JP5367434B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 104
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 238000000034 method Methods 0.000 claims description 74
- 239000000758 substrate Substances 0.000 claims description 53
- 230000008569 process Effects 0.000 claims description 35
- 229910002704 AlGaN Inorganic materials 0.000 claims description 21
- 239000000470 constituent Substances 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 18
- 150000004767 nitrides Chemical class 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 123
- 230000015572 biosynthetic process Effects 0.000 description 28
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 19
- 235000012431 wafers Nutrition 0.000 description 18
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 238000001451 molecular beam epitaxy Methods 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 9
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 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
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
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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
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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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- H01L21/02367—Substrates
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- H01L21/02612—Formation types
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
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- H01L29/7783—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with confinement of carriers by at least two heterojunctions, e.g. DHHEMT, quantum well HEMT, DHMODFET using III-V semiconductor material
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- H01L29/7787—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
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- H01L29/2003—Nitride compounds
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Junction Field-Effect Transistors (AREA)
- Chemical Vapour Deposition (AREA)
- Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
Description
導電層 3
AlN層 4、4a、4b
AlGaN層 6、10
GaN層 8、12
Claims (7)
- Gaを含む半導体層の成長に用いた成長装置をクリーニングするクリーニング工程と、
前記クリーニング工程においてクリーニングされた成長装置を用いて、Siからなる基板上に、構成元素としてGaを含まず、かつGa不純物濃度が2×1018atoms/cm3以下の窒化物半導体からなる第1層を形成する第1工程と、
前記第1工程を複数の前記基板に行った後、前記第1層上に前記第1層の成長に使用した成長装置を用いて、Gaを含む窒化物半導体からなる第2層を形成する第2工程と、を有することを特徴とする半導体装置の製造方法。 - Siからなる基板上に、構成元素としてGaを含まず、かつGa不純物濃度が2×1018atoms/cm3以下の窒化物半導体からなる第1層を形成する第1工程と、
前記第1層の成長に使用した成長装置とは別の成長装置を用いて、前記第1層上にGaを含む窒化物半導体からなる第2層を形成する第2工程と、
前記第1工程の後であって前記第2工程の前に、前記第1層上に構成元素としてGaを含まない第3層を形成する第3工程と、を有し、
前記第2工程は前記第3工程と同じ成長装置を用いて、連続して行われ、
前記第2層は前記第3層上に形成されることを特徴とする半導体装置の製造方法。 - 前記第1工程の後であって前記第2工程の前に、前記第1層上に構成元素としてGaを含まない第3層を形成する第3工程を有し、
前記第2工程は前記第3工程と連続して行われ、
前記第2層は前記第3層上に形成されることを特徴とする請求項1記載の半導体装置の製造方法。 - 前記第3層は前記第1層と同一の構成元素からなることを特徴とする請求項3記載の半導体装置の製造方法。
- 前記第1層はAlNからなることを特徴とする請求項1または2記載の半導体装置の製造方法。
- 前記第2層はGaN、InGaN、AlGaN及びInAlGaNの少なくとも一つからなることを特徴とする請求項1または2記載の半導体装置の製造方法。
- 前記第1工程に用いられる前記成長装置がMOCVD装置である場合、Alの有機原料中のAlに対するGa含有量が2ppm以下であり、
前記第1工程に用いられる前記成長装置がMBE装置である場合、Alの有機原料中のAlに対するGa含有量が40ppm以下であることを特徴とする請求項1または2記載の半導体装置の成長方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2009087933A JP5367434B2 (ja) | 2009-03-31 | 2009-03-31 | 半導体装置の製造方法 |
US12/750,011 US7947578B2 (en) | 2009-03-31 | 2010-03-30 | Method for fabricating semiconductor device |
EP10158830.9A EP2236646B1 (en) | 2009-03-31 | 2010-03-31 | Method for fabricating semiconductor device |
