JP2008063176A - 炭化珪素製造装置 - Google Patents
炭化珪素製造装置 Download PDFInfo
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- JP2008063176A JP2008063176A JP2006241642A JP2006241642A JP2008063176A JP 2008063176 A JP2008063176 A JP 2008063176A JP 2006241642 A JP2006241642 A JP 2006241642A JP 2006241642 A JP2006241642 A JP 2006241642A JP 2008063176 A JP2008063176 A JP 2008063176A
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims description 70
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 85
- 239000013078 crystal Substances 0.000 claims abstract description 64
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 46
- 230000033001 locomotion Effects 0.000 claims description 44
- 239000002244 precipitate Substances 0.000 claims description 40
- 239000002994 raw material Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910002804 graphite Inorganic materials 0.000 claims description 16
- 239000010439 graphite Substances 0.000 claims description 16
- 230000002265 prevention Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 6
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 239000003870 refractory metal Substances 0.000 claims description 3
- 230000008018 melting Effects 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 106
- 230000000694 effects Effects 0.000 description 7
- 238000007790 scraping Methods 0.000 description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000001294 propane Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 230000003685 thermal hair damage Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 229910003468 tantalcarbide Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
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- 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
- C30B29/10—Inorganic compounds or compositions
- C30B29/36—Carbides
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- 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
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
- C23C16/325—Silicon carbide
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- 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
- C23C16/44—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 method of coating
- C23C16/455—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 method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45578—Elongated nozzles, tubes with holes
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- 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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/12—Substrate holders or susceptors
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- 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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/14—Feed and outlet means for the gases; Modifying the flow of the reactive gases
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/16—Controlling or regulating
- C30B25/165—Controlling or regulating the flow of the reactive gases
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- 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
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Abstract
【解決手段】反応析出物が発生する部位において、高融点材料からなる棒状部材16を結晶成長開始時から連続的に公転させることにより、反応析出物が成長する以前に反応析出物を下方に落下除去させたり、その成長自体が抑制されるようにする。さらに、棒状部材16を結晶成長開始時から連続的に自転させることにより、棒状部材16自身への反応析出物付着を防止する。これにより、ガス導入管3が反応析出物によって閉塞されることを防止でき、ガスの連続長時間投入(すなわち結晶の長尺成長)を可能にできる。
【選択図】図1
Description
本発明の第1実施形態について説明する。図1は、本実施形態のSiC製造装置の断面図である。また、図2(a)は、図1に示すSiC製造装置の部分拡大図、図2(b)は、図2(a)の上面図である。以下、これらの図を参照して本実施形態のSiC製造装置について説明する。
