KR102463966B1 - 금속 오염 평가 방법 - Google Patents
금속 오염 평가 방법 Download PDFInfo
- Publication number
- KR102463966B1 KR102463966B1 KR1020207021032A KR20207021032A KR102463966B1 KR 102463966 B1 KR102463966 B1 KR 102463966B1 KR 1020207021032 A KR1020207021032 A KR 1020207021032A KR 20207021032 A KR20207021032 A KR 20207021032A KR 102463966 B1 KR102463966 B1 KR 102463966B1
- Authority
- KR
- South Korea
- Prior art keywords
- lifetime
- silicon wafer
- metal contamination
- concentration
- wafer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 title claims abstract description 60
- 238000011109 contamination Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 45
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 63
- 239000010703 silicon Substances 0.000 claims abstract description 63
- 239000013078 crystal Substances 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000000356 contaminant Substances 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 4
- 238000011156 evaluation Methods 0.000 claims description 25
- 238000002161 passivation Methods 0.000 claims description 21
- 239000012535 impurity Substances 0.000 claims description 19
- 239000002019 doping agent Substances 0.000 claims description 16
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 235000012431 wafers Nutrition 0.000 description 68
- 125000004429 atom Chemical group 0.000 description 28
- 238000002474 experimental method Methods 0.000 description 20
- 230000006798 recombination Effects 0.000 description 16
- 238000005215 recombination Methods 0.000 description 16
- 230000007423 decrease Effects 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000000969 carrier Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011800 void material Substances 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 229910008065 Si-SiO Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910006405 Si—SiO Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000015241 bacon Nutrition 0.000 description 1
- 238000006388 chemical passivation reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
-
- 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
-
- 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
- C30B15/14—Heating of the melt or the crystallised materials
-
- 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)
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6489—Photoluminescence of semiconductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32073—Corona discharge
-
- 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
- H01L21/02104—Forming layers
-
- 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
- H01L21/26—Bombardment with radiation
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
- H01L22/22—Connection or disconnection of sub-entities or redundant parts of a device in response to a measurement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/245—Detection characterised by the variable being measured
- H01J2237/24592—Inspection and quality control of devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Immunology (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Toxicology (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2017-246190 | 2017-12-22 | ||
| JP2017246190A JP7057122B2 (ja) | 2017-12-22 | 2017-12-22 | 金属汚染評価方法 |
| PCT/JP2018/029009 WO2019123706A1 (ja) | 2017-12-22 | 2018-08-02 | 金属汚染評価方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20200100783A KR20200100783A (ko) | 2020-08-26 |
| KR102463966B1 true KR102463966B1 (ko) | 2022-11-04 |
Family
ID=66994648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020207021032A Active KR102463966B1 (ko) | 2017-12-22 | 2018-08-02 | 금속 오염 평가 방법 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11538721B2 (enExample) |
| EP (1) | EP3731263A4 (enExample) |
| JP (1) | JP7057122B2 (enExample) |
| KR (1) | KR102463966B1 (enExample) |
| CN (1) | CN111480219A (enExample) |
| TW (1) | TWI717628B (enExample) |
| WO (1) | WO2019123706A1 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7561498B2 (ja) * | 2020-02-14 | 2024-10-04 | グローバルウェーハズ・ジャパン株式会社 | シリコン単結晶の製造方法 |
