KR102121097B1 - 반도체 기판 및 반도체 소자 - Google Patents
반도체 기판 및 반도체 소자 Download PDFInfo
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- KR102121097B1 KR102121097B1 KR1020167028953A KR20167028953A KR102121097B1 KR 102121097 B1 KR102121097 B1 KR 102121097B1 KR 1020167028953 A KR1020167028953 A KR 1020167028953A KR 20167028953 A KR20167028953 A KR 20167028953A KR 102121097 B1 KR102121097 B1 KR 102121097B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 117
- 239000000758 substrate Substances 0.000 title claims abstract description 76
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 136
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 106
- 150000004767 nitrides Chemical class 0.000 claims abstract description 27
- 229910052723 transition metal Inorganic materials 0.000 claims description 39
- 150000003624 transition metals Chemical class 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000005533 two-dimensional electron gas Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
Description
도 2는 본 발명의 실시 형태의 일례를 나타내는 반도체 기판의 단면도이다.
도 3은 본 발명의 실시 형태의 일례를 나타내는 반도체 소자의 단면도이다.
도 4는 실시예 2의 반도체 기판의 깊이 방향의 불순물 농도 분포를 나타내는 도면이다.
도 5는 실시예 5의 반도체 기판의 깊이 방향의 불순물 농도 분포를 나타내는 도면이다.
도 6은 실시예 5의 반도체 기판의 단면도이다.
도 7은 실시예 5의 반도체 소자의 단면도이다.
도 8은 저탄소층 상의 GaN층의 결정성의 저탄소층의 막 두께 의존성을 나타내는 도면이다.
도 9는 고저항층의 결정성의 성장 온도 의존성을 나타내는 도면이다.
도 10은 고저항층의 탄소 농도의 성장 온도 의존성을 나타내는 도면이다
Claims (16)
- 기판과,
상기 기판 상의 탄소 함유의 질화물계 반도체로 이루어지는 버퍼층과,
상기 버퍼층 상의 탄소 함유의 질화물계 반도체로 이루어지는 고저항층과,
상기 고저항층 상의 질화물계 반도체로 이루어지는 채널층
을 갖는 반도체 기판으로서,
상기 고저항층은,
상기 버퍼층보다도 탄소 농도가 낮은 제1 영역과,
상기 제1 영역과 상기 채널층 사이에 형성되고, 상기 제1 영역보다도 탄소 농도가 높은 제2 영역
을 갖고,
상기 제1 영역이 전이 금속을 포함하고, 상기 제1 영역의 전이 금속 농도가 상기 제2 영역의 전이 금속 농도보다 높은 것을 특징으로 하는, 반도체 기판. - 삭제
- 제1항에 있어서,
상기 제1 영역의 전이 금속 농도가, 1×1017atoms/㎤ 이상, 1×1020atoms/㎤ 이하인 것을 특징으로 하는, 반도체 기판. - 제3항에 있어서,
상기 제1 영역의 전이 금속 농도가, 1×1018atoms/㎤ 이상, 1×1019atoms/㎤ 이하인 것을 특징으로 하는, 반도체 기판. - 제1항에 있어서,
상기 제1 영역이 전이 금속을 포함하고, 상기 제1 영역의 두께가 3㎚ 이상, 3000㎚ 이하인 것을 특징으로 하는, 반도체 기판. - 삭제
- 제3항에 있어서,
상기 제1 영역이 전이 금속을 포함하고, 상기 제1 영역의 두께가 3㎚ 이상, 3000㎚ 이하인 것을 특징으로 하는, 반도체 기판. - 제4항에 있어서,
상기 제1 영역이 전이 금속을 포함하고, 상기 제1 영역의 두께가 3㎚ 이상, 3000㎚ 이하인 것을 특징으로 하는, 반도체 기판. - 삭제
- 제1항, 제3항 내지 제5항, 제7항, 제8항 중 어느 한 항에 있어서,
상기 제1 영역은, 상기 버퍼층과 접하고 있는 것을 특징으로 하는, 반도체 기판. - 제1항, 제3항 내지 제5항, 제7항, 제8항 중 어느 한 항에 있어서,
상기 제1 영역의 탄소 농도가 1×1018atoms/㎤ 미만이고, 상기 제2 영역의 탄소 농도가 1×1018atoms/㎤ 이상, 1×1019atoms/㎤ 이하인 것을 특징으로 하는, 반도체 기판. - 제10항에 있어서,
상기 제1 영역의 탄소 농도가 1×1018atoms/㎤ 미만이고, 상기 제2 영역의 탄소 농도가 1×1018atoms/㎤ 이상, 1×1019atoms/㎤ 이하인 것을 특징으로 하는, 반도체 기판. - 제1항, 제3항 내지 제5항, 제7항, 제8항 중 어느 한 항에 기재된 반도체 기판을 사용하여 제작된 반도체 소자로서, 상기 채널층 상에 전극이 설치되어 있는 것인 것을 특징으로 하는, 반도체 소자.
