JP2016092169A - 半導体装置およびその製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 239000004020 conductor Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 229910002601 GaN Inorganic materials 0.000 abstract description 96
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 abstract description 94
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 58
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 abstract description 57
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 52
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- 239000010703 silicon Substances 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 17
- 239000013078 crystal Substances 0.000 description 14
- 238000000151 deposition Methods 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
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- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 238000004943 liquid phase epitaxy Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H01L29/267—
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02373—Group 14 semiconducting materials
- H01L21/02381—Silicon, silicon germanium, germanium
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/02441—Group 14 semiconducting materials
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- H01L21/02612—Formation types
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Abstract
Description
1a Si基板の表面
1b Si基板の裏面
2 SiC(炭化ケイ素)層
3,5 AlN(窒化アルミニウム)層
3a AlN層の裏面
4,6 GaN(窒化ガリウム)層
7a,7b 複合層
8 Si基板とSiC層とを含む構造(基板)
9,10 電極
9a 電極の表面
21 支持基板
I 電流
Claims (13)
- 導電体層と、
前記導電体層の表面に形成されたSiC層と、
前記SiC層の表面に形成されたAlxGa1-xN(0<x≦1)層と、
前記AlxGa1-xN層の表面に形成された第1導電型のAlyGa1-yN(0≦y<1、y<x)層と、
前記AlyGa1-yN層の表面側に形成された第1の電極と、
前記導電体層の裏面側に形成された第2の電極と、を備え、
前記第1の電極と前記第2の電極との間に流れる電流の大きさは、前記第1の電極と前記第2の電極との間の電圧に依存する、半導体装置。 - 前記AlyGa1-yN層の表面に形成された複合層をさらに備え、
前記複合層は、AlmGa1-mN(0<m≦1、y<m)層と、前記AlmGa1-mN層の表面に形成されたAlnGa1-nN(0≦n<1、n<x、n<m)層とを含み、
前記第1の電極は、前記導電体層から最も遠い前記AlnGa1-nN層よりも表面側に形成される、請求項1に記載の半導体装置。 - 前記AlyGa1-yN層および前記AlnGa1-nN層の各々はn型の導電型を有しており、前記AlyGa1-yN層および前記AlnGa1-nN層の各々にはSiがドープされている、請求項2に記載の半導体装置。
- 前記AlyGa1-yN層および前記AlnGa1-nN層の各々の厚さは、50nm以上5μm以下である、請求項2または3のいずれかに記載の半導体装置。
- 前記AlxGa1-xN層および前記AlmGa1-mN層の各々の厚さは、0より大きく15nm以下である、請求項2〜4のいずれかに記載の半導体装置。
- 前記複合層は、1層以上4層以下である、請求項2〜5のいずれかに記載の半導体装置。
- 前記導電体層はSi基板である、請求項1〜6のいずれかに記載の半導体装置。
- 導電体層と、前記導電体層の表面に形成されたSiC層とを含む基板を準備する工程と、
前記SiC層の表面にAlxGa1-xN(0<x≦1)層を成膜する工程と、
前記AlxGa1-xN層の表面に第1導電型のAlyGa1-yN層(0≦y<1、y<x)を成膜する工程と、
前記AlyGa1-yN層の表面にAlmGa1-mN(0<m≦1、y<m)層を、前記AlyGa1-yN層の成膜温度よりも低温で成膜する工程と、
前記AlmGa1-mN層の表面にAlnGa1-nN層(0≦n<1、n<x、n<m)層を、前記AlmGa1-mN層の成膜温度よりも高温で成膜する工程と、
前記AlnGa1-nN層の表面側に第1の電極を形成する工程と、
