JP7285890B2 - SiCエピタキシャルウェハ及びSiCエピタキシャルウェハの製造方法 - Google Patents
SiCエピタキシャルウェハ及びSiCエピタキシャルウェハの製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000000758 substrate Substances 0.000 claims description 70
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 46
- 229910052796 boron Inorganic materials 0.000 claims description 46
- 238000010438 heat treatment Methods 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 29
- 239000012535 impurity Substances 0.000 claims description 25
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 238000010926 purge Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000001004 secondary ion mass spectrometry Methods 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 118
- 229910010271 silicon carbide Inorganic materials 0.000 description 116
- 239000007789 gas Substances 0.000 description 49
- 235000012431 wafers Nutrition 0.000 description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000005259 measurement Methods 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- BUMGIEFFCMBQDG-UHFFFAOYSA-N dichlorosilicon Chemical compound Cl[Si]Cl BUMGIEFFCMBQDG-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/18—Epitaxial-layer growth characterised by the substrate
- C30B25/20—Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
- C30B25/205—Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer the substrate being of insulating material
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Description
直径が150mmのSiC基板を準備した。図3に示す成膜装置100と同様の縦型炉を用いてSiC基板1上にエピタキシャル層2を成膜した。昇温工程は3段階として、2回昇温速度を変更した。1回目の昇温速度(第1昇温速度)は、100℃/min以上であった。2回目の昇温速度(第2昇温速度)は、第1昇温速度の80%未満とした。3回目の昇温速度(第3昇温速度)は、第2昇温速度の80%未満とした。成膜温度は、1600℃以上1700℃未満とした。昇温に要する時間は、300秒以上750秒未満であった。
直径が150mmのSiC基板を準備した。比較例1は、SiC基板の側方にガス供給口を有する横型炉を用いた。そして横型炉を用いて、SiC基板1上にエピタキシャル層2を成膜した。昇温工程は1段階で、昇温速度は変更しなかった。昇温速度は、100℃/min以下とした。成膜温度は、1600℃以上1700℃未満とした。昇温に要する時間は、750秒以上であった。
Claims (7)
- SiC基板と、前記SiC基板に積層されたSiCのエピタキシャル層と、を備え、
前記エピタキシャル層は、導電型を決定する不純物と、前記不純物と導電型が異なるボロンと、を含み、
前記エピタキシャル層において、二次イオン質量分析法で測定した前記ボロンの濃度は面内のいずれの位置でも1.0×1014cm-3未満である、SiCエピタキシャルウェハ。 - 直径が150mm以上である、請求項1に記載のSiCエピタキシャルウェハ。
- 直径が200mm以上である、請求項1又は2に記載のSiCエピタキシャルウェハ。
- SiC基板の載置面の上方にガス供給口を有する縦型炉を用いて、SiC基板上にSiCのエピタキシャル層を成膜する成膜工程を有し、
前記成膜工程は、第1昇温速度、第2昇温速度、第3昇温速度の順に昇温速度を変更しながら成膜温度まで昇温する昇温工程を有し、
前記第1昇温速度は、前記第2昇温速度より早く、
前記第2昇温速度は、前記第3昇温速度より早く、
前記第1昇温速度は、100℃/min以上である、SiCエピタキシャルウェハの製造方法。 - 前記SiC基板の前記載置面は、成膜温度において、中心の高さ位置が外周の高さ位置より30μm以上高い、請求項4に記載のSiCエピタキシャルウェハの製造方法。
- 前記成膜工程において、前記SiC基板の裏面からパージガスを供給し、
前記パージガスは、前記SiC基板の外周より20mm以上内側から供給される、請求項4又は5に記載のSiCエピタキシャルウェハの製造方法。 - 前記昇温工程に要する時間は、300秒以上750秒以下である、請求項4~6のいずれか一項に記載のSiCエピタキシャルウェハの製造方法。
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JP2021128273A JP7285890B2 (ja) | 2021-08-04 | 2021-08-04 | SiCエピタキシャルウェハ及びSiCエピタキシャルウェハの製造方法 |
CN202210915297.9A CN115704109A (zh) | 2021-08-04 | 2022-08-01 | SiC外延晶片及SiC外延晶片的制造方法 |
US17/879,474 US11795577B2 (en) | 2021-08-04 | 2022-08-02 | SiC epitaxial wafer and method of manufacturing SiC epitaxial wafer |
