及び半導体デバイス |
| US11640191B2 (en) * | 2018-02-14 | 2023-05-02 | Sony Semiconductor Solutions Corporation | Display device and electronic apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0613330A (ja) * | 1992-06-26 | 1994-01-21 | Nec Corp | 気相成長装置 |
| JPH1017400A (ja) * | 1996-07-02 | 1998-01-20 | Sumitomo Electric Ind Ltd | Mgドープ窒化物系III−V族化合物半導体結晶の成長方法 |
| JP2000286200A (ja) * | 1999-03-31 | 2000-10-13 | Kokusai Electric Co Ltd | 熱処理方法および熱処理装置 |
| JP2005223243A (ja) * | 2004-02-09 | 2005-08-18 | Hitachi Cable Ltd | Iii族窒化物系半導体結晶の製造方法及びハイドライド気相成長装置 |
| JP2005343705A (ja) * | 2004-05-31 | 2005-12-15 | Sumitomo Electric Ind Ltd | AlxGayIn1−x−yN結晶の製造方法 |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1071068A (en) * | 1975-03-19 | 1980-02-05 | Guy-Michel Jacob | Method of manufacturing single crystals by growth from the vapour phase |
| JPS5626800A (en) * | 1979-08-09 | 1981-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Vapor phase epitaxial growing method |
| JPS61155291A (ja) * | 1984-12-26 | 1986-07-14 | Nec Corp | 気相成長方法 |
| DE19622402C1 (de) * | 1996-06-04 | 1997-10-16 | Siemens Ag | Vorrichtung zum Behandeln wenigstens eines Substrats sowie Verwendung der Vorrichtung |
| US6890809B2 (en) * | 1997-11-18 | 2005-05-10 | Technologies And Deviles International, Inc. | Method for fabricating a P-N heterojunction device utilizing HVPE grown III-V compound layers and resultant device |
| US6218269B1 (en) * | 1997-11-18 | 2001-04-17 | Technology And Devices International, Inc. | Process for producing III-V nitride pn junctions and p-i-n junctions |
| US6218280B1 (en) * | 1998-06-18 | 2001-04-17 | University Of Florida | Method and apparatus for producing group-III nitrides |
| DE19855637A1 (de) * | 1998-12-02 | 2000-06-15 | Aixtron Ag | Verfahren und System zur Halbleiterkristallherstellung mit Temperaturverwaltung |
| JP4126812B2 (ja) * | 1999-07-07 | 2008-07-30 | 富士ゼロックス株式会社 | 光半導体素子 |
| JP4145437B2 (ja) * | 1999-09-28 | 2008-09-03 | 住友電気工業株式会社 | 単結晶GaNの結晶成長方法及び単結晶GaN基板の製造方法と単結晶GaN基板 |
| JP3929008B2 (ja) * | 2000-01-14 | 2007-06-13 | シャープ株式会社 | 窒化物系化合物半導体発光素子およびその製造方法 |
| JP2001267257A (ja) * | 2000-01-14 | 2001-09-28 | Sony Corp | 窒化物半導体の製造方法および半導体素子の製造方法 |
| JP3968968B2 (ja) * | 2000-07-10 | 2007-08-29 | 住友電気工業株式会社 | 単結晶GaN基板の製造方法 |
| JP3607664B2 (ja) * | 2000-12-12 | 2005-01-05 | 日本碍子株式会社 | Iii−v族窒化物膜の製造装置 |
| US6573164B2 (en) * | 2001-03-30 | 2003-06-03 | Technologies And Devices International, Inc. | Method of epitaxially growing device structures with sharp layer interfaces utilizing HVPE |
| US6773504B2 (en) * | 2001-04-12 | 2004-08-10 | Sumitomo Electric Industries, Ltd. | Oxygen doping method to gallium nitride single crystal substrate and oxygen-doped N-type gallium nitride freestanding single crystal substrate |
| US20030205193A1 (en) * | 2001-07-06 | 2003-11-06 | Melnik Yuri V. | Method for achieving low defect density aigan single crystal boules |
| US6613143B1 (en) * | 2001-07-06 | 2003-09-02 | Technologies And Devices International, Inc. | Method for fabricating bulk GaN single crystals |
| JP2003165798A (ja) * | 2001-11-28 | 2003-06-10 | Hitachi Cable Ltd | 窒化ガリウム単結晶基板の製造方法、窒化ガリウム単結晶のエピタキシャル成長自立基板、及びその上に形成したデバイス素子 |
