JP5477145B2 - 多結晶シリコン反応炉 - Google Patents
多結晶シリコン反応炉 Download PDFInfo
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- JP5477145B2 JP5477145B2 JP2010101337A JP2010101337A JP5477145B2 JP 5477145 B2 JP5477145 B2 JP 5477145B2 JP 2010101337 A JP2010101337 A JP 2010101337A JP 2010101337 A JP2010101337 A JP 2010101337A JP 5477145 B2 JP5477145 B2 JP 5477145B2
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- flow path
- furnace bottom
- polycrystalline silicon
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims description 48
- 238000006243 chemical reaction Methods 0.000 claims description 36
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 238000004140 cleaning Methods 0.000 description 24
- 229920000642 polymer Polymers 0.000 description 15
- 238000000034 method Methods 0.000 description 10
- 239000006227 byproduct Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000005046 Chlorosilane Substances 0.000 description 5
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 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
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/24—Deposition of silicon only
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Silicon Compounds (AREA)
Description
図3および図4に示すように、反応処理の際には、炉底40に開口する流路44の開口部44aにプラグ50が装着されている。そして、バルブ60aが閉鎖されるとともにバルブ60bが開放されることにより、流路44は原料ガス供給源62からの原料ガスの供給流路として機能する。プラグ50の連通孔50aおよび噴出ノズル12から原料ガスが炉内に供給されると、通電により高温となったシリコン芯棒20および連結部材24の表面で、多結晶シリコンが析出する。このとき、ベルジャ30の内面および炉底40の内面が冷却されているので、これらの内面上での多結晶シリコンの析出反応が抑制される反面、クロロシランポリマー等を含む反応副生成物Aが炉内面に生じやすくなる。
12 噴出ノズル(ガス供給口)
14 ガス排出口
20 シリコン芯棒
22 電極ユニット
24 連結部材
26 シード組立体
30 ベルジャ
40 炉底
40a 上面
40b 下面
40c 側面
40d 段差部
42 炉底空間部
42a 給水口
42b 排水口
44 流路
44a 開口部
45 冷却水用流路
46 内管
47 外管
48 給水管
49 フランジ
49a 貫通孔
50 プラグ
50a 連通孔
52 突出部
52a 上面
53 頭部
54 雄ネジ部
60 外部配管
60A ドレン配管
60B ガス配管
60a,60b バルブ
62 原料ガス供給源
64 排ガス処理系
66 電源回路
A 反応副生成物
Claims (7)
- 加熱したシリコン芯棒の表面に原料ガスを接触させることにより多結晶シリコンを析出させる多結晶シリコン反応炉であって、
前記シリコン芯棒が立設される炉底を有し、この炉底の上面が凹形となるように形成され、この上面の最下部に前記炉底を上下方向に貫通する流路の開口部が設けられているとともに、この開口部に着脱可能に取り付けられるプラグを備えることを特徴とする多結晶シリコン反応炉。 - 前記プラグは、前記炉底の前記上面から突出する突出部を有するとともに、この突出部の上面に開口して前記反応炉内と前記流路内とを連通させる連通孔が設けられていることを特徴とする請求項1に記載の多結晶シリコン反応炉。
- 前記炉底の外周縁部に接続してこの炉底の前記上面よりも高い段差部が周方向に沿って設けられており、
前記プラグは、前記プラグが前記開口部に取り付けられた状態で、前記突出部の前記上面が少なくとも前記段差部の上端よりも高い位置となるように形成されていることを特徴とする請求項2に記載の多結晶シリコン反応炉。 - 前記プラグはカーボンからなることを特徴とする請求項1から3のいずれかに記載の多結晶シリコン反応炉。
- 前記流路は前記原料ガスを供給する原料ガス供給源に接続されていることを特徴とする請求項1から4のいずれかに記載の多結晶シリコン反応炉。
- 前記炉底の外周縁部に接続してこの炉底の前記上面よりも高い段差部が周方向に沿って設けられていることを特徴とする請求項1に記載の多結晶シリコン反応炉。
- 円筒状の冷却水用流路が、前記流路の外周を囲むように設けられていることを特徴とする請求項1から6のいずれかに記載の多結晶シリコン反応炉。
Priority Applications (1)
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JP2010101337A JP5477145B2 (ja) | 2009-04-28 | 2010-04-26 | 多結晶シリコン反応炉 |
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JP2009110149 | 2009-04-28 | ||
JP2009110149 | 2009-04-28 | ||
JP2010101337A JP5477145B2 (ja) | 2009-04-28 | 2010-04-26 | 多結晶シリコン反応炉 |
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JP2010275183A JP2010275183A (ja) | 2010-12-09 |
JP5477145B2 true JP5477145B2 (ja) | 2014-04-23 |
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JP (1) | JP5477145B2 (ja) |
Families Citing this family (8)
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US8540818B2 (en) * | 2009-04-28 | 2013-09-24 | Mitsubishi Materials Corporation | Polycrystalline silicon reactor |
CN102485649B (zh) * | 2010-12-06 | 2014-03-05 | 西安核设备有限公司 | 一种多晶硅氢化炉 |
JP5686074B2 (ja) * | 2011-08-31 | 2015-03-18 | 三菱マテリアル株式会社 | 多結晶シリコン反応炉 |
US8875728B2 (en) * | 2012-07-12 | 2014-11-04 | Siliken Chemicals, S.L. | Cooled gas distribution plate, thermal bridge breaking system, and related methods |
DE102012218747A1 (de) * | 2012-10-15 | 2014-04-17 | Wacker Chemie Ag | Verfahren zur Abscheidung von polykristallinem Silicium |
JP6424776B2 (ja) * | 2015-08-18 | 2018-11-21 | 三菱マテリアル株式会社 | 反応炉洗浄装置及び反応炉洗浄方法 |
JP7063896B2 (ja) * | 2017-06-08 | 2022-05-09 | 株式会社トクヤマ | 洗浄装置、および洗浄方法 |
CN110655083B (zh) * | 2019-11-12 | 2021-04-27 | 四川永祥新能源有限公司 | 一种多晶硅还原炉 |
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2010
- 2010-04-26 US US12/662,597 patent/US8540818B2/en active Active
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US8540818B2 (en) | 2013-09-24 |
JP2010275183A (ja) | 2010-12-09 |
US20100269754A1 (en) | 2010-10-28 |
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