JP5412093B2 - 半導体ウェハ製造方法及び半導体装置製造方法 - Google Patents
半導体ウェハ製造方法及び半導体装置製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 241
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 150000004767 nitrides Chemical class 0.000 claims description 139
- 239000000758 substrate Substances 0.000 claims description 84
- 239000013078 crystal Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 23
- 239000010703 silicon Substances 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052733 gallium Inorganic materials 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 294
- 229910002601 GaN Inorganic materials 0.000 description 23
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 17
- 239000012159 carrier gas Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 12
- 125000006850 spacer group Chemical group 0.000 description 10
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 9
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 8
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 230000005533 two-dimensional electron gas Effects 0.000 description 3
- KADIEFRANBIGHU-UHFFFAOYSA-N CC[Mg]C1C=CC=C1 Chemical compound CC[Mg]C1C=CC=C1 KADIEFRANBIGHU-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000005566 electron beam evaporation Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- -1 specifically Chemical compound 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
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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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- H01L29/15—Structures with periodic or quasi periodic potential variation, e.g. multiple quantum wells, superlattices
- H01L29/151—Compositional structures
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Description
本発明の実施の形態に係る半導体ウェハは、図1に示すように、支持基板1と、支持基板1上に設けられ、支持基板1に接する面(下面)2aと対向する面(上面)2bが少なくとも単結晶となっている第1の窒化物系半導体層2と、第1の窒化物系半導体層2の上面側2bに設けられ、窒素とガリウムを含む第2の窒化物系半導体層3とを備える。
実施の形態に係る半導体ウェハ10には、図2に示すように、複数の半導体チップ12が形成される。半導体チップ12は、所定の機能を奏する半導体装置を集積したものである。以下に、上記の製造方法によって製造された半導体ウェハ10を用いて形成された半導体装置の実施例を示す。
本発明の実施の形態に係る半導体装置の第1実施例は、図3に示すように、支持基板1と、支持基板1上に設けられ、支持基板1に接する面(下面)2aと対向する面(上面)2bが少なくとも単結晶となっている第1の窒化物系半導体層2と、第1の窒化物系半導体層2の上面2bに設けられ、窒素とガリウムを含む第2の窒化物系半導体層3と、第2の窒化物系半導体層3に電界を印加する複数の電極4a,4b,4cとを備える高電子移動度トランジスタ(HEMT)である。
本発明の実施の形態に係る半導体装置の第2実施例は、図4に示すように、支持基板1と第1の窒化物系半導体層2の間に少なくとも一部が多結晶状である中間層6を更に設けている点が、図3に示した第1実施例としての半導体装置と比して異なる。他は図3に示した半導体装置と実質的に同様であるので、重複した記載を省略する。
本発明の実施の形態に係る半導体装置の第3実施例は、図5に示すように、第1の窒化物系半導体層2の単結晶となっている面側2bにバッファ層7を更に設けている点が、図3に示した第1実施例としての半導体装置と比して異なる。他は図3に示した半導体装置と実質的に同様であるので、重複した記載を省略する。
本発明の実施の形態に係る半導体装置の第4実施例は、図7に示すように、支持基板1と、支持基板1上に設けられ、上面2bが少なくとも単結晶となっている第1の窒化物系半導体層2と、第1の窒化物系半導体層2の上面2bに設けられ、窒素とガリウムを含む第2の窒化物系半導体層3と、第2の窒化物系半導体層3に電界を印加する複数の電極4e,4dとを備える半導体発光素子である。
