KR100921409B1 - 프리스탠딩 (알루미늄, 갈륨, 인듐)질화물 및 이를제조하기 위한 분리방법 - Google Patents
프리스탠딩 (알루미늄, 갈륨, 인듐)질화물 및 이를제조하기 위한 분리방법 Download PDFInfo
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- 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
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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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- Recrystallisation Techniques (AREA)
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- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims (188)
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- 다음의 단계를 포함하는 프리스탠딩 (Al, Ga, In)N 물질(article)의 제조방법:희생주형과 (Al, Ga, In)N 물질(material) 사이에 계면을 함유하는 복합체 희생주형/(Al, Ga, In)N 물질을 형성하기 위하여, (Al, Ga, In)N물질에 에피택셜하게 사용가능한(compatible) 희생주형 상에 결정질 (Al, Ga, In)N 물질을 성장온도에서 증착하는 단계; 및상기 (Al, Ga, In)N 물질로부터 상기 희생주형을 분리하고 프리스탠딩 (Al, Ga, In)N 물질을 수득하기 위하여, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계;이 때, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는 이하의 공정 중 하나 이상을 포함한다:(a) 계면을 따라서 주형으로부터 결정질 (Al, Ga, In)N 물질를 부분적으로 분리하고, 상기 희생주형/(Al, Ga, In)N 물질을 미분리된 계면의 물질이 부서질때까지(fracture) 성장온도 이하로 냉각시킨 후, 상기 (Al, Ga, In)N 물질로부터 상기 희생주형을 완전히 분리하는 공정,(b) 계면에 음향 에너지를 조사시키는 공정,(c) 광자, 이온, 및 미립자 빔으로 구성된 군에서 선택된 조사매체를 계면에 조사시키는 공정, 및(d) 전도성 계면과 러더퍼듐 결합(rf coupling)하는 공정.
- 제149항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는계면을 따라서 주형으로부터 결정질 (Al, Ga, In)N 물질를 부분적으로 분리하고, 상기 희생주형/(Al, Ga, In)N 물질을 미분리된 계면의 물질이 부서질때까지(fracture) 성장온도 이하로 냉각시킨 후, 상기 (Al, Ga, In)N 물질로부터 상기 희생주형을 완전히 분리하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제149항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는, 계면에 음향 에너지를 조사시키는 공정을 포함하는 것을 특징으로 하는 방법.
- 제149항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는, 광자, 이온, 및 미립자 빔으로 구성된 군에서 선택된 조사매체를 계면에 조사시키는 공정을 포함하는 것을 특징으로 하는 방법.
- 제149항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는, 전도성 계면과 러더퍼듐 결합(rf coupling)하는 공정을 포함하는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 단결정(Al, Ga, In)N 재료를 주형상에 증착하는 단계는 하기와 같이 구성된 군에서 선택된 하나의 공정을 포함하는 것을 특징으로 하는 방법:HVPE(hybrid vapor phase epitaxy);MOVPE(metaloragnic vapor phase epitaxy);CVD(chemical vapor deposition); 및MBE(molecular beam epitaxy).
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는 상기 성장온도의 500℃ 이내에서 수행되는 것을 특징으로 하는 방법.
- 제150항에 있어서, 상기 부분적 분리 단계는 355nm전후의 파장에서 Nd:YAG 레이저로부터 상기 계면에 레이저 에너지를 조사하는 것을 포함하는 방법.
- 제150항에 있어서, 상기 부분적 분리 단계는 계면에 레이저 에너지를 조사하는 것을 포함하고, 상기 레이저 에너지는 상기 (Al, Ga, In)N 및 상기 희생주형 재료 중 하나의 밴드갭보다는 크고, 나머지 재료의 밴드갭보다는 작은 광자 에너지를 가지는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 희생주형은 그 뒷면에 무광택 마무리(matte finish)를 한 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질은 상기 단결정(Al, Ga, In)N 재료를 상기 주형상에 증착하는 단계 동안, 그 후면을 붕규산염 유리, SiO2 및 Si3N4로 구성된 군에서 선택된 하나의 물질로 밀봉하는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 (Al, Ga, In)N 재료로부터 희생주형을 분리하고 프리스탠딩 (Al, Ga, In)N 물질을 수득하기 위하여, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는 열분해된 질소 또는 HCl이 도입된 공정환경에서 수행되는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계의 초기에, 상기 희생주형 상의 상기 (Al, Ga, In)N 재료는 50㎛ ~ 1000㎛ 범위의 두께를 갖는 것을 특징으로 하는 방법.
- 제150항에 있어서, 상기 (Al, Ga, In)N 물질로부터 희생주형을 분리하고 프리스탠딩 (Al, Ga, In)N 물질을 수득하기 위하여, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면을 변형시키는 단계는 상기 (Al, Ga, In)N 물질로부터 상기 희생주형의 부분적 분리를 포함하되,이 때, 상기 부분적 분리된 부분은 계면에서 희생주형 총 면적의 50% 이상 100% 이하인 것을 특징으로 하는 방법.
