KR100925136B1 - 다공성 Si 엔지니어링에 의한 패터닝된실리콘-온-인슐레이터(SOI)/실리콘-온-낫싱 (SON)복합 구조물의 형성 - Google Patents
다공성 Si 엔지니어링에 의한 패터닝된실리콘-온-인슐레이터(SOI)/실리콘-온-낫싱 (SON)복합 구조물의 형성 Download PDFInfo
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- KR100925136B1 KR100925136B1 KR1020067016521A KR20067016521A KR100925136B1 KR 100925136 B1 KR100925136 B1 KR 100925136B1 KR 1020067016521 A KR1020067016521 A KR 1020067016521A KR 20067016521 A KR20067016521 A KR 20067016521A KR 100925136 B1 KR100925136 B1 KR 100925136B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
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Abstract
Description
Claims (38)
- 반도체 기판;서로 옆에 배치되고 상기 반도체 기판 상에 배치되는, 패터닝된 매립 도전 영역과 보이드 평면(void plane)을 갖는 하나 이상의 층; 및상기 패터닝된 매립 도전 영역과 보이드 평면을 갖는 상기 하나 이상의 층의 상부에 배치되며, 미리결정된 두께를 갖는 Si 오버층(over-layer)을 포함하고,상기 매립 도전 영역은 주입된 내화(refractory) 금속 이온을 포함하고,상기 Si 오버층은 단결정 구조물을 갖는 것을 특징으로 하는, 반도체 복합 구조물.
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- 제1항에 있어서, 상기 Si 오버층은 2 nm 내지 1 ㎛의 두께를 갖는 것인, 반도체 복합 구조물.
- 제1항에 있어서, 상기 주입된 내화 금속 이온은, Si와 합금될 때 1300℃보다 높은 공융 온도를 갖는 것인, 반도체 복합 구조물.
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- 제1항에 있어서, 상기 Si 오버층 상에 배치된 표면 산화물을 더 포함하는 것인, 반도체 복합 구조물.
- 제1항에 있어서, 상기 주입된 내화 금속 이온은 Mo, Ta, 및 W로 구성된 그룹으로부터 선택되는 것인, 반도체 복합 구조물.
- 반도체 복합 구조물을 형성하는 방법으로서,(a) 반도체 웨이퍼의 표면 영역에 다공성 Si의 층을 형성하는 단계;(b) 상기 다공성 Si의 층 상에 에피-Si(epi-Si) 층을 형성하는 단계로서, 상기 에피-Si 층과 다공성 Si의 층 사이에는 인터페이스가 존재하는 것인, 상기 에피-Si 층을 형성하는 단계;(c) 상기 인터페이스 또는 그 부근에 주입 영역을 형성하기 위해 상기 반도체 웨이퍼의 미리결정된 영역에 이온을 선택적으로 주입하는 단계; 및(d) 다공성 Si의 주변층과의 반응에 의해 주입 영역을 매립 절연 영역으로 변형시키고 기공 유착(pore coalescene)에 의해 비주입 다공성 Si를 매립 보이드 평면으로 변형시키는 온도와, 산소-포함 환경에서 상기 웨이퍼를 어닐링하는 단계를 포함하는 반도체 복합 구조물 형성 방법.
- 제14항에 있어서, 상기 다공성 Si의 층 내의 개구 표면 기공을 실질적으로 제거하기 위해 상기 단계 (a) 및 (b) 사이에 수소 어닐링 단계를 수행하는 단계를 더 포함하는 반도체 복합 구조물 형성 방법.
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- 제14항에 있어서, 단계 (d)를 수행하기 전에 단계 (a) 내지 (c)를 임의의 횟수 반복하는 단계를 더 포함하는 반도체 복합 구조물 형성 방법.
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- 매립 SON(Silicon-On-Nothing) 구조물을 포함하는 반도체 복합 구조물을 형성하는 방법으로서,(i) 반도체 웨이퍼 상에 패터닝된 포토레지스트를 형성하는 단계로서, 상기 패터닝된 포토레지스트는 상기 반도체 웨이퍼의 부분을 노출하는 하나 이상의 개구를 갖는 것인, 상기 패터닝된 포토레지스트를 형성하는 단계;(ii) 상기 반도체 웨이퍼의 상기 노출된 부분의 표면 영역에 다공성 Si를 형성하는 단계;(iii) 상기 패터닝된 포토레지스트를 제거하는 단계;(iv) 상기 다공성 Si를 포함하는 웨이퍼 상에 에피 Si를 형성하는 단계; 및(v) 상기 다공성 Si를 매립 보이드 평면으로 변형시키는 상승된 온도에서 상기 웨이퍼를 어닐링하는 단계를 포함하는 반도체 복합 구조물 형성 방법.
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JP2003332540A (ja) * | 2002-05-08 | 2003-11-21 | Nec Corp | 半導体基板の製造方法、半導体装置の製造方法、および半導体基板、半導体装置 |
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JP2003332540A (ja) * | 2002-05-08 | 2003-11-21 | Nec Corp | 半導体基板の製造方法、半導体装置の製造方法、および半導体基板、半導体装置 |
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