KR100845946B1 - SiC 단결정 성장방법 - Google Patents
SiC 단결정 성장방법 Download PDFInfo
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- KR100845946B1 KR100845946B1 KR1020070002698A KR20070002698A KR100845946B1 KR 100845946 B1 KR100845946 B1 KR 100845946B1 KR 1020070002698 A KR1020070002698 A KR 1020070002698A KR 20070002698 A KR20070002698 A KR 20070002698A KR 100845946 B1 KR100845946 B1 KR 100845946B1
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- sic
- growth
- single crystal
- sic single
- hydrogen
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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
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
- C30B23/02—Epitaxial-layer growth
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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
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
- C30B23/002—Controlling or regulating
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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
Abstract
Description
Claims (11)
- 종자정과 소스가 장입된 도가니를 성장로에 장착하는 단계;상기 성장로를 진공 상태로 유지하는 단계;수소 함유 가스의 주입 및 중단을 반복하여 SiC 단결정을 성장시키는 단계; 및상기 성장로를 냉각하는 단계를 포함하는 SiC 단결정 성장방법.
- 제 1 항에 있어서, 상기 수소 함유 가스는 수소 또는 수소와 아르곤을 혼합한 가스인 SiC 단결정 성장방법.
- 제 1 항에 있어서, 상기 수소 함유 가스는 초기 결정성장시 종자정 표면을 에칭하기 위하여 도입하는 SiC 단결정 성장방법.
- 제 1 항에 있어서, 상기 수소 함유 가스는 종자정 표면 에칭 후 1 시간마다 10분 동안 도입하는 SiC 단결정 성장방법.
- 제 1 항 또는 제 2 항에 있어서, 상기 단결정 성장시 아르곤 가스와 수소 가스의 비율이 20:1이 되는 량을 도입하는 SiC 단결정 성장방법.
- 제 1 항에 있어서, 상기 종자정은 표면 상에 SiC 에피택셜 층이 형성된 SiC 단결정 성장방법.
- 표면상에 SiC 에피택셜 층을 구비한 종자정을 마련하는 단계;상기 종자정과 소스를 도가니에 장입한 후 상기 도가니를 성장로에 장착하는 단계;상기 성장로를 진공 상태로 유지하는 단계;수소 함유 가스의 주입 및 중단을 반복하여 SiC 단결정을 성장시키는 단계; 및상기 성장로를 냉각하는 단계를 포함하는 SiC 단결정 성장방법.
- 제 7 항에 있어서, 상기 SiC 에피택셜층은 2000℃의 온도에서 성장되는 SiC 단결정 성장방법.
- 제 1 항 또는 제 7 항에 있어서, 상기 SiC 단결정의 성장온도는 2000℃ 내지 2500℃이고, 성장압력은 30mbar내지 70mbar인 SiC 단결정 성장방법.
- 제 1 항 또는 제 7 항에 있어서, 상기 SiC 단결정의 축방향 열 기울기는 10 내지 20℃/cm 인 SiC 단결정 성장방법.
- 제 1 항 또는 제 7 항에 있어서, 상기 종자정은 6H-SiC인 SiC 단결정 성장방법.
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KR1020070002698A KR100845946B1 (ko) | 2007-01-10 | 2007-01-10 | SiC 단결정 성장방법 |
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KR1020070002698A KR100845946B1 (ko) | 2007-01-10 | 2007-01-10 | SiC 단결정 성장방법 |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101043280B1 (ko) | 2008-09-17 | 2011-06-22 | 동의대학교 산학협력단 | 종자정 처리 방법 및 단결정 성장 방법 |
WO2012177086A2 (en) * | 2011-06-22 | 2012-12-27 | Lg Innotek Co., Ltd. | Method of fabricating wafer |
WO2014123634A1 (en) * | 2013-02-05 | 2014-08-14 | Dow Corning Corporation | Method to reduce dislocations in sic crystal grown by sublimation (pvt) |
US8860040B2 (en) | 2012-09-11 | 2014-10-14 | Dow Corning Corporation | High voltage power semiconductor devices on SiC |
US8940614B2 (en) | 2013-03-15 | 2015-01-27 | Dow Corning Corporation | SiC substrate with SiC epitaxial film |
US9018639B2 (en) | 2012-10-26 | 2015-04-28 | Dow Corning Corporation | Flat SiC semiconductor substrate |
US9279192B2 (en) | 2014-07-29 | 2016-03-08 | Dow Corning Corporation | Method for manufacturing SiC wafer fit for integration with power device manufacturing technology |
US9738991B2 (en) | 2013-02-05 | 2017-08-22 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a supporting shelf which permits thermal expansion |
US9797064B2 (en) | 2013-02-05 | 2017-10-24 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a support shelf which permits thermal expansion |
KR20190074152A (ko) | 2017-12-19 | 2019-06-27 | 한국세라믹기술원 | 단결정 성장을 위하여 용액에 침잠되는 돌설부를 구비하는 도가니 |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101043280B1 (ko) | 2008-09-17 | 2011-06-22 | 동의대학교 산학협력단 | 종자정 처리 방법 및 단결정 성장 방법 |
WO2012177086A2 (en) * | 2011-06-22 | 2012-12-27 | Lg Innotek Co., Ltd. | Method of fabricating wafer |
WO2012177086A3 (en) * | 2011-06-22 | 2013-06-13 | Lg Innotek Co., Ltd. | Method of fabricating wafer |
US9745667B2 (en) | 2011-06-22 | 2017-08-29 | Lg Innotek Co., Ltd. | Method of fabricating wafer |
US8860040B2 (en) | 2012-09-11 | 2014-10-14 | Dow Corning Corporation | High voltage power semiconductor devices on SiC |
US9337277B2 (en) | 2012-09-11 | 2016-05-10 | Dow Corning Corporation | High voltage power semiconductor device on SiC |
US9018639B2 (en) | 2012-10-26 | 2015-04-28 | Dow Corning Corporation | Flat SiC semiconductor substrate |
US9165779B2 (en) | 2012-10-26 | 2015-10-20 | Dow Corning Corporation | Flat SiC semiconductor substrate |
US9017804B2 (en) | 2013-02-05 | 2015-04-28 | Dow Corning Corporation | Method to reduce dislocations in SiC crystal growth |
US9738991B2 (en) | 2013-02-05 | 2017-08-22 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a supporting shelf which permits thermal expansion |
WO2014123634A1 (en) * | 2013-02-05 | 2014-08-14 | Dow Corning Corporation | Method to reduce dislocations in sic crystal grown by sublimation (pvt) |
US9797064B2 (en) | 2013-02-05 | 2017-10-24 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a support shelf which permits thermal expansion |
US8940614B2 (en) | 2013-03-15 | 2015-01-27 | Dow Corning Corporation | SiC substrate with SiC epitaxial film |
US9279192B2 (en) | 2014-07-29 | 2016-03-08 | Dow Corning Corporation | Method for manufacturing SiC wafer fit for integration with power device manufacturing technology |
US10002760B2 (en) | 2014-07-29 | 2018-06-19 | Dow Silicones Corporation | Method for manufacturing SiC wafer fit for integration with power device manufacturing technology |
KR20190074152A (ko) | 2017-12-19 | 2019-06-27 | 한국세라믹기술원 | 단결정 성장을 위하여 용액에 침잠되는 돌설부를 구비하는 도가니 |
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