KR101878702B1 - 실리콘 웨이퍼의 양부 판정 방법, 당해 방법을 이용한 실리콘 웨이퍼의 제조 방법 - Google Patents
실리콘 웨이퍼의 양부 판정 방법, 당해 방법을 이용한 실리콘 웨이퍼의 제조 방법 Download PDFInfo
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 131
- 239000010703 silicon Substances 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 94
- 238000013441 quality evaluation Methods 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 127
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 127
- 239000001301 oxygen Substances 0.000 claims abstract description 127
- 230000035882 stress Effects 0.000 claims abstract description 113
- 238000004519 manufacturing process Methods 0.000 claims abstract description 104
- 238000010438 heat treatment Methods 0.000 claims abstract description 97
- 230000008646 thermal stress Effects 0.000 claims abstract description 37
- 230000008021 deposition Effects 0.000 claims abstract description 16
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 4
- 235000012431 wafers Nutrition 0.000 description 149
- 238000012360 testing method Methods 0.000 description 18
- 238000001556 precipitation Methods 0.000 description 17
- 238000013001 point bending Methods 0.000 description 15
- 230000007423 decrease Effects 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000004151 rapid thermal annealing Methods 0.000 description 5
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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Abstract
Description
도 2는 샘플 웨이퍼에 있어서의 잔존 산소 농도와 석출 산소 농도의 관계를 나타내는 도면이다.
도 3은 고온 3점 굽힘 시험을 설명하는 도면이다.
도 4는 고온 3점 굽힘 시험에 있어서 샘플 웨이퍼 중에 주어지는 응력 분포를 나타내는 도면이다.
도 5는 고온 3점 굽힘 시험에 의해 얻어진 잔존 산소 농도와 임계 전단 응력의 관계를 나타내는 도면이다.
도 6은 고온 3점 굽힘 시험에 의해 얻어진 잔존 산소 농도와 임계 전단 응력의 관계를 나타내는 도면이다.
도 7은 본 발명에 있어서 사용하는 임계 전단 응력의 식에 있어서의 성분을 설명하는 도면이다.
도 8은 임계 전단 응력의 실험값과 계산값의 관계를 나타내는 도면이다.
도 9는 본 발명에 따른 실리콘 웨이퍼의 제조 방법의 일 실시 형태의 플로우차트이다.
도 10은 고온 4점 굽힘 시험에 있어서 샘플 웨이퍼 중에 주어지는 응력 분포를 나타내는 도면이다.
도 11은 본 발명에 의해 디바이스 제작 공정에 있어서 슬립 전위를 고정밀도로 예측할 수 있는 것을 나타내는 도면이다.
Claims (12)
- 실리콘 웨이퍼에 있어서의, 디바이스 제작 공정에 있어서 실시되는 열처리 후의 석출 산소 농도 및 잔존 산소 농도를 구한 후, 구한 상기 석출 산소 농도 및 상기 잔존 산소 농도에 기초하여, 상기 디바이스 제작 공정에 있어서 실리콘 웨이퍼에 슬립 전위가 발생하는 임계 전단 응력(τcri)을 구하고, 구한 상기 임계 전단 응력(τcri)과 상기 디바이스 제작 공정의 열처리에 있어서 실리콘 웨이퍼에 주어지는 열응력(τ)을 비교하여, 상기 열응력(τ)이 상기 임계 전단 응력(τcri) 이상인 경우에는 상기 디바이스 제작 공정에 있어서 실리콘 웨이퍼에 슬립 전위가 발생한다고 판정하고, 상기 열응력(τ)이 상기 임계 전단 응력(τcri)을 하회하는 경우에는, 상기 디바이스 제작 공정에 있어서 실리콘 웨이퍼에 슬립 전위가 발생하지 않는다고 판정하고,
상기 임계 전단 응력(τcri)은, ΔOi:상기 석출 산소 농도, CO:상기 잔존 산소 농도, T:상기 열처리의 온도, k:볼츠만 정수로서 이하의 식(A)로 주어지는 것을 특징으로 하는 실리콘 웨이퍼의 양부 판정 방법.
