KR102188589B1 - 실리콘 단결정 웨이퍼의 열처리방법 - Google Patents
실리콘 단결정 웨이퍼의 열처리방법 Download PDFInfo
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/322—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections
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Abstract
Description
Claims (8)
- 실리콘 단결정 웨이퍼에 산화성 분위기하에서 열처리를 행하는 방법으로서,
상기 열처리를 행할 때의 열처리온도, 상기 열처리를 행하기 전의 상기 실리콘 단결정 웨이퍼 중의 산소농도, 및 상기 실리콘 단결정 웨이퍼를 잘라내는 실리콘 단결정의 육성조건의 3자의 상관관계로부터 구해지는 조건에 기초하여 열처리를 행하는 방법이며,
상기 실리콘 단결정 웨이퍼로서, 질소가 도프되지 않은 실리콘 단결정으로부터 잘라낸 것을 이용하는 경우, 상기 3자의 상관관계가, 하기의 관계식(A-1)로 표시되고,
T≥37.5[Oi]+72.7IvoidA+860 (A-1)
(여기서, T: 열처리온도(℃), [Oi]: 열처리를 행하기 전의 실리콘 단결정 웨이퍼 중의 산소농도(ppma-JEIDA)이며, IvoidA는 하기의 식(A-2)로 표시된다.)
IvoidA={(V/G)-(V/G)crt}1/3×{L(1150-1080)/V}1/2 (A-2)
(여기서, V: 성장속도(mm/min), G: 계면근방 온도구배(℃/mm), (V/G)crt: 무결함이 될 때의 V/G의 값, L(1150-1080): Void 결함형성온도대 1,150℃-1,080℃의 거리(mm)이다.)
상기 실리콘 단결정 웨이퍼로서, 질소가 도프된 실리콘 단결정으로부터 잘라낸 것을 이용하는 경우, 상기 3자의 상관관계가, 하기의 관계식(B-1)로 표시되는 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
T≥37.5[Oi]+72.7IvoidB+860 (B-1)
(여기서, T: 열처리온도(℃), [Oi]: 열처리를 행하기 전의 실리콘 단결정 웨이퍼 중의 산소농도(ppma-JEIDA)이며, IvoidB는 하기의 식(B-2)로 표시된다.)
IvoidB={(V/G)-(V/G)crt}1/3×{L(1080-1040)/2V}1/2 (B-2)
(여기서, V: 성장속도(mm/min), G: 계면근방 온도구배(℃/mm), (V/G)crt: 무결함이 될 때의 V/G의 값, L(1080-1040): 질소도프시의 Void 결함형성온도대 1,080℃-1,040℃의 거리(mm)이다.)
- 삭제
- 삭제
- 제1항에 있어서,
상기 실리콘 단결정 웨이퍼로서, 5×1015atoms/cm3 이하의 질소가 도프된 실리콘 단결정으로부터 잘라낸 것을 이용하는 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
- 제1항 또는 제4항에 있어서,
상기 실리콘 단결정 웨이퍼로서, Interstitial-Si에 기인하는 결함을 포함하지 않는 실리콘 단결정으로부터 잘라낸 것을 이용하는 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
- 제1항 또는 제4항에 있어서,
상기 열처리온도는 900℃ 이상 1,200℃ 이하이며, 열처리시간은 1분 이상 180분 이하인 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
- 제1항 또는 제4항에 있어서,
상기 실리콘 단결정 웨이퍼로서, 상기 산소농도가 8ppma-JEIDA 이하인 것을 이용하는 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
- 제1항 또는 제4항에 있어서,
상기 실리콘 단결정 웨이퍼로서, 두께가 0.1mm 이상 20mm 이하인 것을 이용하는 것을 특징으로 하는 실리콘 단결정 웨이퍼의 열처리방법.
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JPJP-P-2014-006237 | 2014-01-16 | ||
JP2014006237A JP6052189B2 (ja) | 2014-01-16 | 2014-01-16 | シリコン単結晶ウェーハの熱処理方法 |
PCT/JP2015/000046 WO2015107874A1 (ja) | 2014-01-16 | 2015-01-08 | シリコン単結晶ウェーハの熱処理方法 |
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WO (1) | WO2015107874A1 (ko) |
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KR20170100547A (ko) | 2014-12-30 | 2017-09-04 | 다우 아그로사이언시즈 엘엘씨 | 살진균 활성을 갖는 피콜린아미드 |
EP3240424B1 (en) | 2014-12-30 | 2020-09-16 | Dow AgroSciences LLC | Use of picolinamide compounds as fungicides |
JP6627800B2 (ja) * | 2017-02-21 | 2020-01-08 | 信越半導体株式会社 | シリコン単結晶ウエハの欠陥領域判定方法 |
DE112018001919B4 (de) * | 2017-04-06 | 2022-09-22 | Sumco Corporation | Verfahren zum herstellen eines siliziumepitaxialwafers und siliziumepitaxialwafer |
CN112376111B (zh) * | 2020-11-02 | 2022-05-24 | 新余赛维铸晶技术有限公司 | 铸造单晶硅用籽晶的制备方法、铸造单晶硅用籽晶、铸造单晶硅 |
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US10066322B2 (en) | 2018-09-04 |
CN105917449B (zh) | 2018-09-28 |
US9850595B2 (en) | 2017-12-26 |
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US20170037541A1 (en) | 2017-02-09 |
US20170342596A1 (en) | 2017-11-30 |
WO2015107874A1 (ja) | 2015-07-23 |
JP2015135873A (ja) | 2015-07-27 |
DE112015000282T5 (de) | 2016-10-06 |
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