JP5284960B2 - プラズマエッチング用石英ガラス部材 - Google Patents
プラズマエッチング用石英ガラス部材 Download PDFInfo
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- JP5284960B2 JP5284960B2 JP2009525362A JP2009525362A JP5284960B2 JP 5284960 B2 JP5284960 B2 JP 5284960B2 JP 2009525362 A JP2009525362 A JP 2009525362A JP 2009525362 A JP2009525362 A JP 2009525362A JP 5284960 B2 JP5284960 B2 JP 5284960B2
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- quartz glass
- metal element
- glass member
- thickness
- plasma etching
- Prior art date
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 78
- 238000001020 plasma etching Methods 0.000 title claims description 18
- 239000000463 material Substances 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims description 55
- 239000002184 metal Substances 0.000 claims description 46
- 239000004065 semiconductor Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229910052727 yttrium Inorganic materials 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 7
- 229910052768 actinide Inorganic materials 0.000 claims description 6
- 150000001255 actinides Chemical class 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229910052735 hafnium Inorganic materials 0.000 claims description 6
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 6
- 150000002602 lanthanoids Chemical class 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 238000005530 etching Methods 0.000 description 25
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000006735 deficit Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 4
- 229910016569 AlF 3 Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- -1 AlF 3 Chemical class 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/01—Other methods of shaping glass by progressive fusion or sintering of powdered glass onto a shaping substrate, i.e. accretion, e.g. plasma oxidation deposition
-
- 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
-
- 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
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
-
- 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
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
- C03B2201/36—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers doped with rare earth metals and aluminium, e.g. Er-Al co-doped
-
- 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
- C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
-
- 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
- C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
- C03C2201/36—Doped silica-based glasses containing metals containing rare earth metals containing rare earth metals and aluminium, e.g. Er-Al co-doped
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68757—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a coating or a hardness or a material
-
- 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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
- Drying Of Semiconductors (AREA)
- Glass Melting And Manufacturing (AREA)
Description
プラズマ化したCF4ガスは、石英ガラス表面に付着すると、SiF4や、ドープ金属である、例えば、Alと反応してAlF3や、Yと反応してYF3を生成する。上述したようにSiF4は揮発するが、AlF3やYF3などは表面に残留する。この残留する量は、反応因子として、CF4ガス量と該石英ガラス側では、ドープされた金属元素量に依存する。即ち、ドープ金属元素量を低減することで弗化物の堆積量を低減することが可能である。種々検討の結果、ドープ金属元素濃度の総量が0.01wt%以上0.1wt%未満であれば、堆積弗化物の量は、いかなるプラズマエッチング条件下でも、問題とならないレベルとなった。
天然石英ガラス粉9985gとAl2O3を、11.3g及び、Y2O3を3.8gを混合して、ドープ原料粉を作製し、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属元素濃度を、X線分析で測定したところ、Al:0.06wt%、Y:0.03wt%、であった。
天然石英ガラス粉9992gとAl2O3を、5.7g及び、Y2O3を1.9gを混合して、ドープ原料粉を作製し、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属元素濃度を、X線分析で測定したところ、Al:0.03wt%、Y:0.015wt%、であった。
天然石英ガラス粉9997.5gと、Al2O3を1.9g及び、Y2O3を0.6gを混合して、ドープ原料粉を作製し、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属元素濃度を、X線分析で測定したところ、Al:0.01wt%、Y:0.005wt%、であった。
天然石英ガラス粉9992.6gと、Al2O3を5.7g及び、Nd2O3を1.8gを混合して、ドープ原料粉を作製し、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属元素濃度を、X線分析で測定したところ、Al:0.03wt%、Nd:0.015wt%、であった。
天然石英ガラス粉10000gを、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属元素濃度を、X線分析で測定したところ、Al:0.00wt%、Y:0.00wt%、であった。
天然石英ガラス粉9975gとAl2O3を18.9g及びY2O3を6.3gとを混合して、ドープ原料粉を作製し、酸水素火炎中に投入し、直径350mm×厚さ45mmのインゴットを作製した。このガラス体を加工して、直径300mm×厚さ5mmの石英ガラス円板を作製した。インゴットのドープ金属濃度を、X線分析で測定したところ、Al:0.10wt%、Y:0.05wt%、であった。
Claims (5)
