KR20010101189A - 에피텍셜 웨이퍼용 실리콘 단결정 웨이퍼, 에피텍셜웨이퍼 및 이들의 제조방법 그리고 평가방법 - Google Patents
에피텍셜 웨이퍼용 실리콘 단결정 웨이퍼, 에피텍셜웨이퍼 및 이들의 제조방법 그리고 평가방법 Download PDFInfo
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- KR20010101189A KR20010101189A KR1020017007346A KR20017007346A KR20010101189A KR 20010101189 A KR20010101189 A KR 20010101189A KR 1020017007346 A KR1020017007346 A KR 1020017007346A KR 20017007346 A KR20017007346 A KR 20017007346A KR 20010101189 A KR20010101189 A KR 20010101189A
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 96
- 239000010703 silicon Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 158
- 235000012431 wafers Nutrition 0.000 claims abstract description 146
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 238000005247 gettering Methods 0.000 description 14
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- 239000011574 phosphorus Substances 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 238000010583 slow cooling Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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- 241000892656 Ligusticum canadense Species 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- C30B15/02—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
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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
- 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
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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
- C30B15/203—Controlling or regulating the relationship of pull rate (v) to axial thermal gradient (G)
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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
- C30B15/206—Controlling or regulating the thermal history of growing the ingot
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- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- 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
- H01L21/3221—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 of silicon bodies, e.g. for gettering
- H01L21/3225—Thermally inducing defects using oxygen present in the silicon body for intrinsic gettering
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- Crystals, And After-Treatments Of Crystals (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
예 No.항목 | 실시예1 | 실시예2 | 실시예3 | 비교예1 | 비교예2 |
전면V-리치영역 | OSF영역있음 | OSF영역있음,서냉 | OSF영역있음 | 전면V-리치영역 | |
HZ구조 | 스탠다드형 | 스탠다드형 | 서냉형 | 스탠다드형 | 스탠다드형 |
인상속도 V(mm/min) | 1.4 | 1.0 | 1.0 | 1.0 | 1.4 |
V/G(㎟/℃·min) | 0.35 | 0.25 | 0.29 | 0.25 | 0.35 |
질소농도(/㎤) | 1×1014 | 2×1013 | 8×1013 | 8×1013 | 논도프 |
산소농도(ppmaJEIDA) | 12~15 | 12~15 | 12~15 | 12~15 | 12~15 |
1000~900℃냉각속도(℃/min) | 1.4 | 1.0 | 0.8 | 1.0 | 1.4 |
OSF밀도(/㎠) | 0 | OSF영역내1000 | OSF영역내9000 | OSF영역내22000 | 0 |
LEP밀도(/㎠) | 0 | OSF영역내≤16.0 | OSF영역내≤8.0 | OSF영역내200 | 0 |
에피텍셜층형성후의BMD(/㎤) | 2×109 | 1×108 | 8×108 | 4×108 | 106~107 |
에피텍셜층표면의LPD(개/6"웨이퍼) | ≤20 | ≤20 | ≤20 | ≥500 | ≤20 |
Claims (14)
- 쵸크랄스키법에 의해 육성된 에피텍셜성장용 실리콘 단결정 웨이퍼에 있어서,질소가 도프되고 또한 전면(全面) V-리치영역인 것을 특징으로 하는 실리콘 단결정웨이퍼
- 쵸크랄스키법에 의해 육성된 에피텍셜성장용 실리콘 단결정 웨이퍼에 있어서,질소가 도프되고 면내에 OSF영역을 갖고, 또한 상기 OSF영역에서 LEP밀도가 20개/㎠ 이하인 것을 특징으로 하는 실리콘 단결정웨이퍼
- 쵸크랄스키법에 의해 육성된 에피텍셜성장용 실리콘 단결정 웨이퍼에 있어서,질소가 도프되고 면내에 OSF영역을 갖고, 또한 상기 OSF영역에서 OSF밀도가 1×104개/㎠ 이하인 것을 특징으로 하는 실리콘 단결정웨이퍼
- 제 1항 내지 제 3항 중 어느 한 항에 있어서, 상기 질소농도가 2×1013/㎤~1×1014/㎤인 것을 특징으로 하는 실리콘 단결정웨이퍼
- 제 1항 내지 제 4항 중 어느 한 항의 실리콘 단결정 웨이퍼 표면에 에피텍셜층을 형성한 것인 것을 특징으로 하는 에피텍셜 웨이퍼
- 질소가 도프되고 에피텍셜층이 형성된 실리콘 단결정웨이퍼중 BMD가 1×108/㎤ 이상이고, 또한 에피텍셜층 표면의 결함밀도가 0.11개/㎠(20개/6인치 웨이퍼) 이하인 것을 특징으로 하는 에피텍셜 웨이퍼
- 쵸크랄스키법에 의해 질소를 도프한 실리콘 단결정을 육성할 때, 결정전면이 V-리치 영역으로 되는 조건으로 인상하는 것을 특징으로 하는 에피텍셜성장용 실리콘 단결정웨이퍼의 제조방법
- 제 7항에 있어서, 상기 결정전면이 V-리치영역으로 되는 인상조건은, OSF영역이 결정외주부로부터 소멸하도록 결정육성시의 V/G(여기서, V: 인상속도, G: 결정온도구배라 함)를 제어하는 것을 특징으로 하는 에피텍셜 성장용 실리콘 단결정웨이퍼의 제조방법
