JP7199286B2 - 基板処理装置 - Google Patents
基板処理装置 Download PDFInfo
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- JP7199286B2 JP7199286B2 JP2019067832A JP2019067832A JP7199286B2 JP 7199286 B2 JP7199286 B2 JP 7199286B2 JP 2019067832 A JP2019067832 A JP 2019067832A JP 2019067832 A JP2019067832 A JP 2019067832A JP 7199286 B2 JP7199286 B2 JP 7199286B2
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/458—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
- C23C16/4584—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally the substrate being rotated
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Description
最初に、CVD(Chemical Vapor Deposition:化学気相堆積)により、シリコン膜を成膜する場合について説明する。CVDによりアモルファス(非晶質)シリコン膜を成膜する方法としては、原料ガスとして、モノシラン(SiH4)を用いる方法と、ジシラン(Si2H6)を用いる方法とがある。図1に示されるように、表面に凹凸が形成された基板に、モノシランを原料ガスとし、CVDによりアモルファスシリコン膜を成膜した場合には、成膜されたアモルファスシリコン膜は、ステップカバレッジは良好であるが、表面粗さはあまり良好ではない。また、凹凸のある基板にジシランを原料ガスとして、CVDによりアモルファスシリコン膜を成膜した場合には、成膜されたアモルファスシリコン膜は、表面粗さは良好であるが、ステップカバレッジはあまり良好ではない。
本実施の形態における基板処理装置について、図2及び図3に基づき説明する。本実施の形態における基板処理装置は、複数の基板に同時に一括して成膜をすることのできるバッチ式の縦型の基板処理装置である。
次に、本実施の形態における基板処理装置10により半導体ウエハWに、半導体膜であるシリコン膜を成膜する方法について説明する。まず、昇降部68により複数の半導体ウエハWを保持したウエハボート38を処理容器34の内部に搬入し、蓋体36により処理容器34の下端の開口部を塞ぎ密閉し、排気部41により処理容器34の内部の圧力が所定の圧力になるまで排気する。この後、加熱部42により処理容器34内の半導体ウエハW及びガス供給管76内の混合ガスを加熱するとともに、ガス供給管76の分散ノズル部76Aのガス孔76Bから第1の原料ガスと第2の原料ガスとの混合ガスを供給し、シリコン膜を成膜する。この際、ウエハボート38を回転させることにより、半導体ウエハWを回転させて、シリコン膜の成膜を行う。
次に、本実施の形態における基板処理装置を用いて上記のような成膜方法により成膜されたシリコン膜と、図9に示される構造の基板処理装置を用いて成膜されたシリコン膜とにおいて、基板間における膜厚の面内均一性について説明する。尚、膜厚の面内均一性の値は、基板に成膜されたシリコン膜の最も厚い膜厚をMAX、最も薄い膜厚をMIN、膜厚の平均をAVEとした場合、(MAX-MIN)/AVE×(1/2)×100より算出される値である。
次に、本実施の形態における半導体装置の成膜方法の変形例について、図12~図14に基づき説明する。
34 処理容器
36 蓋体
40 ガス供給部
41 排気部
42 加熱部
44 内管
46 外管
48 ノズル収容部
50 凸部
52 開口
54 マニホールド
76 ガス供給管
76A 分散ノズル部
76B ガス孔
78 ガス供給管
78A 分散ノズル部
78B ガス孔
80 ガス供給管
80A 分散ノズル部
80B ガス孔
95 制御部
110 原料ガス混合部
111 第1の原料ガス供給源
112 流量制御器
113 開閉弁
121 第2の原料ガス供給源
122 流量制御器
123 開閉弁
131 パージガス供給源
132 流量制御器
133 開閉弁
W 半導体ウエハ
Claims (6)
- 内部に複数の基板を所定の間隔で保持する基板保持具を収容する処理容器と、
前記処理容器の内部に、SiまたはGeと、Hとを含む化合物の第1の原料ガスと、SiまたはGeと、ハロゲン元素とを含む化合物の第2の原料ガスとを同時に供給するガス供給部と、
前記処理容器の内部を排気する排気部と、
を有し、
前記ガス供給部は、前記第1の原料ガス及び前記第2の原料ガスを前記基板保持具に保持された複数の基板に放出する複数のガス孔が設けられた分散ノズル部を有しており、
前記分散ノズル部内の前記第1の原料ガス及び前記第2の原料ガスを加熱する加熱部を有し、
前記ガス供給部は、原料ガス混合部に接続されており、前記原料ガス混合部において、前記第1の原料ガスと前記第2の原料ガスとが混合された混合ガスが、前記処理容器の内部の前記基板保持具に保持された複数の基板に向けて供給される、基板処理装置。 - 前記複数の基板は、前記処理容器の内部に前記基板面に垂直方向に配置されており、
前記分散ノズル部は、前記基板面に対し垂直方向に伸びており、複数のガス孔が設けられている請求項1に記載の基板処理装置。 - 前記分散ノズル部の複数のガス孔から前記基板に対して、前記第1の原料ガス及び前記第2の原料ガスを平行に吐出し、前記基板を挟んで前記分散ノズル部と対向する位置に設けられた開口から排気する請求項1又は2に記載の基板処理装置。
- 前記第1の原料ガスは、SiH4またはSi2H6であり、
前記第2の原料ガスは、SiCl4、SiHCl3、SiH2Cl2、SiH3Cl、Si2Cl6のうちのいずれかを含む請求項1から3のいずれかに記載の基板処理装置。 - 前記第1の原料ガスは、SiH4であり、