本発明の第2実施形態について説明する。本実施形態のSiC製造装置は、第1実施形態に対して反応析出物付着防止機構4の構成を変更したものであり、その他に関しては第1実施形態と同様であるため、異なる部分についてのみ説明する。
本発明の第3実施形態について説明する。本実施形態のSiC製造装置は、第1、第2実施形態に対して反応析出物付着防止機構4の構成を変更したものであり、その他に関しては第1実施形態と同様であるため、異なる部分についてのみ説明する。
上記実施形態では棒状部材16が略円柱状若しくは円筒状として説明したが、断面楕円形や断面多角形、断面星型等、様々な形状が可能である。その場合、棒状部材16が回転したときに最もガス導入管3の内壁面に近づくときの距離が5mm以下となるようにすれば良い。
Claims (13)
- 黒鉛るつぼ(1)に配置した種結晶(9)に対して、前記黒鉛るつぼ(1)の外部から原料ガスを供給することにより、前記種結晶(9)の表面に炭化珪素単結晶を成長させる炭化珪素製造装置において、
前記原料ガスの通路となる円柱状の空洞部が形成されたガス導入管(3)の内壁面に沿って、前記ガスの流動方向に延設された棒状部材(16)と、
前記棒状部材(16)を公転運動させると共に、前記棒状部材(16)を該棒状部材(16)の延設方向を軸として自転運動させる自公転手段(12〜17)と、を備え、
前記自公転手段(12〜15、17)にて前記棒状部材(16)を自公転させ、前記ガス導入管(3)の内壁面に沿って前記棒状部材(16)を移動させる反応析出物付着防止機構(4)を有していることを特徴とする炭化珪素製造装置。 - 前記棒状部材は、高融点金属材料、炭化物系セラミックス、もしくは、窒化物系セラミックスのいずれか1つであることを特徴とする請求項1に記載の炭化珪素製造装置。
- 前記棒状部材(16)は、該棒状部材(16)の側壁のうち前記自転中心軸から最も遠い位置までの距離が0.5〜10mmの範囲内であることを特徴とする請求項1または2に記載の炭化珪素製造装置。
- 前記棒状部材(16)と前記ガス導入管(3)の内壁面までの距離が最も短くなったときのクリアランスが0〜5mmの範囲内であることを特徴とする請求項3に記載の炭化珪素製造装置。
- 前記棒状部材(16)にはネジ溝が形成されており、前記ネジ溝内に入り込んだ反応析出物が自転により該ネジ溝を介して前記ガスの流動方向の上流側に移動させられるように構成されていることを特徴とする請求項1ないし4のいずれか1つに記載の炭化珪素製造装置。
- 前記棒状部材(16)は、前記自公転手段(12〜15、17)に対して複数個配置されていることを特徴とする請求項1ないし5のいずれか1つに記載の炭化珪素製造装置。
- 前記ガス導入管(3)は、前記炭化珪素単結晶を成長させる際に1000〜2000℃となる温度帯域を有し、
前記棒状部材(16)は、前記ガス導入管(3)のうち1000〜2000℃となる温度帯域となる場所に到達する長さに設定されていることを特徴とする請求項1ないし6のいずれか1つに記載の炭化珪素製造装置。 - 前記自公転手段(12〜15、17)および前記棒状部材(16)を前記原料ガスの流動方向の上下流に向かって上下移動させる上下移動機構(20)を備え、
前記棒状部材(16)は、前記上下移動機構(20)にて上下移動させられたときに、前記ガス導入管(3)のうち1000〜2000℃となる温度帯域の場所に到達する長さに設定されていることを特徴とする請求項7に記載の炭化珪素製造装置。 - 前記上下移動機構(20)にて前記棒状部材(16)が最も前記原料ガスの流動方向の上流側に移動させられているときに、該棒状部材(16)の先端位置が前記ガス導入管(3)のうち1000℃となる温度帯域に到達する場所の長さに設定されていることを特徴とする請求項8に記載の炭化珪素製造装置。
- 前記上下移動機構(20)による前記自公転手段(12〜15、17)および前記棒状部材(16)の上下移動の移動量は、前記ガス導入管(3)の1000℃となる温度帯域の場所から2000℃となる温度帯域の場所までの長さに設定されていることを特徴とする請求項8または9に記載の炭化珪素製造装置。
- 前記上下移動機構(20)による前記棒状部材(16)の上下移動の速度は0.1〜10mm/secの範囲内であることを特徴とする請求項8ないし10のいずれか1つに記載の炭化珪素製造装置。
- 前記上下移動機構(20)による前記棒状部材(16)の上下移動のサイクルは、1分〜30分の間に1回の範囲内であることを特徴とする請求項8ないし11のいずれか1つに記載の炭化珪素製造装置。
- 前記棒状部材(16)の自転の速度および公転の速度は、1〜100rpmの範囲内であることを特徴とする請求項1ないし12のいずれか1つに記載の炭化珪素製造装置。
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JP2006241642A JP4923881B2 (ja) | 2006-09-06 | 2006-09-06 | 炭化珪素製造装置 |
US11/896,504 US7879150B2 (en) | 2006-09-06 | 2007-09-04 | Silicon carbide manufacturing device and method of manufacturing silicon carbide |
EP07115627A EP1900856B1 (en) | 2006-09-06 | 2007-09-04 | Silicon carbide manufacturing device and method of manufacturing silicon carbide |
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JP2022516780A (ja) * | 2019-01-09 | 2022-03-02 | エルピーイー ソシエタ ペル アチオニ | 半導体材料の堆積のための回転要素および反応器を備えた反応チャンバ |
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JP2000241077A (ja) * | 1999-02-18 | 2000-09-08 | Mitsui Eng & Shipbuild Co Ltd | ロータリーキルン |
JP2000354753A (ja) * | 1999-06-14 | 2000-12-26 | Pauretsuku:Kk | 攪拌造粒機 |
JP2003002795A (ja) * | 2001-06-22 | 2003-01-08 | Toyota Central Res & Dev Lab Inc | 炭化珪素単結晶の製造方法及び製造装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2022516780A (ja) * | 2019-01-09 | 2022-03-02 | エルピーイー ソシエタ ペル アチオニ | 半導体材料の堆積のための回転要素および反応器を備えた反応チャンバ |
JP7536770B2 (ja) | 2019-01-09 | 2024-08-20 | エルピーイー ソシエタ ペル アチオニ | 半導体材料の堆積のための回転要素および反応器を備えた反応チャンバ |
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JP4923881B2 (ja) | 2012-04-25 |
US7879150B2 (en) | 2011-02-01 |
US20080053371A1 (en) | 2008-03-06 |
EP1900856A2 (en) | 2008-03-19 |
EP1900856B1 (en) | 2012-03-07 |
EP1900856A3 (en) | 2009-05-20 |
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