JP2017056959A - 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 - Google Patents
樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 Download PDFInfo
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- JP2017056959A JP2017056959A JP2015181876A JP2015181876A JP2017056959A JP 2017056959 A JP2017056959 A JP 2017056959A JP 2015181876 A JP2015181876 A JP 2015181876A JP 2015181876 A JP2015181876 A JP 2015181876A JP 2017056959 A JP2017056959 A JP 2017056959A
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title claims abstract description 27
- 229920002554 vinyl polymer Polymers 0.000 title claims abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000012535 impurity Substances 0.000 claims abstract description 30
- 239000011575 calcium Substances 0.000 claims abstract description 22
- 239000011651 chromium Substances 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 22
- 239000011572 manganese Substances 0.000 claims abstract description 22
- 239000011734 sodium Substances 0.000 claims abstract description 22
- 239000010936 titanium Substances 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 13
- 229910052796 boron Inorganic materials 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 13
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 11
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 11
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 239000010941 cobalt Substances 0.000 claims abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
- 239000011733 molybdenum Substances 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 11
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 11
- 239000011591 potassium Substances 0.000 claims abstract description 11
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 11
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 11
- 239000010937 tungsten Substances 0.000 claims abstract description 11
- 238000004949 mass spectrometry Methods 0.000 claims abstract description 8
- 238000004445 quantitative analysis Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 229940074355 nitric acid Drugs 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000011109 contamination Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 229920000092 linear low density polyethylene Polymers 0.000 description 3
- 239000004707 linear low-density polyethylene Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
- C30B35/002—Crucibles or containers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
- C01B33/035—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/18—Monomers containing fluorine
- C08F14/26—Tetrafluoroethene
-
- 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
- C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
-
- 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
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Silicon Compounds (AREA)
- Bag Frames (AREA)
- Wrappers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
【解決手段】本発明では、多結晶シリコンを製造するに際し、一貫して、下記の不純物表面濃度の樹脂材料を用いる。1wt%の硝酸水溶液を抽出液としてICP質量分析法で定量分析して得られた値が、リン(P)濃度が50pptw以下、ヒ素(As)濃度が2pptw以下、ボロン(B)濃度が20pptw以下、アルミニウム(Al)濃度が10pptw以下、鉄(Fe)、クロム(Cr)、ニッケル(Ni)、銅(Cu)、ナトリウム(Na)、亜鉛(Zn)の6元素の合計が80pptw以下、リチウム(Li)、カリウム(K)、カルシウム(Ca)、チタン(Ti)、マンガン(Mn)、コバルト(Co)、モリブデン(Mo)、錫(Sn)、タングステン(W)、鉛(Pb)の10元素の合計が100pptw以下。
【選択図】なし
Description
多結晶シリコン棒の育成後からCZ単結晶シリコン製造用原料である多結晶シリコン塊を製造するプロセスにおいて、一貫して洗浄なしの樹脂材料を用いて製造した多結晶シリコン塊を原料とした場合と、一貫して洗浄ありの樹脂材料を用いて製造した多結晶シリコン塊を原料とした場合とで、最終的に得られるCZ単結晶シリコンのバルク中の不純物濃度を比較した。その結果を表2に示す。
