JP2015002209A - 気相成長装置および気相成長方法 - Google Patents
気相成長装置および気相成長方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 151
- 238000007740 vapor deposition Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 claims abstract description 593
- 238000010926 purge Methods 0.000 claims abstract description 159
- 230000008569 process Effects 0.000 claims abstract description 120
- 239000001257 hydrogen Substances 0.000 claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 29
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 238000001947 vapour-phase growth Methods 0.000 claims description 51
- 239000004065 semiconductor Substances 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 239000012071 phase Substances 0.000 claims 1
- 230000008021 deposition Effects 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 7
- 235000012431 wafers Nutrition 0.000 description 40
- 229910002601 GaN Inorganic materials 0.000 description 14
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 14
- 238000000151 deposition Methods 0.000 description 10
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000012159 carrier gas Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
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- 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
- C23C16/455—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 introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45502—Flow conditions in reaction chamber
- C23C16/45504—Laminar flow
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- 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
- C23C16/301—AIII BV compounds, where A is Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C23C16/303—Nitrides
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- 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
- C23C16/455—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 introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45565—Shower nozzles
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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
- C23C16/44—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
- C23C16/455—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 introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45574—Nozzles for more than one gas
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- 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
- C30B25/14—Feed and outlet means for the gases; Modifying the flow of the reactive gases
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- 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
- C30B25/16—Controlling or regulating
- C30B25/165—Controlling or regulating the flow of the reactive gases
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- 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
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
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- Chemical Vapour Deposition (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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Abstract
Description
本実施形態の気相成長装置は、反応室と、反応室内に設けられ、基板を載置可能な支持部と、第1のプロセスガスを供給する第1のガス供給路と、第2のプロセスガスを供給する第2のガス供給路と、水素および不活性ガスから選ばれる少なくとも1種のガスを含む第1のパージガスと、不活性ガスから選ばれる少なくとも1種のガスを含み第1のパージガスより分子量が大きい第2のパージガスとの混合ガスを供給するパージガス供給路と、を備える。さらに、反応室の上部に配置され、第1のガス供給路に接続され第1の水平面内に配置され互いに平行に延伸する複数の第1の横方向ガス流路と、第1の横方向ガス流路に接続され縦方向に延伸し反応室側に第1のガス噴出孔を有する複数の第1の縦方向ガス流路と、第2のガス供給路に接続され第1の水平面より上方の第2の水平面内に配置され第1の横方向ガス流路と同一方向に互いに平行に延伸する複数の第2の横方向ガス流路と、第2の横方向ガス流路に接続され第1の横方向ガス流路の間を通って縦方向に延伸し反応室側に第2のガス噴出孔を有する複数の第2の縦方向ガス流路と、パージガス供給路に接続され、第1および第2のガス噴出孔より反応室の側壁側に設けられるパージガス噴出孔とを有し、反応室内にガスを供給するシャワープレートと、を備える。
