JP2010062535A - Cvdを用いて半導体ウェハに層を堆積させる方法及び前記方法を実施するためのチャンバ - Google Patents
Cvdを用いて半導体ウェハに層を堆積させる方法及び前記方法を実施するためのチャンバ Download PDFInfo
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- C23C16/22—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 deposition of inorganic material, other than metallic material
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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
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- C23C16/481—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 by irradiation, e.g. photolysis, radiolysis, particle radiation by radiant heating of the substrate
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Abstract
【解決手段】平面Eと窓5との間の距離Dは前記窓5の中央領域7において及び前記窓5の周辺領域8において外側が内側よりも大きく、かつ前記距離Dの半径方向のプロフィールの前記中央領域7と前記周辺領域8との境界部における接線は前記平面と共に15度以上でかつ25度以下の角度を形成するように選択することにより、堆積ガスが前記半導体ウェハ4に案内される速度を変更し、その際、前記窓5の中央領域7は前記半導体ウェハ4をカバーする前記窓5の内部領域であり、かつ前記窓5の周辺領域8は前記半導体ウェハ4をカバーしない前記窓の外部領域8であることを特徴とする、半導体ウェハ4に層を堆積させる方法。
【選択図】図1
Description
直径300mmのシリコンからなる半導体ウェハに、それぞれシリコンからなるエピタキシャル層を堆積させた。前記窓の構成が、前記半導体ウェハに堆積される層の厚さの半径方向のプロフィールにどのように作用するかを試験した。本発明の場合に、距離Dの平面Eからの半径方向の推移が図2の図面に対応する窓だけを構成した。前記窓を備えたチャンバ中で被覆された半導体ウェハの得られた層の厚さのプロフィールは図3で示した(実施例)。
Claims (8)
- チャンバのガス入口開口部から半導体ウェハを介して前記チャンバのガス出口開口部まで堆積ガスが案内され、前記堆積ガスは、熱放射線に対して透過性の窓により上方が区切られかつ被覆されるべき半導体ウェハの表面がある平面Eにより下方が区切られた通路を通して供給されるチャンバ中で、CVDを用いて半導体ウェハに層を堆積させる方法において、前記平面と前記窓との間の距離Dは前記窓の中央領域において及び前記窓の周辺領域において外側が内側よりも大きく、かつ前記距離の半径方向のプロフィールの前記中央領域と前記周辺領域との境界部における接線は前記平面と共に15℃以上でかつ25℃以下の角度を形成するように選択することにより、前記堆積ガスが前記半導体ウェハに案内される速度を変更し、その際、前記窓の中央領域は前記半導体ウェハをカバーする前記窓の内部領域であり、かつ前記窓の周辺領域は前記半導体ウェハをカバーしない前記窓の外部領域である、半導体ウェハに層を堆積させる方法。
- 前記窓の中央領域において、前記平面からの前記窓の最も大きな距離と最も小さな距離との差Dmax−Dminが、0.5mm以上でありかつ2mm以下である、請求項1記載の方法。
- 前記窓の周辺領域において、前記平面からの前記窓の最も大きな距離と最も小さな距離との差Dmax−Dminが、0.5mm以上でありかつ2mm以下であることを特徴とする、請求項1又は請求項2記載の方法。
- 堆積ガスを前記チャンバに供給するガス入口開口部、堆積ガスを前記チャンバから搬出するガス出口開口部、被覆すべき半導体ウェハを収容するサセプタ、及び熱放射線に対して透過性でありかつ前記サセプタの反対側に配置されている窓を有する、CVDを用いて半導体ウェハに層を堆積させるためのチャンバにおいて、被覆すべき半導体ウェハの表面がある平面と前記窓との間の距離は、前記窓部の中央領域において及び前記窓の周辺領域において、外側が内側よりも大きく、かつ前記距離の半径方向のプロフィールの前記中央領域と前記周辺領域との境界における接線は前記平面と共に15゜以上でかつ25℃以下の角度を形成し、その際、前記窓の中央領域は前記半導体ウェハをカバーする窓の内部領域であり、かつ前記窓の周辺領域は前記半導体ウェハをカバーしない窓の外部領域である、CVDを用いて半導体ウェハに層を堆積させるためのチャンバ。
- 前記窓の中央領域において、前記平面からの前記窓の最も大きな距離と最も小さな距離との差Dmax−Dminが、0.5mm以上でありかつ2mm以下である、請求項4記載のチャンバ。
- 前記窓の周辺領域において、前記平面からの前記窓の最も大きな距離と最も小さな距離との差Dmax−Dminが、0.5mm以上でありかつ2mm以下である、請求項4又は請求項5記載のチャンバ。
- 前記距離Dが25〜35mmである、請求項4から6までのいずれか1項記載のチャンバ。
- 層の厚さの変数を表しかつ式R=100%×(tmax−tmin)/2×tmにより計算されるパラメータRは0.5%より小さく、前記式中でtmaxは前記層の最も大きな厚さを表し、tminは前記層の最も小さな厚さを表し、かつtmは前記層の平均厚さを表す、層の厚さが不均一であるエピタキシャル層を備えた半導体ウェハ。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008034260.2A DE102008034260B4 (de) | 2008-07-16 | 2008-07-16 | Verfahren zum Abscheiden einer Schicht auf einer Halbleiterscheibe mittels CVD in einer Kammer und Kammer zum Abscheiden einer Schicht auf einer Halbleiterscheibe mittels CVD |
| DE102008034260.2 | 2008-07-16 |
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| Publication Number | Publication Date |
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| JP2010062535A true JP2010062535A (ja) | 2010-03-18 |
| JP5121787B2 JP5121787B2 (ja) | 2013-01-16 |
