KR20020012198A - 바나듐이 우세하지 않은 반절연성 실리콘 카바이드 - Google Patents
바나듐이 우세하지 않은 반절연성 실리콘 카바이드 Download PDFInfo
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- KR20020012198A KR20020012198A KR1020017013950A KR20017013950A KR20020012198A KR 20020012198 A KR20020012198 A KR 20020012198A KR 1020017013950 A KR1020017013950 A KR 1020017013950A KR 20017013950 A KR20017013950 A KR 20017013950A KR 20020012198 A KR20020012198 A KR 20020012198A
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- silicon carbide
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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
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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
- 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
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
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- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Junction Field-Effect Transistors (AREA)
- Inorganic Insulating Materials (AREA)
- Ceramic Products (AREA)
Abstract
Description
Claims (48)
- 실온에서의 저항률(resistivity)이 적어도 5000Ω-㎝이고, 깊은 준위 트래핑 원소들(deep level trapping elements)의 농도가 결정의 전기적 특성에 영향을 주는 양 이하인 반절연성 실리콘 카바이드 벌크 단결정(semi-insulating bulk single crystal).
- 제1항에 있어서,상기 실리콘 카바이드의 폴리타입(polytype)이 3C, 4H, 6H 및 15R 폴리타입으로 이루어진 군으로부터 선택되는 실리콘 카바이드 단결정.
- 제1항에 있어서,질소 원자의 농도가 1 x 1017㎝-3미만인 실리콘 카바이드 단결정.
- 제1항에 있어서,질소 원자의 농도가 5 x 1016㎝-3이하인 실리콘 카바이드 단결정.
- 제1항에 있어서,상기 깊은 준위 트래핑 원소의 농도가 SIMS법(secondary ion massspectroscopy; 2차 이온 질량 분석법)으로 검출할 수 있는 레벨 미만인 실리콘 카바이드 단결정.
- 제1항에 있어서,바나듐의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정.
- 제1항에 있어서,바나듐의 농도가 1 x 1016㎝-3미만인 실리콘 카바이드 단결정.
- 제1항에 있어서,바나듐의 농도가 1 x 1014㎝-3미만인 실리콘 카바이드 단결정.
- 제1항에 있어서,실온에서 적어도 10,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제1항에 있어서,실온에서 적어도 50,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제1항에 따른 벌크 단결정을 포함하는 기판을 가진 트랜지스터.
- 제11항에 있어서,MESFET(metal-semiconductor field-effect transistors; 금속 반도체 전계효과 트랜지스터), 금속 절연막 전계효과 트랜지스터(metal-insulator FET), 및 HEMT(high electron mobility transistor; 고전자이동도 트랜지스터)로 이루어진 군으로부터 선택되는 트랜지스터.
- 원료 분말로부터 승화된 종(species)이 시드 결정 표면에 응축하는 온도 미만으로 실리콘 카바이드 시드(seed) 결정을 가열 유지하면서, 깊은 준위 트래핑 원소의 양이 검출 가능한 레벨 미만인 실리콘 카바이드 원료 분말을 승화시키도록 상기 원료 분말을 가열하는 단계, 및상기 원료 분말 및 상기 시드 결정을 승화 성장이 진행되는 동안 각각의 온도로 유지하면서, 원하는 양의 단결정 벌크가 상기 시드 결정 표면에서 성장할 때까지 상기 실리콘 카바이드 원료 분말을 계속 가열하는 단계를 포함하고,상기 각각의 온도는, 한편으로 시드 결정 상의 벌크 성장부에 혼입하게 될 질소의 양을 현저히 저감하고, 상기 시드 결정 상의 벌크 성장부 내의 점결함(point defect)의 수를 증가시켜, 얻어지는 실리콘 카바이드 벌크 단결정을 반절연성으로 만들 정도의 높은 온도인반절연성 실리콘 카바이드 벌크 단결정의 제조 방법.
- 제13항에 있어서,상기 원료 분말 내의 바나듐의 양이 검출 가능한 수준 미만인 제조 방법.
- 제13항에 있어서,상기 원료 분말 내의 바나듐의 양이 1 x 1016㎝-3미만인 제조 방법.
- 제13항에 있어서,상기 원료 분말 내의 바나듐의 양이 1 x 1014㎝-3미만인 제조 방법.