- 쵸크랄스키법에 의해 질소를 도프한 실리콘 단결정을 육성할 때, 결정의 중심위치가 V-리치영역으로 되고, 또한 결정의 외주부가 OSF영역으로 되도록 인상한후, 상기 OSF영역을 제거하는 것을 특징으로 하는 에피텍셜 성장용 실리콘 단결정웨이퍼의 제조방법
- 제 7항 내지 제 9항 중 어느 한 항에 있어서, 상기 결정육성시 1000~900℃의 온도대의 냉각속도를 0.8℃/min 이하로 하는 것을 특징으로 하는 에피텍셜 성장용 실리콘 단결정웨이퍼의 제조방법
- 쵸크랄스키법에 의해 질소를 도프한 실리콘 단결정을 육성할 때, 결정의 중심위치가 V-리치영역으로 됨과 동시에 OSF영역을 갖도록 인상하고, 또한 1000~900℃온도대의 냉각속도를 0.8℃/min 이하로 하는 것을 특징으로 하는 에피텍셜 성장용 실리콘 단결정웨이퍼의 제조방법
- 제 7항 내지 제 11항 중 어느 한항의 방법으로 제조된 실리콘 단결정 웨이퍼에 IG열처리를 실시하는 것을 특징으로 하는 에피텍셜 성장용 실리콘 단결정웨이퍼의 제조방법
- 제 7항 내지 제 12항 중 어느 한항의 방법으로 제조된 실리콘 단결정 웨이퍼 표면에 에피텍셜층을 형성하는 것을 특징으로 하는 에피텍셜웨이퍼의 제조방법
- 쵸크랄스키법을 이용해 질소도프를 하여 제작된 실리콘 단결정봉의 양단으로부터 웨이퍼를 절출하고, 이 양 웨이퍼에 선택에칭을 행하여 웨이퍼 표면에 발생한 LEP밀도를 측정하거나, 또는 열산화처리를 실시한 후 선택에칭을 행하여 웨이퍼 표면에 발생한 OSF밀도를 측정하는 것에 의해, 이 양 웨이퍼를 절출한 나머지의 실리콘 단결정봉으로부터 제작되는 실리콘 단결정웨이퍼에 성장시키는 에피텍셜층 표면의 결정결함발생 유무를 평가하는 것을 특징으로 하는 에피텍셜 웨이퍼용 실리콘 단결정웨이퍼의 평가방법
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JP29452399 | 1999-10-15 |
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KR20010101189A true KR20010101189A (ko) | 2001-11-14 |
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US (1) | US6548035B1 (ko) |
EP (1) | EP1143045B1 (ko) |
JP (1) | JP4224966B2 (ko) |
KR (1) | KR100788988B1 (ko) |
TW (1) | TWI265984B (ko) |
WO (1) | WO2001027362A1 (ko) |
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JP4055340B2 (ja) * | 2000-08-31 | 2008-03-05 | 株式会社Sumco | エピタキシャルウェーハの製造方法 |
JP4615785B2 (ja) * | 2000-09-01 | 2011-01-19 | シルトロニック・ジャパン株式会社 | 窒素添加基板を用いたエピ層欠陥のないエピタキシャルウエハの製造方法 |
JP4463957B2 (ja) * | 2000-09-20 | 2010-05-19 | 信越半導体株式会社 | シリコンウエーハの製造方法およびシリコンウエーハ |
JP2003002786A (ja) * | 2001-06-25 | 2003-01-08 | Shin Etsu Handotai Co Ltd | シリコン単結晶基板、エピタキシャルウエーハおよびこれらの製造方法 |
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SG142208A1 (en) * | 2006-10-18 | 2008-05-28 | Siltronic Ag | Process for producing p»-doped and epitaxially coated semiconductor wafers from silicon |
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EP2105957A3 (en) * | 2008-03-26 | 2011-01-19 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing soi substrate and method for manufacturing semiconductor device |
JP5150865B2 (ja) * | 2008-04-30 | 2013-02-27 | 株式会社Sumco | シリコン単結晶インゴットの製造方法 |
DE102008046617B4 (de) * | 2008-09-10 | 2016-02-04 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren für deren Herstellung |
EP2309038B1 (en) * | 2009-10-08 | 2013-01-02 | Siltronic AG | production method of an epitaxial wafer |
DE102010005100B4 (de) * | 2010-01-20 | 2016-07-14 | Siltronic Ag | Verfahren zur Herstellung von Halbleiterscheiben aus Silizium mit einem Durchmesser von mindestens 450 mm |
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JPS60251190A (ja) | 1984-05-25 | 1985-12-11 | Shin Etsu Handotai Co Ltd | シリコン単結晶の製造方法 |
JP3516200B2 (ja) * | 1997-12-25 | 2004-04-05 | 三菱住友シリコン株式会社 | シリコン単結晶およびエピタキシャルウェーハ |
US6077343A (en) * | 1998-06-04 | 2000-06-20 | Shin-Etsu Handotai Co., Ltd. | Silicon single crystal wafer having few defects wherein nitrogen is doped and a method for producing it |
JP3255114B2 (ja) * | 1998-06-18 | 2002-02-12 | 信越半導体株式会社 | 窒素ドープした低欠陥シリコン単結晶の製造方法 |
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- 2000-10-05 KR KR1020017007346A patent/KR100788988B1/ko active IP Right Grant
- 2000-10-05 US US09/868,058 patent/US6548035B1/en not_active Expired - Lifetime
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JP4224966B2 (ja) | 2009-02-18 |
EP1143045B1 (en) | 2012-03-21 |
WO2001027362A1 (fr) | 2001-04-19 |
US6548035B1 (en) | 2003-04-15 |
TWI265984B (en) | 2006-11-11 |
EP1143045A1 (en) | 2001-10-10 |
KR100788988B1 (ko) | 2007-12-28 |
EP1143045A4 (en) | 2009-01-28 |
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