KR20070077439A - 개선된 전기적 특성들을 갖는 복합물 기판의 제조방법 - Google Patents
개선된 전기적 특성들을 갖는 복합물 기판의 제조방법 Download PDFInfo
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- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
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- H01L21/76256—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques using silicon etch back techniques, e.g. BESOI, ELTRAN
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Abstract
Description
Claims (13)
- "지지 기판"으로 명명된 제1 기판(1)과 "활성층"으로 명명된 반도체 재료(21)의 층 사이에 개재된 적어도 하나의 얇은 절연층(32)을 포함하는 개선된 전기적 특성들을 갖는 복합물 기판(4)의 제조방법에 있어서:"소스 기판"으로 명명된 제2 기판(2) 상에 절연층(32)을 형성 또는 증착하고, 상기 지지 기판(1) 상에 절연층(31)을 선택적으로 형성 또는 증착하는 단계;상기 절연층(32) 및 상기 지지 기판(1) 상에 선택적으로 형성된 상기 절연층(31)을 회복 열처리하는 단계;-상기 소스 기판(2)의 상기 절연층(32)의 전면(front face, 320) 및 상기 지지 기판(1)의 전면(10) 또는 상기 지지 기판(1)의 상기 절연층(31)의 전면(10)으로부터 선택되어, 서로 본딩되는 두 면들 중에 적어도 하나를 플라즈마 활성처리하는 단계;상기 지지 기판(1) 과 상기 소스 기판(2)의 사이에 상기 절연층(32)이 위치하도록 상기 지지 기판(1)을 상기 소스 기판(2)과 분자결합에 의하여 함께 결합하는 단계; 및상기 활성층(21)을 포함하는 재료의 두께만을 보유하는 상기 복합물 기판(4)을 제조하기 위하여, 상기 소스 기판(2)의 "후측(back)"으로 명명된 부분(23)을 리프팅-오프(lifting off)하는 단계를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제1항에 있어서,상기 회복 열처리단계는 중성 가스(neutral gas) 및 수소 분위기에서 400℃ 내지 600℃의 온도범위로 약 30분 내지 두 시간 동안 어닐링을 수행하는 형성가스 어닐링(forming gas annealing, FGA)형 처리를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제1항 또는 제2항에 있어서,상기 회복 열처리단계는 중성 가스 및 선택적으로 산소가 포함되는 분위기에서 900℃ 보다 높은 온도로 약 30분 내지 한 시간 동안의 열처리를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제2항 또는 제3항에 있어서,상기 회복 열처리단계는 약 수 초 내지 수 분 동안 수행되는 속성 열 어닐링(rapid thermal annealing, RTA)형 열처리를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 상술한 항들 중 어느 한 항에 있어서, 상기 플라즈마 활성처리 단계는,처리하고자 하는 상기 기판을 활성 챔버에 장입하는 단계; 및상기 기판을 상기 활성 챔버 내에서 약 5초 내지 60초간 플라즈마에 노출하 는 단계를 포함하고,상기 플라즈마는 산소(O2), 질소(N2), 아르곤(Ar) 및 헬륨(He) 또는 상기 가스들의 혼합 가스로부터 선택된 순수한 가스(pure gas)로부터 형성되고, 상기 가스는 10 sccm 내지 1000 sccm의 범위의 유량속도로 상기 챔버에 장입되며, 상기 챔버 내에 형성된 압력은 10 mTorr 내지 200 mTorr 이고, 상기 플라즈마는 100 W 내지 3000 W의 범위의 RF(radiofrequency) 전력을 인가하여 시작되고 유지되는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 상술한 항들 중 어느 한 항에 있어서,상기 절연층(31, 32)은 산화물을 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 절연층(31, 32)은 고유전율 유전체 재료를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제7항에 있어서,상기 고유전율 유전체 재료는 하프늄 산화물(HfO2), 이트륨 산화물(Y2O3), 스트로튬 티타늄 산화물(SrTiO3), 알루미나(AI2O3), 지르코늄 산화물(ZrO2), 탄탈륨 산 화물(Ta2O5), 티타늄 산화물(TiO2), 이들의 질화물들 및 이들의 실리사이드들(silicides)으로 이루어지는 군에서 선택된 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 상술한 항들 중 어느 한 항에 있어서,상기 소스 기판(2)의 상기 후측 부분(23)은 그라인딩(grinding) 및/또는 폴리싱(polishing)에 의하여 리프팅-오프(lifting-off)되는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제1항 내지 제8항 중 어느 한 항에 있어서,상기 플라즈마 활성처리 단계 이전에 상기 소스 기판(2) 내에 약한 구역(22)을 형성하는 단계; 및상기 소스 기판(2)의 상기 후측 부분(23)을 상기 약한 구역(22)을 따라서 분리하는 리프팅 오프단계를 더 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 제10항에 있어서,상기 약한 구역(22)은 원자 종 주입(atomic species implantation)을 이용하여 상기 소스 기판(2) 내에 형성되는 것을 특징으로 하는 복합물 기판(4)의 제조방 법.