- 제10항에 기재된 반도체 기판을 사용하여 제작된 반도체 소자로서, 상기 채널층 상에 전극이 설치되어 있는 것인 것을 특징으로 하는, 반도체 소자.
- 제11항에 기재된 반도체 기판을 사용하여 제작된 반도체 소자로서, 상기 채널층 상에 전극이 설치되어 있는 것인 것을 특징으로 하는, 반도체 소자.
- 제12항에 기재된 반도체 기판을 사용하여 제작된 반도체 소자로서, 상기 채널층 상에 전극이 설치되어 있는 것인 것을 특징으로 하는, 반도체 소자.
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JP2014086397A JP6249868B2 (ja) | 2014-04-18 | 2014-04-18 | 半導体基板及び半導体素子 |
JPJP-P-2014-086397 | 2014-04-18 | ||
PCT/JP2015/001371 WO2015159481A1 (ja) | 2014-04-18 | 2015-03-12 | 半導体基板及び半導体素子 |
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KR102121097B1 true KR102121097B1 (ko) | 2020-06-09 |
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JP (1) | JP6249868B2 (ko) |
KR (1) | KR102121097B1 (ko) |
CN (1) | CN106233440B (ko) |
TW (1) | TWI596765B (ko) |
WO (1) | WO2015159481A1 (ko) |
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JP6654957B2 (ja) * | 2015-04-23 | 2020-02-26 | ローム株式会社 | 窒化物半導体デバイス |
CN107546260A (zh) * | 2016-06-29 | 2018-01-05 | 江西省昌大光电科技有限公司 | 一种半绝缘GaN薄膜及其制备方法 |
JP6759886B2 (ja) * | 2016-09-06 | 2020-09-23 | 富士通株式会社 | 半導体結晶基板、半導体装置、半導体結晶基板の製造方法及び半導体装置の製造方法 |
JP6615075B2 (ja) * | 2016-09-15 | 2019-12-04 | サンケン電気株式会社 | 半導体デバイス用基板、半導体デバイス、及び、半導体デバイス用基板の製造方法 |
EP3486939B1 (en) | 2017-11-20 | 2020-04-01 | IMEC vzw | Method for forming a semiconductor structure for a gallium nitride channel device |
WO2020155095A1 (zh) * | 2019-02-01 | 2020-08-06 | 苏州晶湛半导体有限公司 | 一种半导体结构及其制造方法 |
JP7393138B2 (ja) * | 2019-06-24 | 2023-12-06 | 住友化学株式会社 | Iii族窒化物積層体 |
JP7269190B2 (ja) * | 2020-02-27 | 2023-05-08 | 株式会社東芝 | 窒化物結晶、光学装置、半導体装置、窒化物結晶の製造方法 |
CN111952365A (zh) * | 2020-08-14 | 2020-11-17 | 中国科学院半导体研究所 | 碳掺杂调控的GaN基HEMT外延结构及其制作方法 |
JP7388422B2 (ja) * | 2021-12-23 | 2023-11-29 | 信越半導体株式会社 | 窒化物半導体基板の製造方法 |
WO2023127520A1 (ja) * | 2021-12-27 | 2023-07-06 | ローム株式会社 | 窒化物半導体装置およびその製造方法 |
CN119013443A (zh) * | 2022-03-14 | 2024-11-22 | 三菱化学株式会社 | GaN外延基板 |
JP7682391B2 (ja) * | 2022-06-28 | 2025-05-23 | 三菱電機株式会社 | 半導体装置 |
KR102773898B1 (ko) * | 2023-08-16 | 2025-02-27 | 웨이브로드 주식회사 | 반도체 소자 성장용 복합기판 및 그 제조 방법 |
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US9876101B2 (en) | 2018-01-23 |
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JP6249868B2 (ja) | 2017-12-20 |
TW201541635A (zh) | 2015-11-01 |
WO2015159481A1 (ja) | 2015-10-22 |
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