JP2013070058A - 処理チャンバにおいて気相成長法によって半導体ウエハの上に層を堆積させるための方法および装置 - Google Patents
処理チャンバにおいて気相成長法によって半導体ウエハの上に層を堆積させるための方法および装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000000151 deposition Methods 0.000 title claims abstract description 39
- 238000001947 vapour-phase growth Methods 0.000 title abstract 2
- 230000008021 deposition Effects 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 10
- 238000007740 vapor deposition Methods 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 235000012431 wafers Nutrition 0.000 description 39
- 239000007789 gas Substances 0.000 description 29
- 238000001816 cooling Methods 0.000 description 7
- 239000000112 cooling gas Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation 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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- 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
- C23C16/22—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
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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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Abstract
【解決手段】上方カバー2および下方カバー3を有する処理チャンバ1において気相成長法によって半導体ウエハ5の上に層を堆積する方法および装置が提供される。方法は、半導体ウエハの前面側の温度を測定するステップと、半導体ウエハを堆積温度に加熱するステップと、処理チャンバの上方カバーの温度を目標温度に制御するステップとを備え、上方カバーの温度は、上方カバーの外表面の中心において測定され、上方カバーの温度を制御する制御ループの制御変数の実際の値として使用され、方法はさらに、層を堆積するための処理ガスが処理チャンバを介して導入されるガス流量を設定するステップと、処理チャンバの上方カバーの温度を目標温度に制御する際に堆積温度に加熱された半導体ウエハの前面側に層を堆積するステップとを備える。
【選択図】図1
Description
本発明は、処理チャンバにおいて、気相成長法によって半導体ウエハの上に層を堆積させるための方法および装置に関する。本発明は、特に、シリコンからなるエピタキシャル層を単結晶シリコンからなる半導体ウエハの上に堆積させること、およびこれに適した装置に関する。
Claims (10)
- 上方カバーと下方カバーとを有する処理チャンバにおいて気相成長法によって半導体ウエハの上に層を堆積する方法であって、該方法は、前記半導体ウエハの前面側の温度を測定するステップと、前記半導体ウエハを堆積温度に加熱するステップと、前記処理チャンバの前記上方カバーの温度を目標温度に制御するステップとを備え、前記上方カバーの温度は、前記上方カバーの外表面の中心において測定され、前記上方カバーの温度を制御するための制御ループにおける制御変数の実際の値として使用され、前記方法はさらに、前記処理チャンバを介して導入される、層を堆積させるための処理ガスのガス流量を設定するステップと、前記処理チャンバの前記上方カバーの温度を前記目標温度に制御する間に、前記堆積温度に加熱された前記半導体ウエハの前面側に層を堆積するステップとを備える、方法。
- 前記目標温度は、前記処理ガスの設定されたガス流量と相関するように選択される、請求項1に記載の方法。
- 少なくとも1つの追加の層が少なくとも1つの追加の半導体ウエハの上に堆積され、最後に行われた処理チャンバの洗浄から半導体ウエハの上に堆積された材料の量が記録され、前記処理チャンバは、材料の堆積が規定の全厚さに達した場合にのみ、前記最後に行われた洗浄の後に再度洗浄される、請求項1または2に記載の方法。
- 前記温度は、前記半導体ウエハを保持するサセプタの後方側において測定され、少なくとも1つの追加の層が少なくとも1つの追加の半導体ウエハの上に堆積され、前記処理チャンバの次の洗浄の直前に行なわれる前記処理チャンバの洗浄の後に最初の堆積が行われる際の初期温度差と比較して、前記半導体ウエハの前面側における温度と前記サセプタの後方側における温度との温度差が5℃より大きく変化した場合、堆積された材料の規定の全厚さにかかわらず前記処理チャンバの次の洗浄が開始される、請求項3に記載の方法。