上記のように、本発明は実施の形態によって記載したが、この開示の一部をなす記述及び図面はこの発明を限定するものであると理解するべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかになるはずである。
10…半導体ウェハ
12…半導体チップ
2…第1の窒化物系半導体層
3…第2の窒化物系半導体層
30…電子走行層
31…スペーサ層
32…電子供給層
33…第1半導体層
34…活性層
35…第2半導体層
4a〜4e…電極
5…絶縁膜
6…中間層
7…バッファ層
7a…第1バッファ層
7b…第2バッファ層
Claims (2)
- シリコン系基板である支持基板の(111)面上に直接、Alを含む窒化物系半導体からなる単結晶の第1の窒化物系半導体層を成長させ、前記第1の窒化物系半導体層の上面に、窒素とガリウムを含む第2の窒化物系半導体層を成長させる工程
とを含み、前記第1の窒化物系半導体層の形成過程において成長温度に温度傾斜を設けることによって、前記第1の窒化物系半導体層は、前記第2の窒化物系半導体層側に比べて前記支持基板側の結晶性が低く形成されることを特徴とする半導体ウェハ製造方法。 - シリコン系基板である支持基板の(111)面上に直接、Alを含む窒化物系半導体からなる単結晶の第1の窒化物系半導体層を成長させ、前記第1の窒化物系半導体層の上面に、窒素とガリウムを含む第2の窒化物系半導体層を成長させる工程と、
前記第2の窒化物系半導体層に電界を印加する複数の電極を形成する工程
とを含み、前記第1の窒化物系半導体層の形成過程において成長温度に温度傾斜を設けることによって、前記第1の窒化物系半導体層は、前記第2の窒化物系半導体層側に比べて前記支持基板側の結晶性が低く形成されることを特徴とする半導体装置製造方法。
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JP2012146908A (ja) * | 2011-01-14 | 2012-08-02 | Sanken Electric Co Ltd | 半導体ウェハ及び半導体装置 |
KR101761638B1 (ko) | 2011-01-19 | 2017-07-27 | 삼성전자주식회사 | 질화물 반도체 발광소자 |
US9691855B2 (en) * | 2012-02-17 | 2017-06-27 | Epistar Corporation | Method of growing a high quality III-V compound layer on a silicon substrate |
JP6261437B2 (ja) * | 2014-04-09 | 2018-01-17 | サンケン電気株式会社 | 半導体基板の製造方法、及び半導体素子の製造方法 |
JP6499481B2 (ja) * | 2015-03-17 | 2019-04-10 | 古河機械金属株式会社 | Iii族窒化物半導体基板の製造方法 |
JP7071893B2 (ja) * | 2018-07-23 | 2022-05-19 | 株式会社東芝 | 半導体装置及びその製造方法 |
US11309177B2 (en) * | 2018-11-06 | 2022-04-19 | Stmicroelectronics S.R.L. | Apparatus and method for manufacturing a wafer |
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JPH0964477A (ja) * | 1995-08-25 | 1997-03-07 | Toshiba Corp | 半導体発光素子及びその製造方法 |
KR20010029852A (ko) * | 1999-06-30 | 2001-04-16 | 도다 다다히데 | Ⅲ족 질화물계 화합물 반도체 소자 및 그 제조방법 |
JP4375972B2 (ja) * | 2003-01-28 | 2009-12-02 | シャープ株式会社 | 窒化物系iii−v族化合物半導体装置の製造方法 |
KR100616619B1 (ko) * | 2004-09-08 | 2006-08-28 | 삼성전기주식회사 | 질화물계 이종접합 전계효과 트랜지스터 |
KR100674829B1 (ko) * | 2004-10-29 | 2007-01-25 | 삼성전기주식회사 | 질화물계 반도체 장치 및 그 제조 방법 |
JP4369438B2 (ja) * | 2005-04-26 | 2009-11-18 | シャープ株式会社 | 電界効果型トランジスタ |
JP5025168B2 (ja) * | 2006-06-08 | 2012-09-12 | 昭和電工株式会社 | Iii族窒化物半導体積層構造体の製造方法 |
JP4584293B2 (ja) * | 2007-08-31 | 2010-11-17 | 富士通株式会社 | 窒化物半導体装置、ドハティ増幅器、ドレイン電圧制御増幅器 |
-
2008
- 2008-11-20 JP JP2008297068A patent/JP5412093B2/ja active Active
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2009
- 2009-11-17 US US12/620,008 patent/US20100123139A1/en not_active Abandoned
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US20100123139A1 (en) | 2010-05-20 |
JP2010123800A (ja) | 2010-06-03 |
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