| DE10218409A1 (de) * | 2002-04-24 | 2003-11-06 | Merck Patent Gmbh | Verfahren zur Herstellung von Nitriden |
| US7098487B2 (en) * | 2002-12-27 | 2006-08-29 | General Electric Company | Gallium nitride crystal and method of making same |
| KR100884288B1 (ko) * | 2003-10-02 | 2009-02-18 | 쇼와 덴코 가부시키가이샤 | 질화물 반도체, 질화물 반도체를 이용한 발광 소자, 발광다이오드, 레이저 소자 및 램프, 및 그 제조 방법 |
| JP4622447B2 (ja) * | 2004-01-23 | 2011-02-02 | 住友電気工業株式会社 | Iii族窒化物結晶基板の製造方法 |
| JP2006073578A (ja) * | 2004-08-31 | 2006-03-16 | Nokodai Tlo Kk | AlGaNの気相成長方法及び気相成長装置 |
| JP2006127884A (ja) * | 2004-10-28 | 2006-05-18 | Matsushita Electric Ind Co Ltd | 発光素子および表示装置 |
| JP2006290677A (ja) * | 2005-04-11 | 2006-10-26 | Hitachi Cable Ltd | 窒化物系化合物半導体結晶の製造方法及び窒化物系化合物半導体基板の製造方法 |
| JP2007197302A (ja) * | 2005-12-28 | 2007-08-09 | Sumitomo Electric Ind Ltd | Iii族窒化物結晶の製造方法および製造装置 |
| JP4862442B2 (ja) * | 2006-03-15 | 2012-01-25 | 日立電線株式会社 | Iii−v族窒化物系半導体基板の製造方法及びiii−v族窒化物系デバイスの製造方法 |
| WO2008029589A1 (en) * | 2006-09-08 | 2008-03-13 | Tokuyama Corporation | Method and equipment for producing group-iii nitride |
| JP5564162B2 (ja) * | 2006-09-29 | 2014-07-30 | フューチャー ライト リミテッド ライアビリティ カンパニー | 発光ダイオード装置 |
-
2006
- 2006-08-17 EP EP06796499A patent/EP1930485A4/en not_active Withdrawn
- 2006-08-17 KR KR1020077026403A patent/KR20080037606A/ko not_active Withdrawn
- 2006-08-17 JP JP2007532075A patent/JPWO2007023722A1/ja active Pending
- 2006-08-17 WO PCT/JP2006/316142 patent/WO2007023722A1/ja not_active Ceased
- 2006-08-17 US US11/919,705 patent/US20090032907A1/en not_active Abandoned
- 2006-08-23 TW TW095130992A patent/TW200720497A/zh unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0613330A (ja) * | 1992-06-26 | 1994-01-21 | Nec Corp | 気相成長装置 |
| JPH1017400A (ja) * | 1996-07-02 | 1998-01-20 | Sumitomo Electric Ind Ltd | Mgドープ窒化物系III−V族化合物半導体結晶の成長方法 |
| JP2000286200A (ja) * | 1999-03-31 | 2000-10-13 | Kokusai Electric Co Ltd | 熱処理方法および熱処理装置 |
| JP2005223243A (ja) * | 2004-02-09 | 2005-08-18 | Hitachi Cable Ltd | Iii族窒化物系半導体結晶の製造方法及びハイドライド気相成長装置 |
| JP2005343705A (ja) * | 2004-05-31 | 2005-12-15 | Sumitomo Electric Ind Ltd | AlxGayIn1−x−yN結晶の製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1930485A4 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010132491A (ja) * | 2008-12-04 | 2010-06-17 | Sumitomo Electric Ind Ltd | Iii族窒化物結晶の成長方法 |
| US9279194B2 (en) | 2008-12-04 | 2016-03-08 | Sumitomo Electric Industries, Ltd. | Method of growing III-nitride crystal |
| JP2011201766A (ja) * | 2010-03-02 | 2011-10-13 | Mitsubishi Chemicals Corp | 窒化物半導体製造装置、窒化物半導体の製造方法および窒化物半導体結晶 |
| WO2020241761A1 (ja) * | 2019-05-30 | 2020-12-03 | 三菱ケミカル株式会社 | GaN基板ウエハおよびその製造方法 |
| JPWO2020241761A1 (ja) * | 2019-05-30 | 2020-12-03 | ||
| JP7567786B2 (ja) | 2019-05-30 | 2024-10-16 | 三菱ケミカル株式会社 | GaN基板ウエハおよびその製造方法 |
| US12476108B2 (en) | 2019-05-30 | 2025-11-18 | Mitsubishi Chemical Corporation | GaN substrate wafer and production method for same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007023722A1 (ja) | 2009-02-26 |
| TW200720497A (en) | 2007-06-01 |
| KR20080037606A (ko) | 2008-04-30 |
| US20090032907A1 (en) | 2009-02-05 |
| EP1930485A4 (en) | 2010-06-09 |
| EP1930485A1 (en) | 2008-06-11 |
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