KR101464566B1 - 실리콘 웨이퍼 - Google Patents
실리콘 웨이퍼 Download PDFInfo
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- KR101464566B1 KR101464566B1 KR1020130018843A KR20130018843A KR101464566B1 KR 101464566 B1 KR101464566 B1 KR 101464566B1 KR 1020130018843 A KR1020130018843 A KR 1020130018843A KR 20130018843 A KR20130018843 A KR 20130018843A KR 101464566 B1 KR101464566 B1 KR 101464566B1
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- Prior art keywords
- silicon wafer
- oxygen
- silicon
- single crystal
- oxygen concentration
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 100
- 239000010703 silicon Substances 0.000 title claims abstract description 100
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 83
- 239000001301 oxygen Substances 0.000 claims abstract description 83
- 230000007547 defect Effects 0.000 claims abstract description 46
- 238000001556 precipitation Methods 0.000 claims abstract description 34
- 239000013078 crystal Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000002019 doping agent Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 48
- 230000015556 catabolic process Effects 0.000 description 11
- 239000002244 precipitate Substances 0.000 description 10
- 239000010453 quartz Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 230000002950 deficient Effects 0.000 description 5
- 238000004151 rapid thermal annealing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005247 gettering Methods 0.000 description 2
- 201000006935 Becker muscular dystrophy Diseases 0.000 description 1
- 208000037663 Best vitelliform macular dystrophy Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 208000020938 vitelliform macular dystrophy 2 Diseases 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/20—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/02—Single-crystal growth by pulling from a melt, e.g. Czochralski method adding crystallising materials or reactants forming it in situ to the melt
- C30B15/04—Single-crystal growth by pulling from a melt, e.g. Czochralski method adding crystallising materials or reactants forming it in situ to the melt adding doping materials, e.g. for n-p-junction
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
실시예 따른 실리콘 웨이퍼는 산소 농도가 15ppma와 실질적으로 같거나 15ppma보다 작은 값을 가지면서, 산소석출결함의 형상이 구형 또는 타원구형을 가진다.
Description
도 2는 실리콘 단결정 잉곳의 길이 방향에 따른 산소농도를 나타낸 그래프.
도 3은 표 1의 결과를 양품(Good)과 불량품(Bad)로 나누어 항복 전압(BVdss)의 수율의 편차를 나타낸 그래프.
도 4는 실시예에 따른 실리콘 웨이퍼에 나타난 산소석출결함의 형상(a)과 종래의 실리콘 웨이퍼에 나타난 산소석출결함의 형상(b)을 각각 나타낸 도면.
Block No. | 1 | 2 | 3 | 4 | 5 |
총 투입 카세트 수 |
5 | 5 | 10 | 34 | 22 |
합격 카세트 수 |
2 | 5 | 10 | 25 | 6 |
불량 카세트 수 |
3 | 0 | 0 | 9 | 16 |
불량율 | 60% | 0% | 0% | 26% | 73% |
산소 농도 [atoms/cm3] |
에피택셜 층의 두께 [㎛] |
항복 전압(BVdss) 수율 |
7.5*1017 | 3.7 | 99.23% |
8.0*1017 | 3.7 | 49.62% |
8.5*1017 | 3.7 | 20.37% |
양품 | 불량품 | |
밀도 | ≤1*106 개/cm3 | >1*106 개/cm3 |
형상 | 구형, 타원구형 | 아령 모양(OiSF) |
130: 히터 140: 단열 수단
150: 인상 수단 160: 열실드
Claims (6)
- 쵸크랄스키법으로 성장된 실리콘 단결정 잉곳으로부터 제작되는 실리콘 웨이퍼에 있어서,
산소 농도가 15ppma이하이고,
산소석출결함의 형상이 구형 또는 타원구형을 가지며,
상기 산소석출결함의 밀도는 1*106 개/cm3 이하인 실리콘 웨이퍼. - 삭제
- 제 1 항에 있어서,
상기 산소석출결함은 1㎛ 내지 5㎛의 크기를 갖는 실리콘 웨이퍼. - 제 1 항에 있어서,
반도체 소자 제조 과정의 열처리 과정을 거친 후에도 산소유도적층결함(OiSF)이 형성되지 않는 실리콘 웨이퍼. - 제 1 항에 있어서,
상기 실리콘 웨이퍼는 n-타입의 도펀트가 도핑된 실리콘 웨이퍼. - 제 1 항에 있어서,
상기 실리콘 웨이퍼는 p-타입의 도펀트가 도핑된 실리콘 웨이퍼.
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KR1020130018843A KR101464566B1 (ko) | 2013-02-21 | 2013-02-21 | 실리콘 웨이퍼 |
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KR1020130018843A KR101464566B1 (ko) | 2013-02-21 | 2013-02-21 | 실리콘 웨이퍼 |
Publications (2)
Publication Number | Publication Date |
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KR20140104847A KR20140104847A (ko) | 2014-08-29 |
KR101464566B1 true KR101464566B1 (ko) | 2014-11-24 |
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KR1020130018843A KR101464566B1 (ko) | 2013-02-21 | 2013-02-21 | 실리콘 웨이퍼 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3750526B2 (ja) * | 1999-03-16 | 2006-03-01 | 信越半導体株式会社 | シリコンウエーハの製造方法及びシリコンウエーハ |
KR20060054729A (ko) * | 2004-11-16 | 2006-05-23 | 주식회사 실트론 | 실리콘 단결정 및 그 제조 방법 |
KR20090095494A (ko) * | 2008-03-05 | 2009-09-09 | 가부시키가이샤 사무코 | 실리콘 기판과 그 제조방법 |
KR20130084063A (ko) * | 2012-01-16 | 2013-07-24 | 주식회사 엘지실트론 | 사파이어 실린더 마운팅 장치 |
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2013
- 2013-02-21 KR KR1020130018843A patent/KR101464566B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3750526B2 (ja) * | 1999-03-16 | 2006-03-01 | 信越半導体株式会社 | シリコンウエーハの製造方法及びシリコンウエーハ |
KR20060054729A (ko) * | 2004-11-16 | 2006-05-23 | 주식회사 실트론 | 실리콘 단결정 및 그 제조 방법 |
KR20090095494A (ko) * | 2008-03-05 | 2009-09-09 | 가부시키가이샤 사무코 | 실리콘 기판과 그 제조방법 |
KR20130084063A (ko) * | 2012-01-16 | 2013-07-24 | 주식회사 엘지실트론 | 사파이어 실린더 마운팅 장치 |
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