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| JP2009164437A Active JP5121787B2 (ja) | 2008-07-16 | 2009-07-13 | Cvdを用いて半導体ウェハに層を堆積させる方法及び前記方法を実施するためのチャンバ |
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| Country | Link |
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| US (1) | US8283262B2 (ja) |
| JP (1) | JP5121787B2 (ja) |
| KR (1) | KR101116548B1 (ja) |
| CN (1) | CN101634014B (ja) |
| DE (1) | DE102008034260B4 (ja) |
| SG (1) | SG158820A1 (ja) |
| TW (1) | TWI386525B (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100015402A1 (en) * | 2008-07-16 | 2010-01-21 | Siltronic Ag | Method for depositing a layer on a semiconductor wafer by means of cvd and chamber for carrying out the method |
| JP5343162B1 (ja) * | 2012-10-26 | 2013-11-13 | エピクルー株式会社 | エピタキシャル成長装置 |
| JP2015002286A (ja) * | 2013-06-17 | 2015-01-05 | 株式会社Sumco | エピタキシャルウェーハの製造方法及びその製造装置 |
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| DE102010021547A1 (de) | 2010-05-20 | 2011-11-24 | Konstantinos Fostiropoulos | Verfahren und Vorrichtung zur Beschichtung von Substraten im Vakuumdepositionsverfahren |
| SG11201701463XA (en) * | 2014-09-05 | 2017-03-30 | Applied Materials Inc | Atmospheric epitaxial deposition chamber |
| SG11201701467RA (en) * | 2014-09-05 | 2017-03-30 | Applied Materials Inc | Upper dome for epi chamber |
| US11060203B2 (en) | 2014-09-05 | 2021-07-13 | Applied Materials, Inc. | Liner for epi chamber |
| US10760161B2 (en) | 2014-09-05 | 2020-09-01 | Applied Materials, Inc. | Inject insert for EPI chamber |
| KR20180074273A (ko) * | 2016-12-23 | 2018-07-03 | 에스케이실트론 주식회사 | 에피텍셜 웨이퍼 제조 방법 및 장치 |
| US12084770B2 (en) | 2020-08-18 | 2024-09-10 | Globalwafers Co., Ltd. | Window for chemical vapor deposition systems and related methods |
| KR102457294B1 (ko) * | 2020-09-15 | 2022-10-21 | 에스케이실트론 주식회사 | 돔 어셈블리 및 에피택셜 리액터 |
| KR102693737B1 (ko) * | 2022-02-10 | 2024-08-13 | 에스케이실트론 주식회사 | 에피 챔버용 상부 돔 |
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- 2009-06-12 KR KR1020090052474A patent/KR101116548B1/ko active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100015402A1 (en) * | 2008-07-16 | 2010-01-21 | Siltronic Ag | Method for depositing a layer on a semiconductor wafer by means of cvd and chamber for carrying out the method |
| US8283262B2 (en) * | 2008-07-16 | 2012-10-09 | Siltronic Ag | Method for depositing a layer on a semiconductor wafer by means of CVD and chamber for carrying out the method |
| JP5343162B1 (ja) * | 2012-10-26 | 2013-11-13 | エピクルー株式会社 | エピタキシャル成長装置 |
| JP2015002286A (ja) * | 2013-06-17 | 2015-01-05 | 株式会社Sumco | エピタキシャルウェーハの製造方法及びその製造装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101634014B (zh) | 2012-04-18 |
| TWI386525B (zh) | 2013-02-21 |
| DE102008034260A1 (de) | 2010-01-21 |
| US8283262B2 (en) | 2012-10-09 |
| CN101634014A (zh) | 2010-01-27 |
| JP5121787B2 (ja) | 2013-01-16 |
| DE102008034260B4 (de) | 2014-06-26 |
| TW201009137A (en) | 2010-03-01 |
| KR20100008751A (ko) | 2010-01-26 |
| KR101116548B1 (ko) | 2012-02-28 |
| SG158820A1 (en) | 2010-02-26 |
| US20100015402A1 (en) | 2010-01-21 |
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