- 제13항에 있어서,상기 원료 분말 내의 전이 금속의 농도가 1 x 1014㎝-3미만인 제조 방법.
- 제1 전도체형의 수가 제2 전도체형의 수보다 많은 얕은 도너 도펀트(shallow doner dopant) 및 얕은 억셉터 도펀트(shallow acceptor dopant), 그리고지배적인 상기 제1 전도체형 도펀트를 보충하도록 작용하는 실리콘 카바이드 결정 내의 그 수가 상기 제1 전도체형 도펀트가 상기 제2 전도체형 도펀트를 초과하는 만큼의 수치상 차이보다 많은 진성 점결함(intrinsic point defect)을 포함하고,전이 금속 및 중금속으로 이루어진 군에서 선택되는 원소의 농도는 상기 실리콘 카바이드 단결정의 전기적 특성에 영향을 주는 농도보다 낮으며,실온에서 적어도 5000Ω-㎝의 저항률을 가지는반절연성 실리콘 카바이드 단결정.
- 제18항에 있어서,상기 제1형 도펀트가 도너이고, 상기 제2형 도펀트가 억셉터이며, 상기 진성 점결함이 억셉터로서 작용하는 반절연성 실리콘 카바이드 결정.
- 제18항에 있어서,상기 제1형 도펀트가 억셉터이고, 상기 제2형 도펀트가 도너이며, 상기 진성 점결함이 도너로서 작용하는 반절연성 실리콘 카바이드 결정.
- 제18항에 있어서,상기 실리콘 카바이드의 폴리타입이 3C, 4H, 6H 및 15R 폴리타입으로 이루어진 군으로부터 선택되는 실리콘 카바이드 단결정.
- 제18항에 있어서,질소의 농도가 5 x 1016㎝-3이하인 실리콘 카바이드 단결정.
- 제18항에 있어서,바나듐의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정.
- 제18항에 있어서,바나듐의 농도가 1 x 1014㎝-3미만인 실리콘 카바이드 단결정.
- 제18항에 있어서,실온에서 적어도 10,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제18항에 있어서,실온에서 적어도 50,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제18항에 따른 벌크 단결정을 포함하는 기판을 가진 트랜지스터.
- 제27항에 있어서,MESFET, 금속 절연막 전계효과 트랜지스터, 및 HEMT로 이루어진 군으로부터선택되는 트랜지스터.
- 질소 원자의 농도가 5 x 1016㎝-3이하이고, 점결함의 농도가 질소 농도보다는 높지만 단결정의 열전도도 및 다른 바람직한 물성을 실질적으로 저하시키기 시작하는 농도보다는 낮은 반절연성 실리콘 카바이드 단결정.
- 제29항에 있어서,실온에서의 저항률이 적어도 5000Ω-㎝이고, 깊은 준위 트래핑 원소들의 농도가 결정의 전기적 특성에 영향을 주는 양 이하인 반절연성 실리콘 카바이드 벌크 단결정.
- 제29항에 있어서,상기 실리콘 카바이드의 폴리타입이 3C, 4H, 6H 및 15R 폴리타입으로 이루어진 군으로부터 선택되는 실리콘 카바이드 단결정.
- 제29항에 있어서,상기 깊은 준위 트래핑 원소들의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정.
- 제29항에 있어서,바나듐의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정.
- 제29항에 있어서,바나듐의 농도가 1 x 1016㎝-3미만인 실리콘 카바이드 단결정.
- 제29항에 있어서,바나듐의 농도가 1 x 1014㎝-3미만인 실리콘 카바이드 단결정.
- 제29항에 있어서,실온에서 적어도 10,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제29항에 있어서,실온에서 적어도 50,000Ω-㎝의 저항률을 가지는 실리콘 카바이드 단결정.
- 제29항에 있어서,점결함의 농도가 5 x 1017㎝-3을 초과하지 않는 반절연성 실리콘 카바이드 단결정.
- 제29항에 따른 벌크 단결정을 포함하는 기판을 가진 트랜지스터.
- 제39항에 있어서,MESFET, 금속 절연막 전계효과 트랜지스터, 및 HEMT로 이루어진 군으로부터 선택되는 트랜지스터.