- 前記半導体ウエハが単結晶シリコンからなり、前記堆積された材料がエピタキシャルに堆積されたシリコンである場合において、前記堆積された材料の規定の全厚さは50μm以上である、請求項3または請求項4に記載の方法。
- シリコンからなるエピタキシャル層が単結晶シリコンからなる半導体ウエハの上に堆積され、前記処理ガスの設定されたガス流量が45slmから55slmの範囲にある場合、前記目標温度は510℃から530℃の範囲に選択され、前記処理ガスの設定されたガス流量が56slmから65slmの範囲にある場合、前記目標温度は525℃から545℃の範囲に選択され、前記処理ガスの設定されたガス流量が66slmから80slmの範囲にある場合、前記目標温度は540℃から560℃に選択される、請求項1から5のいずれか1項に記載の方法。
- 気相成長法によって半導体ウエハの上に層を堆積するための装置であって、該装置は、上方および該下方カバーならびに上方カバーの外表面の中心において前記上方カバーの温度を測定する第1のセンサを含む処理チャンバと、前記第1のセンサによって測定された温度を実際の温度として用いて前記上方カバーの温度を所定の目標温度に制御する制御部とを備える、装置。
- データメモリを備え、該データメモリにおいては、複数の温度値が記憶され、これらの温度値は前記半導体ウエハの上に層を堆積する際の処理ガスのガス流量に対してそれぞれ割り当てられ、前記データメモリは、前記層を堆積するために設定されるガス流量に対して割り当てられる目標温度として温度値を設定する、請求項7に記載の装置。
- 測定ユニットを備え、前記測定ユニットは、最後に行われた前記処理チャンバの洗浄から半導体ウエハの上にどのくらいの量の材料が堆積されたかを記録し、堆積された材料の規定の全厚さを記録した後に、前記最後に行われた洗浄に続く前記処理チャンバの次の洗浄を開始する信号を発生する、請求項7または8に記載の装置。
- 前記半導体ウエハの前面側における前記半導体ウエハの温度を測定する第2のセンサと、前記半導体ウエハを保持するサセプタの後方側における温度を測定する第3のセンサと、前記処理チャンバの次の洗浄の直前に行なわれた処理チャンバの洗浄の後の最初の堆積の際に存在する初期温度差から、前記第2のセンサによって測定された温度と前記第3のセンサによって測定された温度との温度差が5℃より大きく外れている場合、前記処理チャンバの次の洗浄を開始する信号を発生する比較ユニットとを備える、請求項7から9のいずれか1項に記載の装置。
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DE102011083245.9 | 2011-09-22 | ||
DE102011083245.9A DE102011083245B4 (de) | 2011-09-22 | 2011-09-22 | Verfahren und Vorrichtung zum Abscheiden einer epitaktischen Schicht aus Silizium auf einer Halbleiterscheibe aus einkristallinem Silizium durch Gasphasenabscheidung in einer Prozesskammer |
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CN (1) | CN103014659B (ja) |
DE (1) | DE102011083245B4 (ja) |
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DE102016211614A1 (de) * | 2016-06-28 | 2017-12-28 | Siltronic Ag | Verfahren und Vorrichtung zur Herstellung von beschichteten Halbleiterscheiben |
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KR102576702B1 (ko) * | 2016-07-06 | 2023-09-08 | 삼성전자주식회사 | 증착 공정 모니터링 시스템, 및 그 시스템을 이용한 증착 공정 제어방법과 반도체 소자 제조방법 |
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KR101410097B1 (ko) | 2014-06-25 |
CN103014659B (zh) | 2015-10-28 |
US20130078743A1 (en) | 2013-03-28 |
KR20130032254A (ko) | 2013-04-01 |
SG188754A1 (en) | 2013-04-30 |
DE102011083245A1 (de) | 2013-03-28 |
JP5661078B2 (ja) | 2015-01-28 |
DE102011083245B4 (de) | 2019-04-25 |
MY166009A (en) | 2018-05-21 |
TW201313942A (zh) | 2013-04-01 |
CN103014659A (zh) | 2013-04-03 |
US9018021B2 (en) | 2015-04-28 |
TWI471451B (zh) | 2015-02-01 |
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