前記第2の原料ガスは、SiH2Cl2である請求項1から3のいずれかに記載の基板処理装置。 - 前記加熱部は、更に前記基板を加熱するものである請求項1から5のいずれかに記載の基板処理装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019067832A JP7199286B2 (ja) | 2019-03-29 | 2019-03-29 | 基板処理装置 |
| US16/821,133 US20200312677A1 (en) | 2019-03-29 | 2020-03-17 | Substrate processing apparatus |
| KR1020200032427A KR102709049B1 (ko) | 2019-03-29 | 2020-03-17 | 기판 처리 장치 |
| CN202010200947.2A CN111748787A (zh) | 2019-03-29 | 2020-03-20 | 基板处理装置 |
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| JP2019067832A JP7199286B2 (ja) | 2019-03-29 | 2019-03-29 | 基板処理装置 |
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| JP2020167307A JP2020167307A (ja) | 2020-10-08 |
| JP7199286B2 true JP7199286B2 (ja) | 2023-01-05 |
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| US (1) | US20200312677A1 (ja) |
| JP (1) | JP7199286B2 (ja) |
| KR (1) | KR102709049B1 (ja) |
| CN (1) | CN111748787A (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013258188A (ja) | 2012-06-11 | 2013-12-26 | Hitachi Kokusai Electric Inc | 基板処理方法と半導体装置の製造方法、および基板処理装置 |
| JP2016105457A (ja) | 2014-11-19 | 2016-06-09 | 株式会社日立国際電気 | 三次元フラッシュメモリ、ダイナミックランダムアクセスメモリ、半導体装置、半導体装置の製造方法、基板処理装置、ガス供給システムおよびプログラム |
| JP2017152426A (ja) | 2016-02-22 | 2017-08-31 | 東京エレクトロン株式会社 | 成膜方法 |
| JP2018148099A (ja) | 2017-03-07 | 2018-09-20 | 東京エレクトロン株式会社 | 基板処理装置 |
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| JP3611780B2 (ja) * | 1992-09-07 | 2005-01-19 | 三菱電機株式会社 | 半導体製造装置 |
| KR100829327B1 (ko) * | 2002-04-05 | 2008-05-13 | 가부시키가이샤 히다치 고쿠사이 덴키 | 기판 처리 장치 및 반응 용기 |
| JP5462885B2 (ja) * | 2009-12-18 | 2014-04-02 | 株式会社日立国際電気 | 半導体装置の製造方法および基板処理装置 |
| JP5610438B2 (ja) * | 2010-01-29 | 2014-10-22 | 株式会社日立国際電気 | 基板処理装置及び半導体装置の製造方法 |
| KR101427726B1 (ko) * | 2011-12-27 | 2014-08-07 | 가부시키가이샤 히다치 고쿠사이 덴키 | 기판 처리 장치 및 반도체 장치의 제조 방법 |
| JP6735580B2 (ja) * | 2016-03-16 | 2020-08-05 | 大陽日酸株式会社 | 半導体装置の製造方法及び基板処理装置 |
| JP6796431B2 (ja) * | 2016-08-12 | 2020-12-09 | 東京エレクトロン株式会社 | 成膜装置、およびそれに用いるガス吐出部材 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013258188A (ja) | 2012-06-11 | 2013-12-26 | Hitachi Kokusai Electric Inc | 基板処理方法と半導体装置の製造方法、および基板処理装置 |
| JP2016105457A (ja) | 2014-11-19 | 2016-06-09 | 株式会社日立国際電気 | 三次元フラッシュメモリ、ダイナミックランダムアクセスメモリ、半導体装置、半導体装置の製造方法、基板処理装置、ガス供給システムおよびプログラム |
| JP2017152426A (ja) | 2016-02-22 | 2017-08-31 | 東京エレクトロン株式会社 | 成膜方法 |
| JP2018148099A (ja) | 2017-03-07 | 2018-09-20 | 東京エレクトロン株式会社 | 基板処理装置 |
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| KR102709049B1 (ko) | 2024-09-25 |
| US20200312677A1 (en) | 2020-10-01 |
| CN111748787A (zh) | 2020-10-09 |
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