JP6814561B2 - ガス配管システム、化学気相成長装置、成膜方法及びSiCエピタキシャルウェハの製造方法 - Google Patents
ガス配管システム、化学気相成長装置、成膜方法及びSiCエピタキシャルウェハの製造方法 Download PDFInfo
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- 238000005229 chemical vapour deposition Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 230000015572 biosynthetic process Effects 0.000 title claims 2
- 239000007789 gas Substances 0.000 claims description 225
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 7
- 238000001947 vapour-phase growth Methods 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 23
- 229910010271 silicon carbide Inorganic materials 0.000 description 22
- 235000012431 wafers Nutrition 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 239000013078 crystal Substances 0.000 description 10
- 239000012265 solid product Substances 0.000 description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 5
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910003902 SiCl 4 Inorganic materials 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 3
- BUMGIEFFCMBQDG-UHFFFAOYSA-N dichlorosilicon Chemical compound Cl[Si]Cl BUMGIEFFCMBQDG-UHFFFAOYSA-N 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 3
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 3
- 239000005052 trichlorosilane Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NQMRYBIKMRVZLB-UHFFFAOYSA-N methylamine hydrochloride Chemical compound [Cl-].[NH3+]C NQMRYBIKMRVZLB-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- DIIIISSCIXVANO-UHFFFAOYSA-N 1,2-Dimethylhydrazine Chemical compound CNNC DIIIISSCIXVANO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Description
即ち、本発明は、上記課題を解決するため、以下の手段を提供する。
図1は、第1実施形態にかかる化学気相成長装置の模式図である。図1に示す化学気相成長装置100は、ガス配管システム10と、反応炉20と、排気ポンプ30とを備える。反応炉20には、ガス配管システム10から複数のガスが供給される。反応炉20及び排気ポンプ30は、公知のものを用いることができる。
図3は、第2実施形態にかかる化学気相成長装置110の模式図である。第2実施形態にかかる化学気相成長装置110におけるガス配管システム15は、ランライン13が反応炉20に至るまで分離されている点が異なる。その他の構成は、第1実施形態にかかる化学気相成長装置100と同様であり、同一の構成には同一の符号を付している。
図4は、第3実施形態にかかる化学気相成長装置120の模式図である。第3実施形態にかかる化学気相成長装置120におけるガス配管システム16は、一部のベントライン24が排気ライン2に接続され、残りのベントライン24が独立に設けられた別の排気ポンプ31に接続されている点が異なる。その他の構成は、第1実施形態にかかる化学気相成長装置100と同様であり、同一の構成には同一の符号を付している。
Claims (9)
- 内部で気相成長を行う反応炉に複数のガスを供給するランベント方式のガス配管システムであって、
複数の排気ポンプと、
前記複数のガスをそれぞれ送通する複数の供給ラインと、
前記反応炉の排気口から第1排気ポンプへ繋がる排気ラインと、
前記複数の供給ラインからそれぞれ分岐し、前記反応炉に前記複数のガスを供給するランラインと、
前記複数の供給ラインからそれぞれ分岐し、前記排気ラインまたは前記複数の排気ポンプのいずれかに接続される複数のベントラインと、
前記複数の供給ラインの分岐点にそれぞれ設けられ、ランライン側にガスを流すかベントライン側にガスを流すかを切り替える複数のバルブと、を備え、
前記複数のベントラインは前記排気ラインに至るまで分離され、前記排気ラインの内径は前記複数のベントラインのそれぞれの内径より大きく、
前記複数のベントラインのうち、少なくとも一つのベントラインは、前記排気ラインに接続され、残りのベントラインは独立に設けられた別の排気ポンプに接続されており、
常温で互いに反応して固体の化合物を生成する堆積原因ガスを、それぞれ前記一つのベントラインと、前記残りのベントラインとに送通する、ガス配管システム。 - 前記ランラインにおいて、前記分岐点から繋がるそれぞれの配管は、前記反応炉に至るまでに合流する請求項1に記載のガス配管システム。
- 前記複数のベントラインのそれぞれとの接続点における前記排気ラインの配管内径が3cm以上である請求項1または2に記載のガス配管システム。
- 請求項1〜3のいずれか一項に記載のガス配管システムと、前記ガス配管システムに接続された反応炉と、を備える化学気相成長装置。
