KR101050454B1 - 반도체 소자의 소자 분리막 및 그 형성방법 - Google Patents
반도체 소자의 소자 분리막 및 그 형성방법 Download PDFInfo
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- KR101050454B1 KR101050454B1 KR1020070066132A KR20070066132A KR101050454B1 KR 101050454 B1 KR101050454 B1 KR 101050454B1 KR 1020070066132 A KR1020070066132 A KR 1020070066132A KR 20070066132 A KR20070066132 A KR 20070066132A KR 101050454 B1 KR101050454 B1 KR 101050454B1
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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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- 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
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0411—Manufacture or treatment of FETs having insulated gates [IGFET] of FETs having floating gates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/68—Floating-gate IGFETs
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- Microelectronics & Electronic Packaging (AREA)
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- Semiconductor Memories (AREA)
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Abstract
Description
Claims (11)
- 트렌치가 형성된 기판;상기 트렌치 표면을 따라 라이너 형태로 형성된 제1 절연막;상기 제1 절연막 상에 형성되어 상기 트렌치를 일부 매립하는 제2 절연막;상기 제1 및 제2 절연막을 포함한 구조물 표면을 따라 라이너 형태로 형성되고, 도전막으로 이루어진 보호막; 및상기 보호막 상에 형성되어 나머지 상기 트렌치를 매립하는 제3 절연막을 포함하는 반도체 소자의 소자 분리막.
- 청구항 2은(는) 설정등록료 납부시 포기되었습니다.제 1 항에 있어서,상기 보호막은 상기 제3 절연막과 식각 선택비를 갖는 물질로 형성된 반도체 소자의 소자 분리막.
- 청구항 3은(는) 설정등록료 납부시 포기되었습니다.제 1 항에 있어서,상기 보호막은 상기 제2 절연막과 식각 선택비를 갖는 물질로 형성된 반도체 소자의 소자 분리막.
- 청구항 4은(는) 설정등록료 납부시 포기되었습니다.제 1 항에 있어서,상기 제2 절연막은 PSZ(polisilazane)막으로 형성되고, 상기 제1 및 제3 절연막은 HDP(High Density Plasma)막으로 형성된 반도체 소자의 소자 분리막.
- 청구항 5은(는) 설정등록료 납부시 포기되었습니다.제 1 항에 있어서,상기 트렌치 내측벽에 형성된 제1 절연막의 두께보다 상기 트렌치 저부에 형성된 제1 절연막의 두께가 더 두꺼운 반도체 소자의 소자 분리막.
- 청구항 6은(는) 설정등록료 납부시 포기되었습니다.제 1 항에 있어서,상기 보호막은 다결정실리콘막, 전이 금속, 희토류 금속 또는 이들이 혼합된 합금막 중 선택된 어느 하나의 도전막으로 형성된 반도체 소자의 소자 분리막.
- 기판 상에 터널링 절연막 및 플로팅 게이트용 도전막을 형성하는 단계;상기 플로팅 게이트용 도전막, 상기 터널링 절연막 및 상기 기판을 일부 식각하여 트렌치를 형성하는 단계;상기 트렌치 표면을 따라 라이너 형태로 제1 절연막을 형성하는 단계;상기 트렌치를 일부 매립하도록 상기 제1 절연막 상에 제2 절연막을 형성하는 단계;상기 제1 및 제2 절연막을 포함한 구조물 표면을 따라 라이너 형태를 갖고, 도전막으로 이루어진 보호막을 형성하는 단계; 및상기 보호막 상에 나머지 상기 트렌치를 매립하도록 제3 절연막을 형성하는 단계를 포함하는 반도체 소자의 소자 분리막 형성방법.
- 청구항 8은(는) 설정등록료 납부시 포기되었습니다.제 7 항에 있어서,상기 보호막은 상기 제2 및 제3 절연막과 식각 선택비를 갖는 물질로 형성하는 반도체 소자의 소자 분리막 형성방법.
- 청구항 9은(는) 설정등록료 납부시 포기되었습니다.제 7 항에 있어서,상기 제2 절연막은 PSZ(polisilazane)막으로 형성하고, 상기 제1 및 제3 절연막은 HDP(High Density Plasma)막으로 형성하는 반도체 소자의 소자 분리막 형성방법.
- 청구항 10은(는) 설정등록료 납부시 포기되었습니다.제 7 항에 있어서,상기 제1 절연막을 형성하는 단계는,상기 트렌치 내측벽에 형성되는 제1 절연막의 두께보다 상기 트렌치 저부에 형성되는 제1 절연막의 두께를 더 두껍게 형성하는 반도체 소자의 소자 분리막 형성방법.
- 청구항 11은(는) 설정등록료 납부시 포기되었습니다.제 7 항에 있어서,상기 보호막은 다결정실리콘막, 전이 금속, 희토류 금속 또는 이들이 혼합된 합금막 중 선택된 어느 하나의 도전막으로 형성하는 반도체 소자의 소자 분리막 형성방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070066132A KR101050454B1 (ko) | 2007-07-02 | 2007-07-02 | 반도체 소자의 소자 분리막 및 그 형성방법 |
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| KR1020070066132A KR101050454B1 (ko) | 2007-07-02 | 2007-07-02 | 반도체 소자의 소자 분리막 및 그 형성방법 |
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| Publication Number | Publication Date |
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| KR20090002624A KR20090002624A (ko) | 2009-01-09 |
| KR101050454B1 true KR101050454B1 (ko) | 2011-07-19 |
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| US8741778B2 (en) | 2010-12-14 | 2014-06-03 | Applied Materials, Inc. | Uniform dry etch in two stages |
| US8765574B2 (en) | 2012-11-09 | 2014-07-01 | Applied Materials, Inc. | Dry etch process |
| US8771539B2 (en) | 2011-02-22 | 2014-07-08 | Applied Materials, Inc. | Remotely-excited fluorine and water vapor etch |
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| US8951429B1 (en) | 2013-10-29 | 2015-02-10 | Applied Materials, Inc. | Tungsten oxide processing |
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| US9064815B2 (en) | 2011-03-14 | 2015-06-23 | Applied Materials, Inc. | Methods for etch of metal and metal-oxide films |
| US9064816B2 (en) | 2012-11-30 | 2015-06-23 | Applied Materials, Inc. | Dry-etch for selective oxidation removal |
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