| CN112366146A (zh) * | 2020-11-05 | 2021-02-12 | 天津中环领先材料技术有限公司 | 一种晶圆片的寿命测试方法 |
| CN112908876A (zh) * | 2021-01-18 | 2021-06-04 | 上海新昇半导体科技有限公司 | 硅片金属污染测试方法及装置 |
| JP7249395B1 (ja) * | 2021-11-10 | 2023-03-30 | 株式会社Sumco | 半導体試料の評価方法、半導体試料の評価装置および半導体ウェーハの製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120001301A1 (en) * | 2009-04-13 | 2012-01-05 | Shin-Etsu Handotai Co., Ltd. | Annealed wafer, method for producing annealed wafer and method for fabricating device |
| JP2017103275A (ja) * | 2015-11-30 | 2017-06-08 | 株式会社Sumco | シリコンウェーハの評価方法およびその利用 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0216184D0 (en) | 2002-07-12 | 2002-08-21 | Aoti Operating Co Inc | Detection method and apparatus |
| JP4200845B2 (ja) * | 2002-10-18 | 2008-12-24 | 株式会社Sumco | シリコン単結晶インゴットの点欠陥分布を測定する方法 |
| DE03756681T1 (de) | 2002-10-18 | 2005-12-29 | Sumitomo Mitsubishi Silicon Corp. | Verfahren zur bestimmung der punktdefektverteilung eines silicium-einkristallstabs |
| KR100500712B1 (ko) * | 2002-12-16 | 2005-07-11 | 주식회사 실트론 | 실리콘웨이퍼의 금속 불순물 농도 측정 방법 |
| JP2009266835A (ja) * | 2008-04-21 | 2009-11-12 | Sumco Corp | シリコン単結晶の金属汚染評価方法 |
| JP5439752B2 (ja) | 2008-06-13 | 2014-03-12 | 信越半導体株式会社 | 汚染検出用モニターウェーハ、汚染検出方法及びエピタキシャルウェーハの製造方法 |
| JP5410769B2 (ja) * | 2009-01-30 | 2014-02-05 | 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熱処理方法 |
| US8252700B2 (en) | 2009-01-30 | 2012-08-28 | Covalent Materials Corporation | Method of heat treating silicon wafer |
| JP5467923B2 (ja) * | 2010-05-06 | 2014-04-09 | 信越半導体株式会社 | 金属汚染評価用シリコンウエーハの製造方法 |
| JP5621612B2 (ja) | 2011-01-19 | 2014-11-12 | 株式会社Sumco | シリコン単結晶の検査方法および製造方法 |
| JP5590002B2 (ja) * | 2011-10-12 | 2014-09-17 | 信越半導体株式会社 | 金属汚染評価方法及びエピタキシャルウェーハの製造方法 |
| JP2013105914A (ja) * | 2011-11-14 | 2013-05-30 | Shin Etsu Handotai Co Ltd | 気相成長装置の清浄度評価方法 |
| JP5742742B2 (ja) * | 2012-02-08 | 2015-07-01 | 信越半導体株式会社 | 金属汚染評価方法 |
| JP5733245B2 (ja) | 2012-03-16 | 2015-06-10 | 信越半導体株式会社 | シリコン単結晶ウェーハの製造方法 |
| DE102012214085B4 (de) | 2012-08-08 | 2016-07-07 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren zu deren Herstellung |
| JP2014058414A (ja) * | 2012-09-14 | 2014-04-03 | Jnc Corp | 評価用シリコン単結晶の製造方法 |
| EP2943974B1 (en) | 2013-01-08 | 2021-01-13 | SK Siltron Co., Ltd. | Method of detecting defects in silicon single crystal wafer |
| EP2779220B1 (en) * | 2013-03-12 | 2017-10-25 | GLobalWafers Japan Co., Ltd. | Saturation voltage estimation method and silicon epitaxial wafer manufaturing method |
| JP5885305B2 (ja) * | 2013-08-07 | 2016-03-15 | グローバルウェーハズ・ジャパン株式会社 | シリコンウェーハ及びその製造方法 |
| JP6044660B2 (ja) | 2015-02-19 | 2016-12-14 | 信越半導体株式会社 | シリコンウェーハの製造方法 |
| DE102015224983B4 (de) | 2015-12-11 | 2019-01-24 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren zu deren Herstellung |
-
2017
- 2017-12-22 JP JP2017246190A patent/JP7057122B2/ja active Active
-
2018
- 2018-08-02 US US16/956,282 patent/US11538721B2/en active Active
- 2018-08-02 EP EP18891783.5A patent/EP3731263A4/en active Pending
- 2018-08-02 WO PCT/JP2018/029009 patent/WO2019123706A1/ja not_active Ceased
- 2018-08-02 CN CN201880082997.6A patent/CN111480219A/zh active Pending
- 2018-08-02 KR KR1020207021032A patent/KR102463966B1/ko active Active
- 2018-08-17 TW TW107128807A patent/TWI717628B/zh active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120001301A1 (en) * | 2009-04-13 | 2012-01-05 | Shin-Etsu Handotai Co., Ltd. | Annealed wafer, method for producing annealed wafer and method for fabricating device |
| JP2017103275A (ja) * | 2015-11-30 | 2017-06-08 | 株式会社Sumco | シリコンウェーハの評価方法およびその利用 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3731263A4 (en) | 2021-09-08 |
| US20210082774A1 (en) | 2021-03-18 |
| WO2019123706A1 (ja) | 2019-06-27 |
| TW201929111A (zh) | 2019-07-16 |
| JP2019114633A (ja) | 2019-07-11 |
| US11538721B2 (en) | 2022-12-27 |
| CN111480219A (zh) | 2020-07-31 |
| TWI717628B (zh) | 2021-02-01 |
| JP7057122B2 (ja) | 2022-04-19 |
| EP3731263A1 (en) | 2020-10-28 |
| KR20200100783A (ko) | 2020-08-26 |
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