JP7400835B2 - 石英ガラスルツボ及びその製造方法 - Google Patents
石英ガラスルツボ及びその製造方法 Download PDFInfo
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- JP7400835B2 JP7400835B2 JP2021566875A JP2021566875A JP7400835B2 JP 7400835 B2 JP7400835 B2 JP 7400835B2 JP 2021566875 A JP2021566875 A JP 2021566875A JP 2021566875 A JP2021566875 A JP 2021566875A JP 7400835 B2 JP7400835 B2 JP 7400835B2
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- crucible
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 166
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 238000000034 method Methods 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000010453 quartz Substances 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 22
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 16
- 238000005530 etching Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 description 88
- 239000010410 layer Substances 0.000 description 85
- 229910052710 silicon Inorganic materials 0.000 description 66
- 239000010703 silicon Substances 0.000 description 66
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 65
- 239000002344 surface layer Substances 0.000 description 63
- 239000012535 impurity Substances 0.000 description 28
- 230000008569 process Effects 0.000 description 22
- 239000002994 raw material Substances 0.000 description 17
- 238000004090 dissolution Methods 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 8
- 238000010309 melting process Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000000005 dynamic secondary ion mass spectrometry Methods 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010314 arc-melting process Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- -1 silicon alkoxide Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
- 229910021489 α-quartz Inorganic materials 0.000 description 1
Classifications
-
- 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
- C30B15/10—Crucibles or containers for supporting the melt
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/09—Other methods of shaping glass by fusing powdered glass in a shaping mould
- C03B19/095—Other methods of shaping glass by fusing powdered glass in a shaping mould by centrifuging, e.g. arc discharge in rotating mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/50—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with alkali metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/54—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with beryllium, magnesium or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/50—Doped silica-based glasses containing metals containing alkali metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/54—Doped silica-based glasses containing metals containing beryllium, magnesium or alkaline earth metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
10a 側壁部
10b 底部
10c コーナー部
10i 内表面
10o 外表面
11 透明層
12 気泡層
14 モールド
14i モールドの内面
14a 通気孔
15 アーク電極
16 堆積層
16A 合成石英粉
16B 天然石英粉
20 斜め切削装置
21 切削刃
S11 ルツボ製造ステップ
S12 純水洗浄ステップ
S13 フッ酸洗浄(エッチング)ステップ
S14 仕上げ洗浄ステップ
S21 原料融解工程
S22 着液工程
S23 ネッキング工程
S24 ショルダー部育成工程
S25 直胴部育成工程
S26 テイル部育成工程
S27 冷却工程
X 表層部
Z1 第1表層部
Z2 第2表層部
Z3 第3表層部
Claims (5)
- Na,K,Caの合計濃度の内表面からの深さ方向の分布のピークが前記内表面から16μm以上32μm以下の深さ範囲内に存在し、
前記内表面から0μm以上8μm以下の深さ範囲内におけるLi,Al,Na,K,Caの合計濃度の平均値は3.6×1016atoms/cc以上5.5×1017atoms/cc以下であり、
前記内表面から16μm以上32μm以下の深さ範囲内におけるNa,K,Caの合計濃度のピーク値が、前記内表面から0μm以上8μm以下の深さ範囲内におけるNa,K,Caの合計濃度の平均値(基準濃度)の2~19倍であり、
前記内表面からの32μm以上1000μm以下の深さ範囲内におけるNa,K,Caの合計濃度の平均値が、前記基準濃度の0.6倍以上1倍以下であることを特徴とする石英ガラスルツボ。 - 前記内表面から32μm以上1000μm以下の深さ範囲内におけるNa,K,Caの合計濃度が、深さ方向を正方向として負の濃度勾配を有する、請求項1に記載の石英ガラスルツボ。
- 気泡を含まないシリカガラスからなり、前記内表面を構成する透明層と、多数の気泡を含むシリカガラスからなり、前記透明層の外側に設けられた気泡層とを備え、前記透明層の厚さが1mm以上である、請求項1又は2に記載の石英ガラスルツボ。
- 回転するモールドの内面に堆積させた原料石英粉をアーク溶融して石英ガラスルツボを製造する工程と、
