KR100973262B1 - 반도체소자의 소자분리막 형성방법 - Google Patents
반도체소자의 소자분리막 형성방법 Download PDFInfo
- Publication number
- KR100973262B1 KR100973262B1 KR1020030051798A KR20030051798A KR100973262B1 KR 100973262 B1 KR100973262 B1 KR 100973262B1 KR 1020030051798 A KR1020030051798 A KR 1020030051798A KR 20030051798 A KR20030051798 A KR 20030051798A KR 100973262 B1 KR100973262 B1 KR 100973262B1
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- KR
- South Korea
- Prior art keywords
- layer
- film
- trench
- forming
- oxide film
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 239000004065 semiconductor Substances 0.000 title abstract description 14
- 150000004767 nitrides Chemical class 0.000 claims abstract description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 9
- 229920005591 polysilicon Polymers 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000000059 patterning Methods 0.000 claims 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Element Separation (AREA)
Abstract
Description
이 하, 본 발명에 따른 반도체소자의 소자분리막 형성방법에 대해 첨부된 도면을 참조하여 상세히 설명한다.
Claims (4)
- 실리콘 기판상에 패드산화막과 패드질화막을 차례로 형성하는 단계;상기 패드질화막상에 식각정지막을 형성하는 단계;상기 식각정지막, 패드질화막 및 패드산화막을 패터닝하고, 패터닝된 상기 식각정지막, 패드질화막 및 패드산화막을 마스크로 상기 실리콘 기판을 식각하여 트렌치를 형성하는 단계;상기 트렌치 표면에 측벽 산화막을 형성하는 단계;상기 트렌치를 포함한 전체 구조상에 HDP산화막을 형성하여 트렌치를 매립하는 단계; 및상기 식각정지막을 에치 스탑퍼로 하여 상기 HDP산화막을 리버스 에치백하는 단계를 포함하여 구성하는 것을 특징으로 하는 반도체소자의 소자분리막 형성방법.
- 제 1항에 있어서, 상기 식각정지막으로는 폴리실리콘층을 사용하는 것을 특징으로 하는 반도체소자의 소자분리막 형성방법.
- 제 2항에 있어서, 상기 폴리실리콘층은 300Å ~ 500Å두께로 증착하는 것을 특징으로 하는 반도체소자의 소자분리막 형성방법.
- 제 1항에 있어서, 상기 리버스 에치백시에 에천트로 CHF4 및 CF4를 혼합한 용액을 사용하되, 상기 CHF4 대 CF4의 혼합 비율은 5:5 ~ 6:4인 것을 특징으로 하는 반도체소자의 소자분리막 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030051798A KR100973262B1 (ko) | 2003-07-26 | 2003-07-26 | 반도체소자의 소자분리막 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030051798A KR100973262B1 (ko) | 2003-07-26 | 2003-07-26 | 반도체소자의 소자분리막 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050012660A KR20050012660A (ko) | 2005-02-02 |
KR100973262B1 true KR100973262B1 (ko) | 2010-07-30 |
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Family Applications (1)
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KR1020030051798A KR100973262B1 (ko) | 2003-07-26 | 2003-07-26 | 반도체소자의 소자분리막 형성방법 |
Country Status (1)
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KR (1) | KR100973262B1 (ko) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030000490A (ko) * | 2001-06-25 | 2003-01-06 | 주식회사 하이닉스반도체 | 반도체소자의 제조방법 |
KR20030050702A (ko) * | 2001-12-19 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 격리막 형성 방법 |
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2003
- 2003-07-26 KR KR1020030051798A patent/KR100973262B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030000490A (ko) * | 2001-06-25 | 2003-01-06 | 주식회사 하이닉스반도체 | 반도체소자의 제조방법 |
KR20030050702A (ko) * | 2001-12-19 | 2003-06-25 | 주식회사 하이닉스반도체 | 반도체 소자의 격리막 형성 방법 |
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KR20050012660A (ko) | 2005-02-02 |
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