- 결정 내 보충형 점결함의 수가, 2개의 전도체형 도펀트 원자 중 결정 내 우세한 전도체형 도펀트 원자의 순량(net amount)보다 많아질 때까지 중성자, 전자 및 감마선으로 이루어진 군으로부터 선택되는 소스(source)로 실리콘 카바이드의 단결정을 조사(照射)하는 단계를 포함하고,상기 실리콘 카바이드 단결정 내의 깊은 준위 트래핑 원소의 농도가 상기 실리콘 카바이드 단결정의 전기적 물성에 영향을 주는 양 미만인고저항률 실리콘 카바이드 단결정 기판의 제조 방법.
- 제41항에 있어서,상기 실리콘 카바이드의 폴리타입이 3C, 4H, 6H 및 15R 폴리타입으로 이루어진 군으로부터 선택되는 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,질소 원자의 농도가 1 x 1017㎝-3미만인 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,질소 원자의 농도가 5 x 1016㎝-3이하인 제1항에 따른 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,상기 깊은 준위 트래핑 원소들의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,바나듐의 농도가 SIMS법으로 검출할 수 있는 수준 미만인 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,바나듐의 농도가 1 x 1016㎝-3미만인 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
- 제41항에 있어서,바나듐의 농도가 1 x 1014㎝-3미만인 실리콘 카바이드 단결정을 조사하는 단계를 포함하는 제조 방법.
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US09/313,802 | 1999-05-18 | ||
US09/313,802 US6218680B1 (en) | 1999-05-18 | 1999-05-18 | Semi-insulating silicon carbide without vanadium domination |
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KR20020012198A true KR20020012198A (ko) | 2002-02-15 |
KR100767382B1 KR100767382B1 (ko) | 2007-10-17 |
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US (3) | US6218680B1 (ko) |
EP (1) | EP1181401B1 (ko) |
JP (1) | JP4860825B2 (ko) |
KR (1) | KR100767382B1 (ko) |
CN (1) | CN1222642C (ko) |
AT (1) | ATE340280T1 (ko) |
AU (1) | AU7050600A (ko) |
CA (1) | CA2376564C (ko) |
DE (1) | DE60030851T2 (ko) |
ES (1) | ES2272317T3 (ko) |
TW (1) | TW473908B (ko) |
WO (1) | WO2000071787A2 (ko) |
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US6218680B1 (en) | 1999-05-18 | 2001-04-17 | Cree, Inc. | Semi-insulating silicon carbide without vanadium domination |
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US6906350B2 (en) | 2001-10-24 | 2005-06-14 | Cree, Inc. | Delta doped silicon carbide metal-semiconductor field effect transistors having a gate disposed in a double recess structure |
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US6396080B2 (en) * | 1999-05-18 | 2002-05-28 | Cree, Inc | Semi-insulating silicon carbide without vanadium domination |
US6218680B1 (en) | 1999-05-18 | 2001-04-17 | Cree, Inc. | Semi-insulating silicon carbide without vanadium domination |
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1999
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100775983B1 (ko) * | 2005-09-29 | 2007-11-15 | 네오세미테크 주식회사 | 반절연 탄화규소 단결정 성장방법 |
Also Published As
Publication number | Publication date |
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KR100767382B1 (ko) | 2007-10-17 |
CA2376564C (en) | 2009-11-03 |
CN1222642C (zh) | 2005-10-12 |
CN1351680A (zh) | 2002-05-29 |
WO2000071787A3 (en) | 2001-08-09 |
TW473908B (en) | 2002-01-21 |
ES2272317T3 (es) | 2007-05-01 |
US6403982B2 (en) | 2002-06-11 |
US20010019132A1 (en) | 2001-09-06 |
DE60030851T2 (de) | 2007-05-16 |
US6218680B1 (en) | 2001-04-17 |
WO2000071787A2 (en) | 2000-11-30 |
CA2376564A1 (en) | 2000-11-30 |
US6639247B2 (en) | 2003-10-28 |
JP4860825B2 (ja) | 2012-01-25 |
EP1181401A2 (en) | 2002-02-27 |
JP2003500321A (ja) | 2003-01-07 |
AU7050600A (en) | 2000-12-12 |
ATE340280T1 (de) | 2006-10-15 |
US20010017374A1 (en) | 2001-08-30 |
EP1181401B1 (en) | 2006-09-20 |
DE60030851D1 (de) | 2006-11-02 |
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