- 상술한 항들 중 어느 한 항에 있어서,상기 활성층(21)은 실리콘, 게르마늄 및 스트레인드(strained) 실리콘에서 선택된 재료를 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
- 상술한 항들 중 어느 한 항에 있어서,상기 소스 기판(2) 또는 지지 기판(1) 중의 하나의 전부 또는 부분을 도핑하는 단계를 더 포함하는 것을 특징으로 하는 복합물 기판(4)의 제조방법.
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FR0600595A FR2896619B1 (fr) | 2006-01-23 | 2006-01-23 | Procede de fabrication d'un substrat composite a proprietes electriques ameliorees |
FRFR0600595 | 2006-01-23 |
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CN (1) | CN100446182C (ko) |
FR (1) | FR2896619B1 (ko) |
SG (1) | SG134270A1 (ko) |
TW (1) | TWI334629B (ko) |
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FR2920589B1 (fr) * | 2007-09-04 | 2010-12-03 | Soitec Silicon On Insulator | "procede d'obtention d'un substrat hybride comprenant au moins une couche d'un materiau nitrure" |
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FR2926671B1 (fr) * | 2008-01-17 | 2010-04-02 | Soitec Silicon On Insulator | Procede de traitement de defauts lors de collage de plaques |
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CN102983167B (zh) * | 2008-03-13 | 2015-06-17 | Soitec公司 | 半导体结构 |
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JP5548395B2 (ja) * | 2008-06-25 | 2014-07-16 | 株式会社半導体エネルギー研究所 | Soi基板の作製方法 |
KR101629193B1 (ko) * | 2008-06-26 | 2016-06-10 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Soi 기판의 제작 방법 |
JP5663150B2 (ja) * | 2008-07-22 | 2015-02-04 | 株式会社半導体エネルギー研究所 | Soi基板の作製方法 |
TWI484622B (zh) * | 2009-09-08 | 2015-05-11 | Soitec Silicon On Insulator | 用以製造基材的方法 |
JP5917036B2 (ja) | 2010-08-05 | 2016-05-11 | 株式会社半導体エネルギー研究所 | Soi基板の作製方法 |
WO2012111616A1 (ja) | 2011-02-15 | 2012-08-23 | 住友電気工業株式会社 | 保護膜付複合基板、および半導体デバイスの製造方法 |
JP5853389B2 (ja) * | 2011-03-28 | 2016-02-09 | ソニー株式会社 | 半導体装置及び半導体装置の製造方法。 |
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JP2013110161A (ja) * | 2011-11-17 | 2013-06-06 | National Institute Of Advanced Industrial & Technology | 素子形成用基板及びその製造方法 |
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JP2007201430A (ja) | 2007-08-09 |
KR100878060B1 (ko) | 2009-01-14 |
CN100446182C (zh) | 2008-12-24 |
TW200737403A (en) | 2007-10-01 |
EP1811560A1 (fr) | 2007-07-25 |
FR2896619A1 (fr) | 2007-07-27 |
US7449395B2 (en) | 2008-11-11 |
FR2896619B1 (fr) | 2008-05-23 |
US20070173033A1 (en) | 2007-07-26 |
CN101009220A (zh) | 2007-08-01 |
JP4722823B2 (ja) | 2011-07-13 |
TWI334629B (en) | 2010-12-11 |
SG134270A1 (en) | 2007-08-29 |
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