- 請求項4に記載の化学気相成長装置を用いた成膜方法。
- 請求項5に記載の成膜方法を用いたSiCエピタキシャルウェハの製造方法であって、
前記堆積原因ガスが、分子内にN原子を含み、かつN原子同士の2重結合、3重結合のいずれも有さない分子で構成される塩基性のN系ガスと、分子内にCl原子を含む分子で構成されるCl系ガスであるSiCエピタキシャルウェハの製造方法。 - 内部で気相成長を行う反応炉に複数のガスを供給するランベント方式のガス配管システムであって、
前記複数のガスをそれぞれ送通する複数の供給ラインと、
前記反応炉の排気口から排気ポンプへ繋がる排気ラインと、
前記複数の供給ラインからそれぞれ分岐し、前記反応炉に前記複数のガスを供給するランラインと、
前記複数の供給ラインからそれぞれ分岐し、前記排気ラインに接続される複数のベントラインと、
前記複数の供給ラインの分岐点にそれぞれ設けられ、ランライン側にガスを流すかベントライン側にガスを流すかを切り替える複数のバルブと、を備え、
前記複数のベントラインは前記排気ラインに至るまで分離され、前記排気ラインの内径は前記複数のベントラインのそれぞれの内径より大きく、
前記ランラインにおいて、前記分岐点から繋がるそれぞれの配管は、前記反応炉に至るまでに合流し、
前記複数のベントラインのそれぞれとの接続点における前記排気ラインの配管内径が3cm以上であるガス配管システムと、
前記ガス配管システムに接続された反応炉と、を備える化学気相成長装置を用いて、
常温で互いに反応して固体の化合物を生成する堆積原因ガスを、それぞれ分離された異なるベントラインに送通する、
成膜方法。 - 前記複数のベントラインが合流する前記排気ラインにおいて、前記堆積原因ガスのそれぞれのガス濃度が前記排気ラインを送通するガス全体の5%以下である、請求項7に記載の成膜方法。
- 前記堆積原因ガスが、分子内にN原子を含み、かつN原子同士の2重結合、3重結合のいずれも有さない分子で構成される塩基性のN系ガスと、分子内にCl原子を含む分子で構成されるCl系ガスである、請求項7または8に記載の成膜方法を用いたSiCエピタキシャルウェハの製造方法。
Priority Applications (4)
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JP2016135282A JP6814561B2 (ja) | 2016-07-07 | 2016-07-07 | ガス配管システム、化学気相成長装置、成膜方法及びSiCエピタキシャルウェハの製造方法 |
US16/314,084 US20190169742A1 (en) | 2016-07-07 | 2017-06-12 | GAS PIPING SYSTEM, CHEMICAL VAPOR DEPOSITION DEVICE, FILM DEPOSITION METHOD, AND METHOD FOR PRODUCING SiC EPITAXIAL WAFER |
PCT/JP2017/021604 WO2018008334A1 (ja) | 2016-07-07 | 2017-06-12 | ガス配管システム、化学気相成長装置、成膜方法及びSiCエピタキシャルウェハの製造方法 |
CN201780038036.0A CN109314048A (zh) | 2016-07-07 | 2017-06-12 | 气体配管系统、化学气相生长装置、成膜方法和SiC外延晶片的制造方法 |
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JP7365946B2 (ja) * | 2020-03-18 | 2023-10-20 | 東京エレクトロン株式会社 | 基板処理装置及びクリーニング方法 |
CN116240625B (zh) * | 2023-03-22 | 2024-08-23 | 季华恒一(佛山)半导体科技有限公司 | 一种用于外延设备的压力调节装置及工艺气体切换方法 |
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JPH0627944Y2 (ja) * | 1987-09-07 | 1994-07-27 | 古河電気工業株式会社 | 気相成長装置 |
JPH07118459B2 (ja) * | 1987-09-30 | 1995-12-18 | 古河電気工業株式会社 | 気相成長装置のリークチェック方法 |
JP2757944B2 (ja) * | 1988-11-25 | 1998-05-25 | 株式会社日立製作所 | 薄膜形成装置 |
JP2597245B2 (ja) * | 1991-03-22 | 1997-04-02 | ローム株式会社 | Cvd装置のための排気装置 |
CN1788106B (zh) * | 2003-05-13 | 2011-06-08 | 东京毅力科创株式会社 | 使用原料气体和反应性气体的处理装置 |
US20050103265A1 (en) * | 2003-11-19 | 2005-05-19 | Applied Materials, Inc., A Delaware Corporation | Gas distribution showerhead featuring exhaust apertures |
JP2005322668A (ja) * | 2004-05-06 | 2005-11-17 | Renesas Technology Corp | 成膜装置および成膜方法 |
JP2006339461A (ja) * | 2005-06-02 | 2006-12-14 | Elpida Memory Inc | 半導体装置製造用成膜装置および成膜方法 |
JP5971110B2 (ja) * | 2012-12-20 | 2016-08-17 | 住友電気工業株式会社 | 炭化珪素基板の製造方法および製造装置 |
JP6362266B2 (ja) * | 2014-12-19 | 2018-07-25 | 昭和電工株式会社 | SiCエピタキシャルウェハの製造方法及びSiCエピタキシャル成長装置 |
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US20190169742A1 (en) | 2019-06-06 |
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