前記AlnGa1-nN層の裏面側に第2の電極を形成する工程とを備え、
前記第1の電極と前記第2の電極との間に流れる電流の大きさは、前記第1の電極と前記第2の電極との間の電圧に依存する、半導体装置の製造方法。 - 前記AlyGa1-yN層を成膜する工程において、前記AlyGa1-yN層の成膜中にSiをドープする、請求項8に記載の半導体装置の製造方法。
- 前記AlnGa1-nN層を成膜する工程において、前記AlnGa1-nN層の成膜中にSiをドープする、請求項8または9に記載の半導体装置の製造方法。
- 前記AlxGa1-xN層、前記AlyGa1-yN層、前記AlmGa1-mN層、および前記AlnGa1-nN層を成膜した後で、前記導電体層を除去する工程と、
前記導電体層を除去した後で、前記第2の電極を形成する工程において、前記AlnGa1-nN層の裏面側に前記第2の電極を形成する、請求項8〜10のいずれかに記載の半導体装置の製造方法。 - 前記導電体層を除去する工程において、前記基板を除去する、請求項11に記載の半導体装置の製造方法。
- 前記導電体層を除去する工程において、前記基板から最も遠い前記AlnGa1-nN層を残して、前記AlnGa1-nN層の裏面側に形成された全ての層を除去する、請求項12に記載の半導体装置の製造方法。
Priority Applications (7)
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JP2014224076A JP6266490B2 (ja) | 2014-11-04 | 2014-11-04 | 半導体装置およびその製造方法 |
PCT/JP2015/072863 WO2016072122A1 (ja) | 2014-11-04 | 2015-08-12 | 半導体装置およびその製造方法 |
US15/521,697 US10186585B2 (en) | 2014-11-04 | 2015-08-12 | Semiconductor device and method for manufacturing the same |
CN201580058266.4A CN107004724B (zh) | 2014-11-04 | 2015-08-12 | 半导体装置及其制造方法 |
EP15856987.1A EP3217436B8 (en) | 2014-11-04 | 2015-08-12 | Semiconductor device and production method therefor |
KR1020177015043A KR102510589B1 (ko) | 2014-11-04 | 2015-08-12 | 반도체 장치 및 이의 제조 방법 |
TW104132559A TWI688106B (zh) | 2014-11-04 | 2015-10-02 | 半導體裝置及其製造方法 |
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JP2020516070A (ja) * | 2017-03-31 | 2020-05-28 | ケンブリッジ エンタープライズ リミティッド | 閃亜鉛鉱構造iii族窒化物 |
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JP6925117B2 (ja) * | 2016-11-18 | 2021-08-25 | エア・ウォーター株式会社 | 化合物半導体基板の製造方法および化合物半導体基板 |
EP3503163A1 (en) * | 2017-12-21 | 2019-06-26 | EpiGan NV | A method for forming a silicon carbide film onto a silicon substrate |
US11521964B2 (en) * | 2018-06-29 | 2022-12-06 | Intel Corporation | Schottky diode structures and integration with III-V transistors |
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JP2020516070A (ja) * | 2017-03-31 | 2020-05-28 | ケンブリッジ エンタープライズ リミティッド | 閃亜鉛鉱構造iii族窒化物 |
JP7309611B2 (ja) | 2017-03-31 | 2023-07-18 | ケンブリッジ エンタープライズ リミティッド | 閃亜鉛鉱構造iii族窒化物 |
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CN107004724A (zh) | 2017-08-01 |
US20170236907A1 (en) | 2017-08-17 |
WO2016072122A1 (ja) | 2016-05-12 |
EP3217436A4 (en) | 2018-06-20 |
CN107004724B (zh) | 2020-10-30 |
EP3217436A1 (en) | 2017-09-13 |
JP6266490B2 (ja) | 2018-01-24 |
TW201630198A (zh) | 2016-08-16 |
KR102510589B1 (ko) | 2023-03-17 |
EP3217436B1 (en) | 2020-12-30 |
KR20170108939A (ko) | 2017-09-27 |
US10186585B2 (en) | 2019-01-22 |
EP3217436B8 (en) | 2021-03-10 |
TWI688106B (zh) | 2020-03-11 |
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