本実施形態の気相成長装置は、パージガス供給路に接続され第1のマスフローコントローラを備え第1のパージガスを供給する第1のパージガス供給路と、パージガス供給路に接続され第2のマスフローコントローラを備え第2のパージガスを供給する第2のパージガス供給路と、第1のマスフローコントローラと第2のマスフローコントローラを制御する制御部を、さらに備える以外は、第1の実施形態と同様である。したがって、第1の実施形態と重複する内容については記述を省略する。
本実施形態の気相成長装置は、反応室と、反応室内に設けられ、基板を載置可能な支持部と、第1のプロセスガスを供給する第1のガス供給路と、第2のプロセスガスを供給する第2のガス供給路と、水素および不活性ガスから選ばれる少なくとも1種のガスを含む第1のパージガスと、不活性ガスから選ばれる少なくとも1種のガスを含み第1のパージガスより分子量が大きい第2のパージガスとの混合ガスを供給するパージガス供給路と、を備える。さらに、反応室の上部に配置され、反応室内にガスを供給するシャワープレートと、を備える。そして、シャワープレートの内側領域にプロセスガス噴出孔が設けられ、シャワープレートの外側領域にパージガスガス噴出孔が設けられる。そして、プロセスガス供給路がプロセスガス噴出孔に接続され、パージガス供給路がパージガス噴出孔に接続される。
11 側壁
12 支持部
14 回転体ユニット
16 加熱部
20 回転駆動機構
31 第1のガス供給路
32 第2のガス供給路
33 第3のガス供給路
37 パージガス供給路
37a 第1のパージガス供給路
37b 第2のパージガス供給路
50 制御部
100 シャワープレート
100a 内側領域
100b 外側領域
101 第1の横方向ガス流路
102 第2の横方向ガス流路
103 第3の横方向ガス流路
107 横方向パージガス流路
111 第1のガス噴出孔
112 第2のガス噴出孔
113 第3のガス噴出孔
117 パージガス噴出孔
121 第1の縦方向ガス流路
122 第2の縦方向ガス流路
123 第3の縦方向ガス流路
131 第1のマニフォールド
132 第2のマニフォールド
133 第3のマニフォールド
141 第1の接続流路
142 第2の接続流路
143 第3の接続流路
147 パージガス接続流路
Claims (6)
- 反応室と、
前記反応室内に設けられ、基板を載置可能な支持部と、
第1のプロセスガスを供給する第1のガス供給路と、
第2のプロセスガスを供給する第2のガス供給路と、
水素および不活性ガスから選ばれる少なくとも1種のガスを含む第1のパージガスと、不活性ガスから選ばれる少なくとも1種のガスを含み前記第1のパージガスより分子量が大きい第2のパージガスとの混合ガスを供給するパージガス供給路と、
前記反応室の上部に配置され、
前記第1のガス供給路に接続され第1の水平面内に配置され互いに平行に延伸する複数の第1の横方向ガス流路と、前記第1の横方向ガス流路に接続され縦方向に延伸し前記反応室側に第1のガス噴出孔を有する複数の第1の縦方向ガス流路と、
前記第2のガス供給路に接続され前記第1の水平面より上方の第2の水平面内に配置され前記第1の横方向ガス流路と同一方向に互いに平行に延伸する複数の第2の横方向ガス流路と、前記第2の横方向ガス流路に接続され前記第1の横方向ガス流路の間を通って縦方向に延伸し前記反応室側に第2のガス噴出孔を有する複数の第2の縦方向ガス流路と、
前記パージガス供給路に接続され、前記第1および第2のガス噴出孔より前記反応室の側壁側に設けられるパージガス噴出孔とを有し、前記反応室内にガスを供給するシャワープレートと、
を備えることを特徴とする気相成長装置。 - 前記第1または第2のプロセスガスがアンモニアであり、前記第1および第2のパージガスが水素と窒素であることを特徴とする請求項1記載の気相成長装置。
- 前記パージガス供給路に接続され第1のマスフローコントローラを備え前記第1のパージガスを供給する第1のパージガス供給路と、前記パージガス供給路に接続され第2のマスフローコントローラを備え前記第2のパージガスを供給する前記第2のパージガス供給路と、前記第1のマスフローコントローラと前記第2のマスフローコントローラを制御する制御部を、さらに備えることを特徴とする請求項1または請求項2記載の気相成長装置。
- 反応室と、前記反応室の上部に配置され、前記反応室内にガスを供給するシャワープレートと、前記反応室内の前記シャワープレート下方に設けられ、基板を載置可能な支持部とを備える気相成長装置を用いた気相成長方法であって、
前記支持部に基板を載置し、
前記基板を加熱し、
前記シャワープレートの内側領域から、成膜用の複数種のプロセスガスを噴出させ、
前記シャワープレートの外側領域から、水素および不活性ガスから選ばれ、前記複数種のプロセスガスの平均分子量よりも分子量の小さい第1のパージガスと、前記平均分子量よりも分子量の大きい第2のパージガスの混合ガスを噴出させ、
前記基板表面に半導体膜を成膜することを特徴とする気相成長方法。 - 前記複数種のプロセスガスは、有機金属およびアンモニアを含み、前記第1のパージガスが水素であり前記第2のパージガスが窒素であることを特徴とする請求項4記載の気相成長方法。
- 前記混合ガスの平均分子量が、前記複数種のプロセスガスの平均分子量の80%以上120%以下であることを特徴とする請求項4または請求項5記載の気相成長方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013124848A JP6157942B2 (ja) | 2013-06-13 | 2013-06-13 | 気相成長装置および気相成長方法 |
TW103118338A TWI583824B (zh) | 2013-06-13 | 2014-05-27 | 氣相成長裝置以及氣相成長方法 |
US14/301,666 US20140370691A1 (en) | 2013-06-13 | 2014-06-11 | Vapor phase growth apparatus and vapor phase growth method |
KR1020140072119A KR101598911B1 (ko) | 2013-06-13 | 2014-06-13 | 기상 성장 장치 및 기상 성장 방법 |
US15/619,956 US20170275755A1 (en) | 2013-06-13 | 2017-06-12 | Vapor phase growth apparatus and vapor phase growth method |
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JP2016128593A (ja) * | 2015-01-09 | 2016-07-14 | 株式会社日立国際電気 | 基板処理装置、ガス分散ユニット、半導体装置の製造方法およびプログラム |
CN107012444A (zh) * | 2017-05-05 | 2017-08-04 | 宁波工程学院 | 一种化学气相沉积镀制金刚石膜的设备的吹气装置 |
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US10287684B2 (en) * | 2014-07-08 | 2019-05-14 | Kokusai Electric Corporation | Substrate processing apparatus |
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JP6157942B2 (ja) | 2017-07-05 |
KR20140145565A (ko) | 2014-12-23 |
US20170275755A1 (en) | 2017-09-28 |
TWI583824B (zh) | 2017-05-21 |
KR101598911B1 (ko) | 2016-03-02 |
TW201510271A (zh) | 2015-03-16 |
US20140370691A1 (en) | 2014-12-18 |
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