- 半導体製造用治具としてプラズマエッチング工程に用いられるプラズマエッチング用石英ガラス部材であって、少なくとも、該石英ガラス部材が2種類以上の金属元素を併せて0.01wt%以上0.1wt%未満含有し、該金属元素が周期律表第3B族から選ばれた少なくとも1種の第1の金属元素と、Mg、Ca、Sr、Ba、Sc、Y、Ti、Zr、Hf、ランタノイド及びアクチノイドからなる群から選ばれた少なくとも1種の第2の金属元素からなることを特徴とするプラズマエッチング用石英ガラス部材。
- 前記第1の金属元素(M1)と、第2の金属元素(M2)の配合比が、重量比率で(M1)/(M2)=0.1〜10の範囲であることを特徴とする請求項1記載のプラズマエッチング用石英ガラス部材。
- 表面から所定の深さまでの厚さが前記金属元素を0.01wt%以上0.1wt%未満含有する金属元素含有層で形成されたことを特徴とする請求項1又は2記載のプラズマエッチング用石英ガラス部材。
- 前記金属元素含有層の厚さが少なくとも5mmであることを特徴とする請求項3記載のプラズマエッチング用石英ガラス部材。
- 請求項1〜4のいずれか1項記載の石英ガラス部材を備えたことを特徴とする半導体製造装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009525362A JP5284960B2 (ja) | 2007-08-02 | 2008-07-24 | プラズマエッチング用石英ガラス部材 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007201753 | 2007-08-02 | ||
JP2007201753 | 2007-08-02 | ||
JP2009525362A JP5284960B2 (ja) | 2007-08-02 | 2008-07-24 | プラズマエッチング用石英ガラス部材 |
PCT/JP2008/063258 WO2009017020A1 (ja) | 2007-08-02 | 2008-07-24 | プラズマエッチング用石英ガラス部材 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2009017020A1 JPWO2009017020A1 (ja) | 2010-10-21 |
JP5284960B2 true JP5284960B2 (ja) | 2013-09-11 |
Family
ID=40304250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009525362A Active JP5284960B2 (ja) | 2007-08-02 | 2008-07-24 | プラズマエッチング用石英ガラス部材 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110232847A1 (ja) |
EP (1) | EP2194030B1 (ja) |
JP (1) | JP5284960B2 (ja) |
TW (1) | TWI414503B (ja) |
WO (1) | WO2009017020A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8642786B2 (en) | 2008-02-29 | 2014-02-04 | Nissan Chemical Industries, Ltd. | Process for producing thiophene compound and intermediate thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2012002159A (es) * | 2009-08-21 | 2012-07-04 | Momentive Performance Mat Inc | Tuberia de cuarzo fundido para empacado farmaceutico. |
Citations (8)
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JP2002220257A (ja) * | 2001-01-16 | 2002-08-09 | Shinetsu Quartz Prod Co Ltd | 石英ガラス及び石英ガラス治具並びにそれらの製造方法 |
JP2002356345A (ja) * | 2001-06-01 | 2002-12-13 | Tosoh Corp | 耐食性石英ガラスの製造方法、これを用いた部材及び装置 |
JP2002356337A (ja) * | 2001-06-01 | 2002-12-13 | Tosoh Corp | プラズマ溶融によるアルミニウム及び/又はイットリウム含有複合石英ガラスの製造方法及びその用途 |
JP2002356346A (ja) * | 2001-03-26 | 2002-12-13 | Tosoh Corp | 高耐久性石英ガラス、これを用いた部材及び装置 |
JP2004284828A (ja) * | 2002-03-11 | 2004-10-14 | Tosoh Corp | 高耐久性石英ガラス、製造方法、これを用いた部材及び装置 |
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TWI293947B (ja) * | 2001-03-26 | 2008-03-01 | Tosoh Corp | |
US7084084B2 (en) * | 2002-03-11 | 2006-08-01 | Tosoh Corporation | Highly durable silica glass, process for producing same, member comprised thereof, and apparatus provided therewith |
-
2008
- 2008-07-24 EP EP08791510.4A patent/EP2194030B1/en not_active Not-in-force
- 2008-07-24 WO PCT/JP2008/063258 patent/WO2009017020A1/ja active Application Filing
- 2008-07-24 US US12/671,903 patent/US20110232847A1/en not_active Abandoned
- 2008-07-24 JP JP2009525362A patent/JP5284960B2/ja active Active
- 2008-08-01 TW TW097129401A patent/TWI414503B/zh active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002220257A (ja) * | 2001-01-16 | 2002-08-09 | Shinetsu Quartz Prod Co Ltd | 石英ガラス及び石英ガラス治具並びにそれらの製造方法 |
JP2002356346A (ja) * | 2001-03-26 | 2002-12-13 | Tosoh Corp | 高耐久性石英ガラス、これを用いた部材及び装置 |
JP2002356345A (ja) * | 2001-06-01 | 2002-12-13 | Tosoh Corp | 耐食性石英ガラスの製造方法、これを用いた部材及び装置 |
JP2002356337A (ja) * | 2001-06-01 | 2002-12-13 | Tosoh Corp | プラズマ溶融によるアルミニウム及び/又はイットリウム含有複合石英ガラスの製造方法及びその用途 |
JP2004284828A (ja) * | 2002-03-11 | 2004-10-14 | Tosoh Corp | 高耐久性石英ガラス、製造方法、これを用いた部材及び装置 |
JP2004323246A (ja) * | 2003-04-21 | 2004-11-18 | Shinetsu Quartz Prod Co Ltd | 石英ガラス治具の製造方法及び石英ガラス治具 |
JP2005336011A (ja) * | 2004-05-27 | 2005-12-08 | Tosoh Corp | 耐食性ガラス部材およびその製造方法並びにそれを用いた装置 |
WO2006038349A1 (ja) * | 2004-09-30 | 2006-04-13 | Shin-Etsu Quartz Products Co., Ltd. | プラスマ耐食性に優れた石英ガラス及びその製造方法 |
Cited By (1)
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US8642786B2 (en) | 2008-02-29 | 2014-02-04 | Nissan Chemical Industries, Ltd. | Process for producing thiophene compound and intermediate thereof |
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WO2009017020A1 (ja) | 2009-02-05 |
TWI414503B (zh) | 2013-11-11 |
TW200920710A (en) | 2009-05-16 |
EP2194030A1 (en) | 2010-06-09 |
EP2194030B1 (en) | 2017-12-27 |
US20110232847A1 (en) | 2011-09-29 |
JPWO2009017020A1 (ja) | 2010-10-21 |
EP2194030A4 (en) | 2014-08-20 |
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