- 삭제
- 제1항에 있어서,
상기 디바이스 제작 공정에 있어서의 열처리 후의 상기 석출 산소 농도(ΔOi) 및 상기 잔존 산소 농도(CO)를 구하는 처리는, 상기 실리콘 웨이퍼에 대하여 상기 디바이스 제작 공정에 있어서의 열처리를 실시한 후, 당해 열처리 후의 실리콘 웨이퍼에 있어서의 상기 석출 산소 농도 및 상기 잔존 산소 농도를 측정함으로써 행하는, 실리콘 웨이퍼의 양부 판정 방법. - 제1항에 있어서,
상기 디바이스 제작 공정에 있어서의 열처리 후의 상기 석출 산소 농도 및 상기 잔존 산소 농도(CO)를 구하는 처리는 시뮬레이션 계산에 의해 행하는 실리콘 웨이퍼의 양부 판정 방법. - 제1항에 있어서,
상기 열응력(τ)은, 열처리 장치에 상기 실리콘 웨이퍼를 투입하여 가열하고, 가열된 상기 실리콘 웨이퍼의 반경 방향의 온도 분포에 기초하여 구하는 실리콘 웨이퍼의 양부 판정 방법. - 제1항에 있어서,
상기 열응력(τ)은 시뮬레이션 계산에 의해 구하는 실리콘 웨이퍼의 양부 판정 방법. - 제1항에 기재된 실리콘 웨이퍼의 양부 판정 방법에 의해 상기 디바이스 제작 공정에 있어서 슬립 전위가 발생하지 않는다고 판정되는 실리콘 웨이퍼가 얻어지는 육성 조건으로 단결정 실리콘 잉곳을 육성하고, 육성한 상기 단결정 실리콘 잉곳에 대하여 웨이퍼 가공 처리를 행하는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.
- 제7항에 있어서,
상기 디바이스 제작 공정에 있어서의 열처리 후의 상기 석출 산소 농도는 0.06×1017atoms/㎤ 이상 0.8×1017atoms/㎤ 이하인 실리콘 웨이퍼의 제조 방법. - 제7항에 있어서,
상기 디바이스 제작 공정에 있어서의 열처리 후의 상기 잔존 산소 농도는 10×1017atoms/㎤ 이상 18×1017atoms/㎤ 이하인 실리콘 웨이퍼의 제조 방법. - 삭제
- 삭제
- 삭제
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JP6436255B1 (ja) * | 2018-02-27 | 2018-12-12 | 株式会社Sumco | シリコンウェーハの反り量の予測方法およびシリコンウェーハの製造方法 |
JP7495238B2 (ja) * | 2020-02-19 | 2024-06-04 | グローバルウェーハズ・ジャパン株式会社 | シリコンウェーハの製造方法 |
US11359906B2 (en) | 2020-05-29 | 2022-06-14 | Ta Liang Technology Co., Ltd. | Method, system and apparatus for uniformed surface measurement |
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WO2008038786A1 (fr) * | 2006-09-29 | 2008-04-03 | Sumco Techxiv Corporation | Procédé de traitement thermique de plaquettes en silicium |
KR20090129443A (ko) * | 2007-05-02 | 2009-12-16 | 실트로닉 아게 | 실리콘 웨이퍼 및 그 제조방법 |
KR20100076875A (ko) * | 2008-12-26 | 2010-07-06 | 실트로닉 아게 | 실리콘 웨이퍼 및 실리콘 웨이퍼 제조 방법 |
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US7700394B2 (en) | 2004-06-30 | 2010-04-20 | Sumco Corporation | Method for manufacturing silicon wafer method |
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JP5533210B2 (ja) * | 2010-05-06 | 2014-06-25 | 株式会社Sumco | シリコンウェーハの熱処理方法 |
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WO2008038786A1 (fr) * | 2006-09-29 | 2008-04-03 | Sumco Techxiv Corporation | Procédé de traitement thermique de plaquettes en silicium |
US20100075267A1 (en) * | 2006-09-29 | 2010-03-25 | Shinya Sadohara | Silicon wafer heat treatment method |
KR20090129443A (ko) * | 2007-05-02 | 2009-12-16 | 실트로닉 아게 | 실리콘 웨이퍼 및 그 제조방법 |
KR20100076875A (ko) * | 2008-12-26 | 2010-07-06 | 실트로닉 아게 | 실리콘 웨이퍼 및 실리콘 웨이퍼 제조 방법 |
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