多結晶シリコン棒の育成後からこの多結晶シリコン棒を用いてFZ単結晶シリコンロッドを製造するプロセスにおいて、一貫して洗浄なしの樹脂材料を用いて製造した多結晶シリコン棒を原料とした場合と、一貫して洗浄ありの樹脂材料を用いて製造した多結晶シリコン棒を原料とした場合とで、最終的に得られるFZ単結晶シリコンのバルク中の不純物濃度を比較した。その結果を表3に示す。
Claims (10)
- 表面の不純物を、1wt%の硝酸水溶液を抽出液としてICP質量分析法で定量分析して得られた値が、リン(P)濃度が50pptw以下、ヒ素(As)濃度が2pptw以下、ボロン(B)濃度が20pptw以下、アルミニウム(Al)濃度が10pptw以下、鉄(Fe)、クロム(Cr)、ニッケル(Ni)、銅(Cu)、ナトリウム(Na)、亜鉛(Zn)の6元素の合計が80pptw以下、リチウム(Li)、カリウム(K)、カルシウム(Ca)、チタン(Ti)、マンガン(Mn)、コバルト(Co)、モリブデン(Mo)、錫(Sn)、タングステン(W)、鉛(Pb)の10元素の合計が100pptw以下である、樹脂材料。
- バルク不純物濃度が、リン(P)濃度が3ppmw以下、ヒ素(As)濃度が1ppmw以下、ボロン(B)濃度が4ppmw以下、アルミニウム(Al)濃度が3ppmw以下である、請求項1に記載の樹脂材料。
- 前記樹脂材料はプラスチック材料である、請求項1または2に記載の樹脂材料。
- 前記プラスチック材料はビニール材料である、請求項3に記載の樹脂材料。
- ビニール材料からなる袋であって、
該袋の内側表面の不純物を、1wt%の硝酸水溶液を抽出液としてICP質量分析法で定量分析して得られた値が、リン(P)濃度が50pptw以下、ヒ素(As)濃度が2pptw以下、ボロン(B)濃度が20pptw以下、アルミニウム(Al)濃度が10pptw以下、鉄(Fe)、クロム(Cr)、ニッケル(Ni)、銅(Cu)、ナトリウム(Na)、亜鉛(Zn)の6元素の合計が80pptw以下、リチウム(Li)、カリウム(K)、カルシウム(Ca)、チタン(Ti)、マンガン(Mn)、コバルト(Co)、モリブデン(Mo)、錫(Sn)、タングステン(W)、鉛(Pb)の10元素の合計が100pptw以下である、ビニール製袋。 - バルク不純物濃度が、リン(P)濃度が3ppmw以下、ヒ素(As)濃度が1ppmw以下、ボロン(B)濃度が4ppmw以下、アルミニウム(Al)濃度が3ppmw以下である、請求項5に記載のビニール製袋。
- シーメンス法により合成された多結晶シリコン棒を、請求項5または6に記載のビニール製袋内に前記多結晶シリコン棒を収容した状態で取り扱う工程を含む、多結晶シリコン棒の製造方法。
- シーメンス法により合成された多結晶シリコン棒から多結晶シリコン塊を製造するに際し、請求項1〜4の何れか1項に記載の樹脂材料からなる治具を用いる工程を含む、多結晶シリコン塊の製造方法。
- 請求項5または6に記載のビニール製袋に梱包された、シーメンス法により合成された多結晶シリコン棒。
- 請求項5または6に記載のビニール製袋に梱包された、シーメンス法により合成された多結晶シリコン棒を破砕して得られた多結晶シリコン塊。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015181876A JP6472732B2 (ja) | 2015-09-15 | 2015-09-15 | 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 |
DE112016003700.7T DE112016003700T5 (de) | 2015-09-15 | 2016-08-02 | Harzmaterial, Vinylbeutel, polykristalliner Siliziumstab, polykristalline Siliziummasse |
CN201680045027.XA CN107922653A (zh) | 2015-09-15 | 2016-08-02 | 树脂材料、乙烯树脂制袋、多晶硅棒、多晶硅块 |
PCT/JP2016/072596 WO2017047260A1 (ja) | 2015-09-15 | 2016-08-02 | 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 |
US15/747,834 US11230796B2 (en) | 2015-09-15 | 2016-08-02 | Resin material, vinyl bag, polycrystalline silicon rod, polycrystalline silicon mass |
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JP2015181876A JP6472732B2 (ja) | 2015-09-15 | 2015-09-15 | 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 |
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JP2019009372A Division JP7097309B2 (ja) | 2019-01-23 | 2019-01-23 | 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 |
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JP2017056959A true JP2017056959A (ja) | 2017-03-23 |
JP6472732B2 JP6472732B2 (ja) | 2019-02-20 |
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JP2015181876A Ceased JP6472732B2 (ja) | 2015-09-15 | 2015-09-15 | 樹脂材料、ビニール製袋、多結晶シリコン棒、多結晶シリコン塊 |
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US (1) | US11230796B2 (ja) |
JP (1) | JP6472732B2 (ja) |
CN (1) | CN107922653A (ja) |
DE (1) | DE112016003700T5 (ja) |
WO (1) | WO2017047260A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020090804A1 (ja) | 2018-10-31 | 2020-05-07 | 株式会社トクヤマ | ポリシリコンの防汚方法 |
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WO2020090804A1 (ja) | 2018-10-31 | 2020-05-07 | 株式会社トクヤマ | ポリシリコンの防汚方法 |
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WO2020204141A1 (ja) | 2019-04-05 | 2020-10-08 | 株式会社トクヤマ | 多結晶シリコン原料 |
JP2020186948A (ja) * | 2019-05-10 | 2020-11-19 | 三菱マテリアル株式会社 | 多結晶シリコン塊表面の金属不純物分析方法 |
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WO2017047260A1 (ja) | 2017-03-23 |
US20180223450A1 (en) | 2018-08-09 |
CN107922653A (zh) | 2018-04-17 |
US11230796B2 (en) | 2022-01-25 |
DE112016003700T5 (de) | 2018-04-26 |
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