JP5596788B2 - サファイア単結晶成長方法とその装置 - Google Patents
サファイア単結晶成長方法とその装置 Download PDFInfo
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- JP5596788B2 JP5596788B2 JP2012527816A JP2012527816A JP5596788B2 JP 5596788 B2 JP5596788 B2 JP 5596788B2 JP 2012527816 A JP2012527816 A JP 2012527816A JP 2012527816 A JP2012527816 A JP 2012527816A JP 5596788 B2 JP5596788 B2 JP 5596788B2
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- sapphire
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- 229910052594 sapphire Inorganic materials 0.000 title claims description 119
- 239000010980 sapphire Substances 0.000 title claims description 119
- 238000002109 crystal growth method Methods 0.000 title claims description 16
- 239000013078 crystal Substances 0.000 claims description 189
- 238000010438 heat treatment Methods 0.000 claims description 92
- 238000001816 cooling Methods 0.000 claims description 56
- 238000002844 melting Methods 0.000 claims description 41
- 230000008018 melting Effects 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 33
- 238000000137 annealing Methods 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 6
- 235000012431 wafers Nutrition 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005231 Edge Defined Film Fed Growth Methods 0.000 description 1
- 238000000563 Verneuil process Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000000926 separation method Methods 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
- 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
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/02—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method without using solvents
-
- 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
- C30B29/16—Oxides
- C30B29/20—Aluminium oxides
-
- 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
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger 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
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/002—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
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/003—Heating or cooling of the melt or the crystallised material
-
- 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
- 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
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/36—Single-crystal growth by pulling from a melt, e.g. Czochralski method characterised by the seed, e.g. its crystallographic orientation
-
- 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
- C30B17/00—Single-crystal growth onto a seed which remains in the melt during growth, e.g. Nacken-Kyropoulos method
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
- Y10T117/10—Apparatus
- Y10T117/1024—Apparatus for crystallization from liquid or supercritical state
- Y10T117/1092—Shape defined by a solid member other than seed or product [e.g., Bridgman-Stockbarger]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
10:ファーネス 11〜16:分割領域(zone)
20,21:坩堝 21a:突出部
30:発熱体 31:電極
32:側部発熱体 33:連結発熱体
40:冷却手段 50:溶融物
51,52:種晶
サファイア単結晶成長装置スペック及び使われた材料は下記の通りである。
坩堝材質:Mo(モリブデン)
坩堝の大きさ:110W*200H*400L(単位mm)
種晶:30W*10H*380L(単位mm)
冷却板(冷却手段):Mo 20*360L(単位mm)
分割領域数:6個(左右側部を含む)
ヒーター(発熱体):高純度等方性グラファイト8t
温度センサー:パイロメーター、測定地点:ヒーター表面
温度調節方式:PID
冷却板冷却方式:水冷式
サファイア単結晶成長装置スペック及び使われた材料は下記の通りである。
坩堝材質:Mo(モリブデン)
坩堝の大きさ:正三角形辺の長さ200*400L(単位mm)
種晶:30W*26H*380L(単位mm)
