KR20200044930A - 에피택셜 실리콘 웨이퍼의 제조 방법, 에피택셜 실리콘 웨이퍼, 및 고체 촬상 소자의 제조 방법 - Google Patents
에피택셜 실리콘 웨이퍼의 제조 방법, 에피택셜 실리콘 웨이퍼, 및 고체 촬상 소자의 제조 방법 Download PDFInfo
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Abstract
Description
도 2의 (A)는, 본 발명의 하나의 실시형태에서 이용할 수 있는 이온 조사 장치(70)의 개략도이며, (B)는, 이온원(20)으로서 버누스형 이온원을 이용하는 경우의 개략도이며, (C)는, 이온원(20)으로서 IHC형 이온원을 이용하는 경우의 개략도이다.
도 3은, 이면조사형 고체 촬상 소자의 제조 방법을 설명하는 모식적인 단면도이다.
도 4는, IHC형 이온원을 이용하여 생성한 복수 종류의 이온의 매스(mass)값에 대한 빔 전류치를 나타낸 그래프이다.
도 5의 (A)는, 발명예에 의한 에피택셜 실리콘 웨이퍼(100)의 깊이 방향의 탄소 및 수소의 농도 프로파일을 나타낸 그래프이며, (B)는, (A)에 나타낸 피크 위치 근방에서의 확대도이다.
도 6의 (A)는, 비교예에 의한 에피택셜 실리콘 웨이퍼의 깊이 방향의 탄소 및 수소의 농도 프로파일을 나타낸 그래프이며, (B)는, (A)에 나타낸 피크 위치 근방에서의 확대도이다.
도 7은, 발명예 및 비교예에 대해, 에피택셜 실리콘 웨이퍼의 깊이 방향의 Ni의 농도 프로파일을 나타낸 그래프이다.
10 실리콘 웨이퍼
10A 실리콘 웨이퍼의 표면
12 클러스터 이온
14 개질층
16 실리콘 에피택셜층
20 이온원
21 아크 챔버
22 원료 가스 도입구
23 이온 추출구
24 필라멘트
25 리플렉터
26 전류 전압 인가 장치
27 자기장 발생 장치
28 진공 펌프
29 캐소드
30 전단 가속 기구
40 질량 분석 기구
50 후단 가속 기구
60 조사 챔버
70 이온 조사 장치
Claims (8)
- 실리콘 웨이퍼의 표면에, 버누스형 이온원 또는 IHC형 이온원을 이용하여 생성한 CnHm(n=1 또는 2, m=1, 2, 3, 4 또는 5)의 클러스터 이온을 조사하여, 상기 실리콘 웨이퍼 내에, 상기 클러스터 이온의 구성 원소인 탄소 및 수소가 고용되어 이루어지는 개질층을 형성하는 제1 공정과,
상기 제1 공정 후에, 상기 표면 상에 실리콘 에피택셜층을 형성하는 제2 공정을 갖고,
상기 제1 공정에서는, 상기 개질층에 있어서의 상기 탄소 및 상기 수소의 깊이 방향의 농도 프로파일의 피크를, 상기 실리콘 웨이퍼의 상기 표면으로부터의 깊이가 150㎚ 초과 2000㎚ 이내인 범위에 각각 위치시키는 것을 특징으로 하는 에피택셜 실리콘 웨이퍼의 제조 방법. - 제1항에 있어서,
상기 제1 공정에서는, 상기 클러스터 이온을 170㎂ 이상의 빔 전류치로 조사하는, 에피택셜 실리콘 웨이퍼의 제조 방법. - 제1항 또는 제2항에 있어서,
상기 제1 공정에서는, 상기 실리콘 웨이퍼의 틸트각 및 트위스트각이 모두 0°가 되도록, 상기 클러스터 이온의 조사를 행하는, 에피택셜 실리콘 웨이퍼의 제조 방법. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 제1 공정과 상기 제2 공정의 사이에, 상기 실리콘 웨이퍼의 표면을 세정하는 공정을 더 갖는, 에피택셜 실리콘 웨이퍼의 제조 방법. - 실리콘 웨이퍼와, 상기 실리콘 웨이퍼 내에 형성된, 탄소 및 수소가 고용되어 이루어지는 개질층과, 상기 개질층 상에 형성된 실리콘 에피택셜층을 갖고,
상기 실리콘 웨이퍼의 표면으로부터의 깊이가 150㎚ 초과 2000㎚ 이내인 범위에, 상기 개질층에 있어서의 상기 탄소 및 상기 수소의 깊이 방향의 농도 프로파일의 피크가 각각 위치하는 것을 특징으로 하는 에피택셜 실리콘 웨이퍼. - 제5항에 있어서,
상기 탄소의 깊이 방향의 농도 프로파일의 피크 위치와 상기 수소의 깊이 방향의 농도 프로파일의 피크 위치의 차(差)가 1000㎚ 이내인, 에피택셜 실리콘 웨이퍼. - 제5항 또는 제6항에 있어서,
상기 탄소의 깊이 방향의 농도 프로파일의 피크 농도와 상기 수소의 깊이 방향의 농도 프로파일의 피크 농도가 모두 1×1016atoms/㎝3 이상인, 에피택셜 실리콘 웨이퍼. - 제1항 내지 제4항 중 어느 한 항에 기재된 에피택셜 실리콘 웨이퍼의 제조 방법으로 제조된 에피택셜 실리콘 웨이퍼 또는 제5항 내지 제7항 중 어느 한 항에 기재된 에피택셜 실리콘 웨이퍼의 실리콘 에피택셜층에, 고체 촬상 소자를 형성하는 것을 특징으로 하는 고체 촬상 소자의 제조 방법.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2017249862A JP6812962B2 (ja) | 2017-12-26 | 2017-12-26 | エピタキシャルシリコンウェーハの製造方法 |
| JPJP-P-2017-249862 | 2017-12-26 | ||
| PCT/JP2018/031435 WO2019130653A1 (ja) | 2017-12-26 | 2018-08-24 | エピタキシャルシリコンウェーハの製造方法、エピタキシャルシリコンウェーハ、及び固体撮像素子の製造方法 |
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| KR20200044930A true KR20200044930A (ko) | 2020-04-29 |
| KR102393269B1 KR102393269B1 (ko) | 2022-04-29 |
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| US11271079B2 (en) * | 2020-01-15 | 2022-03-08 | Globalfoundries U.S. Inc. | Wafer with crystalline silicon and trap rich polysilicon layer |
| CN113249684B (zh) * | 2021-04-16 | 2023-05-16 | 杭州电子科技大学 | 一种高密度功能团簇材料及其制备方法 |
Citations (5)
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- 2018-08-24 KR KR1020207009158A patent/KR102393269B1/ko active Active
- 2018-08-24 WO PCT/JP2018/031435 patent/WO2019130653A1/ja not_active Ceased
- 2018-08-24 US US16/956,232 patent/US11245014B2/en active Active
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| Publication number | Publication date |
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| KR102393269B1 (ko) | 2022-04-29 |
| TW201929053A (zh) | 2019-07-16 |
| WO2019130653A1 (ja) | 2019-07-04 |
| CN111771265B (zh) | 2024-02-02 |
| US11245014B2 (en) | 2022-02-08 |
| CN111771265A (zh) | 2020-10-13 |
| JP6812962B2 (ja) | 2021-01-13 |
| TWI700734B (zh) | 2020-08-01 |
| US20210083058A1 (en) | 2021-03-18 |
| JP2019117832A (ja) | 2019-07-18 |
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