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JP2009087933A JP5367434B2 (ja) | 2009-03-31 | 2009-03-31 | 半導体装置の製造方法 |
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JP2010239066A JP2010239066A (ja) | 2010-10-21 |
JP2010239066A5 JP2010239066A5 (ja) | 2012-05-17 |
JP5367434B2 true JP5367434B2 (ja) | 2013-12-11 |
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Families Citing this family (8)
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US20120153351A1 (en) * | 2010-12-21 | 2012-06-21 | International Rectifier Corporation | Stress modulated group III-V semiconductor device and related method |
JP5947233B2 (ja) * | 2013-02-08 | 2016-07-06 | 国立大学法人東北大学 | 電界効果トランジスタ |
JP2015156418A (ja) * | 2014-02-20 | 2015-08-27 | 株式会社ニューフレアテクノロジー | 気相成長方法 |
US9899499B2 (en) * | 2014-09-04 | 2018-02-20 | Sunedison Semiconductor Limited (Uen201334164H) | High resistivity silicon-on-insulator wafer manufacturing method for reducing substrate loss |
KR102680861B1 (ko) * | 2016-12-15 | 2024-07-03 | 삼성전자주식회사 | 질화 갈륨 기판의 제조 방법 |
WO2021074971A1 (ja) * | 2019-10-15 | 2021-04-22 | 三菱電機株式会社 | 半導体装置 |
JP7089544B2 (ja) * | 2020-03-25 | 2022-06-22 | 日機装株式会社 | 窒化物半導体素子 |
JP7345623B1 (ja) | 2022-12-15 | 2023-09-15 | 日機装株式会社 | 成膜部材の製造方法 |
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NL6615059A (ja) * | 1966-10-25 | 1968-04-26 | ||
US3869322A (en) * | 1973-10-15 | 1975-03-04 | Ibm | Automatic P-N junction formation during growth of a heterojunction |
US5270263A (en) * | 1991-12-20 | 1993-12-14 | Micron Technology, Inc. | Process for depositing aluminum nitride (AlN) using nitrogen plasma sputtering |
DE69530678T2 (de) * | 1994-02-03 | 2004-04-01 | Ngk Insulators, Ltd., Nagoya | Aluminiumnitrid-sinterkörper und herstellungsverfahren dafür |
JP3603598B2 (ja) * | 1997-08-04 | 2004-12-22 | 住友化学株式会社 | 3−5族化合物半導体の製造方法 |
US6649287B2 (en) | 2000-12-14 | 2003-11-18 | Nitronex Corporation | Gallium nitride materials and methods |
US7501023B2 (en) * | 2001-07-06 | 2009-03-10 | Technologies And Devices, International, Inc. | Method and apparatus for fabricating crack-free Group III nitride semiconductor materials |
JP2006044982A (ja) * | 2004-08-04 | 2006-02-16 | Sumitomo Electric Ind Ltd | 窒化物半導体単結晶基板とその合成方法 |
US7544963B2 (en) * | 2005-04-29 | 2009-06-09 | Cree, Inc. | Binary group III-nitride based high electron mobility transistors |
US9157169B2 (en) * | 2005-09-14 | 2015-10-13 | International Rectifier Corporation | Process for manufacture of super lattice using alternating high and low temperature layers to block parasitic current path |
US7777217B2 (en) * | 2005-12-12 | 2010-08-17 | Kyma Technologies, Inc. | Inclusion-free uniform semi-insulating group III nitride substrate and methods for making same |
US20080054248A1 (en) * | 2006-09-06 | 2008-03-06 | Chua Christopher L | Variable period variable composition supperlattice and devices including same |
JP5079361B2 (ja) * | 2007-03-23 | 2012-11-21 | 日本碍子株式会社 | AlGaN結晶層の形成方法 |
JP2009007205A (ja) * | 2007-06-28 | 2009-01-15 | Sumitomo Electric Ind Ltd | 基板生産物を作製する方法 |
JP5431667B2 (ja) * | 2007-10-01 | 2014-03-05 | 富士電機株式会社 | 窒化ガリウム半導体装置 |
JP4822457B2 (ja) * | 2008-03-24 | 2011-11-24 | 沖電気工業株式会社 | 半導体装置の製造方法 |
JP5112370B2 (ja) * | 2009-03-23 | 2013-01-09 | 住友電工デバイス・イノベーション株式会社 | 半導体装置の製造方法 |
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EP2236646B1 (en) | 2018-06-13 |
US20100248459A1 (en) | 2010-09-30 |
JP2010239066A (ja) | 2010-10-21 |
EP2236646A1 (en) | 2010-10-06 |
US7947578B2 (en) | 2011-05-24 |
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