冷却板:Mo 20*360L(単位mm、上部に溝加工)
分割領域数:6個
発熱体:高純度等方性グラファイト8t
温度センサー:パイロメーター、測定地点:ヒーター表面
温度調節方式:PID
冷却板冷却方式:水冷式(結晶成長後冷却板を坩堝底から分離)
Claims (4)
- サファイアスクラップの溶融温度以上に内部温度が上昇するように、加熱されそして周囲から断熱されるファーネス;前記ファーネス内部に位置し、サファイアスクラップが溶融して、そして種晶から単結晶が長く成長されるための坩堝;前記サファイアスクラップを溶融させるために前記坩堝外部に設けられた発熱体;及び前記種晶の完全溶融を防ぐため坩堝の底に設けられた冷却手段を含むサファイア単結晶成長装置において、
前記坩堝の水平方向温度を均一にするために、前記坩堝の外部に発熱体が多数の分割された状態に設けられて、各々独立的に作動し、
前記発熱体が、垂直方向の温度勾配を得て、電極の数を減少させるために、前記坩堝の外側壁に隣り合うように坩堝の両側に設けられ、そして各々一つの電極に連結する多数の側部発熱体、及び前記側部発熱体の上部において、側部発熱体を相互に連結させる連結発熱体を含み、そして
前記サファイアスクラップの未溶融または前記種晶の完全溶融を防ぐために、前記種晶が配置される坩堝はV字端面形状を有する
ことを特徴とするサファイア単結晶成長装置。 - 前記分割された発熱体の長さは、5〜25cmであることを特徴とする請求項1に記載のサファイア単結晶成長装置。
- 請求項1に記載のサファイア単結晶成長装置を用いて、坩堝の外部に設けられた多数の発熱体で坩堝内部の温度を調節しながら、サファイアスクラップを溶融させ、種晶から結晶を成長させる工程を含むサファイア単結晶成長方法。
- 前記結晶成長が終了した後、室温で冷却する前に前記冷却手段による冷却を遮断し、そして温度を一定に維持することによって、アニーリングを実施する工程をさらに含むことを特徴とする請求項3に記載のサファイア単結晶成長方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0083722 | 2009-09-05 | ||
KR1020090083722A KR101136143B1 (ko) | 2009-09-05 | 2009-09-05 | 사파이어 단결정 성장방법과 그 장치 |
PCT/KR2010/005731 WO2011027992A2 (ko) | 2009-09-05 | 2010-08-26 | 사파이어 단결정 성장방법과 그 장치 |
Publications (2)
Publication Number | Publication Date |
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JP2013503810A JP2013503810A (ja) | 2013-02-04 |
JP5596788B2 true JP5596788B2 (ja) | 2014-09-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012527816A Expired - Fee Related JP5596788B2 (ja) | 2009-09-05 | 2010-08-26 | サファイア単結晶成長方法とその装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9790618B2 (ja) |
EP (1) | EP2474651A4 (ja) |
JP (1) | JP5596788B2 (ja) |
KR (1) | KR101136143B1 (ja) |
CN (2) | CN102597334A (ja) |
RU (1) | RU2520472C2 (ja) |
TW (1) | TWI404843B (ja) |
WO (1) | WO2011027992A2 (ja) |
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KR101196445B1 (ko) | 2012-05-03 | 2012-11-01 | 주식회사 크리스텍 | 사파이어 단결정 성장장치 및 이를 이용한 사파이어 단결정 성장방법 |
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CN103074668A (zh) * | 2013-01-11 | 2013-05-01 | 元亮科技有限公司 | 水平温度梯度法生长大尺寸高温晶体的装置及方法 |
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KR101654856B1 (ko) * | 2015-01-22 | 2016-09-06 | 주식회사 사파이어테크놀로지 | 단결정 성장용 히터 및 이를 이용한 단결정 성장장치 및 성장방법. |
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2009
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- 2010-08-26 CN CN2010800499683A patent/CN102597334A/zh active Pending
- 2010-08-26 WO PCT/KR2010/005731 patent/WO2011027992A2/ko active Application Filing
- 2010-08-26 CN CN201710150234.8A patent/CN106978628A/zh active Pending
- 2010-08-26 RU RU2012113230/05A patent/RU2520472C2/ru active
- 2010-08-26 EP EP10813901.5A patent/EP2474651A4/en not_active Withdrawn
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Publication number | Publication date |
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WO2011027992A2 (ko) | 2011-03-10 |
TWI404843B (zh) | 2013-08-11 |
JP2013503810A (ja) | 2013-02-04 |
KR20110025716A (ko) | 2011-03-11 |
EP2474651A2 (en) | 2012-07-11 |
TW201109487A (en) | 2011-03-16 |
RU2520472C2 (ru) | 2014-06-27 |
CN102597334A (zh) | 2012-07-18 |
EP2474651A4 (en) | 2013-07-31 |
WO2011027992A3 (ko) | 2011-07-21 |
CN106978628A (zh) | 2017-07-25 |
KR101136143B1 (ko) | 2012-04-17 |
US9790618B2 (en) | 2017-10-17 |
US20120174857A1 (en) | 2012-07-12 |
RU2012113230A (ru) | 2013-10-20 |
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