前記石英ガラスルツボの内表面を純水で洗浄して前記内表面の近傍のシリカガラス中に含まれるNa,K,Caの合計濃度を洗浄前よりも低減させる工程と、
フッ酸を含む洗浄液を用いて前記内表面をエッチングする工程と、
前記石英ガラスルツボの全体を純水で仕上げ洗浄する工程とを備え、
前記内表面を純水で洗浄して前記内表面の近傍のシリカガラス中に含まれるNa,K,Caの合計濃度を低減させる工程で使用する前記純水の比抵抗が17MΩcm以上、使用水量が125リットル/個以上、水温が45~99℃であり、
前記内表面をエッチングする工程における、前記内表面のエッチング量は5μm以上10μm以下であり、これによりNa,K,Caの合計濃度のピークを前記内表面から16μm以上32μm以下の深さ範囲内に配置し、
前記仕上げ洗浄する工程で使用する前記純水の水温が35℃以下であることを特徴とする石英ガラスルツボの製造方法。 - 前記内表面を純水で洗浄して前記内表面の近傍のシリカガラス中に含まれるNa,K,Caの合計濃度を低減させる工程で使用する前記純水の水温が55~65℃である、請求項4に記載の石英ガラスルツボの製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019231815 | 2019-12-23 | ||
JP2019231815 | 2019-12-23 | ||
PCT/JP2020/040832 WO2021131321A1 (ja) | 2019-12-23 | 2020-10-30 | 石英ガラスルツボ及びその製造方法 |
Publications (3)
Publication Number | Publication Date |
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JPWO2021131321A1 JPWO2021131321A1 (ja) | 2021-07-01 |
JPWO2021131321A5 JPWO2021131321A5 (ja) | 2022-08-09 |
JP7400835B2 true JP7400835B2 (ja) | 2023-12-19 |
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Application Number | Title | Priority Date | Filing Date |
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JP2021566875A Active JP7400835B2 (ja) | 2019-12-23 | 2020-10-30 | 石英ガラスルツボ及びその製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230010489A1 (ja) |
JP (1) | JP7400835B2 (ja) |
KR (1) | KR20220107274A (ja) |
CN (1) | CN114846180A (ja) |
DE (1) | DE112020006320T5 (ja) |
TW (1) | TWI762073B (ja) |
WO (1) | WO2021131321A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010280567A (ja) | 2010-09-17 | 2010-12-16 | Covalent Materials Corp | シリカガラスルツボの製造方法 |
JP2012136379A (ja) | 2010-12-27 | 2012-07-19 | Covalent Materials Corp | シリカガラスルツボ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2840195B2 (ja) * | 1994-05-31 | 1998-12-24 | 信越石英株式会社 | 単結晶引上用石英ガラスルツボの製造方法 |
JPH1143392A (ja) * | 1997-07-24 | 1999-02-16 | Kusuwa Kuorutsu:Kk | 単結晶引き上げ用石英ガラスルツボの洗浄方法 |
JP4437368B2 (ja) * | 2000-12-12 | 2010-03-24 | コバレントマテリアル株式会社 | シリコン単結晶引上げ用石英ガラスルツボの製造方法 |
JP4233059B2 (ja) | 2003-05-01 | 2009-03-04 | 信越石英株式会社 | シリコン単結晶引上げ用石英ガラスルツボ及びその製造方法 |
JP2005306708A (ja) | 2004-03-26 | 2005-11-04 | Kuramoto Seisakusho Co Ltd | 石英ルツボ |
JP4995069B2 (ja) | 2007-12-28 | 2012-08-08 | ジャパンスーパークォーツ株式会社 | 内面結晶化ルツボおよび該ルツボを用いた引上げ方法 |
JP5500689B2 (ja) * | 2010-12-03 | 2014-05-21 | 株式会社Sumco | シリカガラスルツボ |
JP5543326B2 (ja) | 2010-12-27 | 2014-07-09 | コバレントマテリアル株式会社 | シリコン単結晶引上げ用シリカガラスルツボ |
JP5308594B1 (ja) * | 2012-01-13 | 2013-10-09 | 信越石英株式会社 | 単結晶シリコン引き上げ用シリカ容器及びその製造方法 |
JP6885287B2 (ja) * | 2017-09-29 | 2021-06-09 | 株式会社Sumco | 石英ルツボの不純物分析方法 |
-
2020
- 2020-10-30 WO PCT/JP2020/040832 patent/WO2021131321A1/ja active Application Filing
- 2020-10-30 DE DE112020006320.8T patent/DE112020006320T5/de active Pending
- 2020-10-30 KR KR1020227022558A patent/KR20220107274A/ko not_active Application Discontinuation
- 2020-10-30 CN CN202080089556.6A patent/CN114846180A/zh active Pending
- 2020-10-30 JP JP2021566875A patent/JP7400835B2/ja active Active
- 2020-10-30 US US17/783,616 patent/US20230010489A1/en active Pending
- 2020-12-08 TW TW109143202A patent/TWI762073B/zh active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010280567A (ja) | 2010-09-17 | 2010-12-16 | Covalent Materials Corp | シリカガラスルツボの製造方法 |
JP2012136379A (ja) | 2010-12-27 | 2012-07-19 | Covalent Materials Corp | シリカガラスルツボ |
Also Published As
Publication number | Publication date |
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WO2021131321A1 (ja) | 2021-07-01 |
US20230010489A1 (en) | 2023-01-12 |
CN114846180A (zh) | 2022-08-02 |
KR20220107274A (ko) | 2022-08-02 |
TW202129089A (zh) | 2021-08-01 |
DE112020006320T5 (de) | 2022-10-06 |
JPWO2021131321A1 (ja) | 2021-07-01 |
TWI762073B (zh) | 2022-04-21 |
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