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- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 계면은, 상기 프리스탠딩 (Al, Ga, In)N 물질이 주변 온도로 냉각되기 전에, 상기 (Al, Ga, In)N 재료로부터 상기 희생주형을 분리하고 프리스탠딩 (Al, Ga, In)N 물질을 수득하기 위하여 변형되는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상승시킨 온도에서 분리하는 동안, 암모니아 또는 다른 N-함유 종으로 상기 복합체 희생주형/(Al, Ga, In)N 물질의 전면부 재료를 보호하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 프리스탠딩 (Al, Ga, In)N 물질은 1 ~ 1000㎛의 두께를 가지는 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 프리스탠딩 (Al, Ga, In)N 물질을 두께 100 ~ 1000㎛의 웨이퍼로 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제150항에 있어서, 상기 희생주형은 상기 복합체 희생주형/(Al, Ga, In)N 물질의 후면(backside)을 구성하고, 상기 부분적 분리 공정은 계면상에서 상기 후면 주형을 통해 레이저 에너지를 조사하는 것을 포함하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질의 후면부 증착(backside deposition)은 다음과 같이 구성된 군에서 선택된 하나의 단계에 의해 적어도 부분적으로 억제되는 것을 특징으로 하는 방법:증착단계 동안 커버 플레이트의 사용; 녹힌(molten) 유리로 상기 희생주형을 밀폐하는 단계; 상기 증착단계 동안 진공을 사용하여 복합체 희생주형/(Al, Ga, In)N 물질의 위치를 고정하여 (Al, Ga, In)N 재료가 노출되지 않도록 하는 단계; 상기 증착단계 동안 (Al, Ga, In)N 재료가 노출되지 않도록 물리적으로 복합체 희생주형/(Al, Ga, In)N 물질을 고정하여 위치시키는 단계; 및 후면증착을 방지하는 코팅을 희생주형 상에 적용하는 단계.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 복합체 희생주형/(Al, Ga, In)N 물질은 상기 희생주형과 상기 (Al, Ga, In)N 재료 사이에 적어도 하나의 삽입층(inetrlayer)을 함유하는 것을 특징으로 하는 방법.
- 제170항에 있어서, 상기 삽입층은 도판트로 도핑된 것을 특징으로 하는 방법.
- 제149항 내지 제153항 중 어느 한 항에 있어서, 상기 방법은 프리 스탠딩 (Al, Ga, In)N 물질 위에 부가적인 (Al, Ga, In)N 물질을 성장시키는 공정을 추가로 포함하는 것을 특징으로 하는 방법.
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US09/947,253 | 2001-09-05 | ||
US09/947,253 US6958093B2 (en) | 1994-01-27 | 2001-09-05 | Free-standing (Al, Ga, In)N and parting method for forming same |
PCT/US2002/025412 WO2003020497A1 (en) | 2001-09-05 | 2002-08-12 | Free-standing (al, ga, in)n and parting method for forming same |
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KR1020047003318A KR100921409B1 (ko) | 2001-09-05 | 2002-08-12 | 프리스탠딩 (알루미늄, 갈륨, 인듐)질화물 및 이를제조하기 위한 분리방법 |
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KR (2) | KR100979456B1 (ko) |
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CN101353813A (zh) | 2009-01-28 |
CN1551824A (zh) | 2004-12-01 |
EP2248931A3 (en) | 2011-10-12 |
CN102383193B (zh) | 2014-11-26 |
EP2248931A2 (en) | 2010-11-10 |
EP2287368A3 (en) | 2013-10-09 |
JP2008273825A (ja) | 2008-11-13 |
TW593797B (en) | 2004-06-21 |
KR20090082515A (ko) | 2009-07-30 |
EP2287368B1 (en) | 2018-04-18 |
JP5580803B2 (ja) | 2014-08-27 |
EP2248931B1 (en) | 2015-02-25 |
JP2005502193A (ja) | 2005-01-20 |
KR20040045431A (ko) | 2004-06-01 |
US20020068201A1 (en) | 2002-06-06 |
EP1423259A4 (en) | 2007-06-27 |
CN101353813B (zh) | 2012-06-27 |
EP1423259B1 (en) | 2010-08-04 |
JP4401168B2 (ja) | 2010-01-20 |
WO2003020497A1 (en) | 2003-03-13 |
US6958093B2 (en) | 2005-10-25 |
KR100979456B1 (ko) | 2010-09-02 |
JP2012051792A (ja) | 2012-03-15 |
EP1423259A1 (en) | 2004-06-02 |
MY130719A (en) | 2007-07-31 |
CN100420569C (zh) | 2008-09-24 |
JP4958833B2 (ja) | 2012-06-20 |
CN102383193A (zh) | 2012-03-21 |
EP2287368A2 (en) | 2011-02-23 |
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