JP2023005972A JP2023042593A (ja) | 2021-08-04 | 2023-01-18 | SiCエピタキシャルウェハ |
US18/371,423 US12188152B2 (en) | 2021-08-04 | 2023-09-21 | SiC epitaxial wafer and method of manufacturing SiC epitaxial wafer preliminary class |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012195355A (ja) | 2011-03-15 | 2012-10-11 | Hitachi Kokusai Electric Inc | 基板処理装置及び基板の製造方法 |
JP2013021113A (ja) | 2011-07-11 | 2013-01-31 | Nuflare Technology Inc | 気相成長装置および気相成長方法 |
JP2016171348A (ja) | 2014-11-12 | 2016-09-23 | 住友電気工業株式会社 | 炭化珪素エピタキシャル基板の製造方法および炭化珪素エピタキシャル基板 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4139306B2 (ja) * | 2003-10-02 | 2008-08-27 | 東洋炭素株式会社 | 縦型ホットウォールCVDエピタキシャル装置及びSiCエピタキシャル成長方法 |
JP4387159B2 (ja) | 2003-10-28 | 2009-12-16 | 東洋炭素株式会社 | 黒鉛材料、炭素繊維強化炭素複合材料、及び、膨張黒鉛シート |
WO2006008941A1 (ja) | 2004-07-22 | 2006-01-26 | Toyo Tanso Co., Ltd. | サセプタ |
JP4469396B2 (ja) | 2008-01-15 | 2010-05-26 | 新日本製鐵株式会社 | 炭化珪素単結晶インゴット、これから得られる基板及びエピタキシャルウェハ |
JP4887418B2 (ja) | 2009-12-14 | 2012-02-29 | 昭和電工株式会社 | SiCエピタキシャルウェハの製造方法 |
JP5896297B2 (ja) | 2012-08-01 | 2016-03-30 | 東海カーボン株式会社 | CVD−SiC成形体およびCVD−SiC成形体の製造方法 |
US8940614B2 (en) | 2013-03-15 | 2015-01-27 | Dow Corning Corporation | SiC substrate with SiC epitaxial film |
JP6419414B2 (ja) * | 2013-03-22 | 2018-11-07 | 株式会社東芝 | SiCエピタキシャルウェハおよび半導体装置 |
JP6239250B2 (ja) | 2013-03-22 | 2017-11-29 | 株式会社東芝 | 半導体装置およびその製造方法 |
JP6097681B2 (ja) | 2013-12-24 | 2017-03-15 | 昭和電工株式会社 | SiCエピタキシャルウェハの製造装置およびSiCエピタキシャルウェハの製造方法 |
JP6090287B2 (ja) | 2014-10-31 | 2017-03-08 | トヨタ自動車株式会社 | SiC単結晶の製造方法 |
JP6706786B2 (ja) | 2015-10-30 | 2020-06-10 | 一般財団法人電力中央研究所 | エピタキシャルウェハの製造方法、エピタキシャルウェハ、半導体装置の製造方法及び半導体装置 |
JP6786939B2 (ja) | 2016-08-05 | 2020-11-18 | 富士電機株式会社 | 炭化珪素半導体基板および炭化珪素半導体基板の製造方法 |
JP6757955B2 (ja) | 2016-09-26 | 2020-09-23 | 国立研究開発法人産業技術総合研究所 | n型SiC単結晶基板及びその製造方法、並びにSiCエピタキシャルウェハ |
CN206244914U (zh) | 2016-12-09 | 2017-06-13 | 河北同光晶体有限公司 | 一种制备低硼杂质浓度SiC单晶的生产装置 |
EP3382067B1 (en) | 2017-03-29 | 2021-08-18 | SiCrystal GmbH | Silicon carbide substrate and method of growing sic single crystal boules |
EP3614419B1 (en) | 2017-04-18 | 2024-05-01 | Tokyo Electron Limited | Film-forming device and method for cleaning same |
JP7127283B2 (ja) * | 2018-01-05 | 2022-08-30 | 富士電機株式会社 | 炭化珪素半導体基板および炭化珪素半導体基板の製造方法 |
JP6723416B2 (ja) | 2019-06-28 | 2020-07-15 | 昭和電工株式会社 | SiCエピタキシャルウェハの製造方法 |
JP7285890B2 (ja) | 2021-08-04 | 2023-06-02 | 株式会社レゾナック | SiCエピタキシャルウェハ及びSiCエピタキシャルウェハの製造方法 |
JP7183358B1 (ja) | 2021-08-04 | 2022-12-05 | 昭和電工株式会社 | SiCエピタキシャルウェハ及びSiCエピタキシャルウェハの製造方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012195355A (ja) | 2011-03-15 | 2012-10-11 | Hitachi Kokusai Electric Inc | 基板処理装置及び基板の製造方法 |
JP2013021113A (ja) | 2011-07-11 | 2013-01-31 | Nuflare Technology Inc | 気相成長装置および気相成長方法 |
JP2016171348A (ja) | 2014-11-12 | 2016-09-23 | 住友電気工業株式会社 | 炭化珪素エピタキシャル基板の製造方法および炭化珪素エピタキシャル基板 |
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