KR100451499B1 - 반도체소자의소자분리막형성방법 - Google Patents
반도체소자의소자분리막형성방법 Download PDFInfo
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- KR100451499B1 KR100451499B1 KR10-1998-0059154A KR19980059154A KR100451499B1 KR 100451499 B1 KR100451499 B1 KR 100451499B1 KR 19980059154 A KR19980059154 A KR 19980059154A KR 100451499 B1 KR100451499 B1 KR 100451499B1
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- South Korea
- Prior art keywords
- oxide film
- film
- etching
- substrate
- nitride film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004065 semiconductor Substances 0.000 title claims abstract description 20
- 150000004767 nitrides Chemical class 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000005530 etching Methods 0.000 claims abstract description 23
- 238000005498 polishing Methods 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000000059 patterning Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 6
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 5
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
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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
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
- H01L21/0254—Nitrides
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02551—Group 12/16 materials
- H01L21/02554—Oxides
-
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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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)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
Claims (9)
- 반도체 기판 상에 패드 산화막 및 질화막을 순차적으로 형성하는 단계; 상기 질화막 및 패드 산화막을 패터닝하여 상기 기판의 소정부분을 노출시키는 단계; 상기 기판의 노출된 부분을 소정깊이만큼 식각하여 트렌치를 형성하는 단계; 상기 기판 전면에 상기 트렌치를 매립시키는 산화막을 형성하는 단계; 상기 산화막을 소정두께만큼 일부 제 1 전면식각하여 상기 산화막의 표면을 평탄화하는 단계; 상기 질화막이 노출되는 시점까지 상기 1차 식각된 산화막을 제 2 전면식각하는 단계; 및, 상기 질화막 및 패드 산화막을 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법에 있어서,상기 1차 전면식각공정은 퓸드 또는 콜로이드같은 형태의 실리카로 구성된 슬러리를 이용한 화학기계연마로 진행하되, 상기 화학기계연마는 0.5 내지 30wt% 농도의 연마제와 2 내지 13의 pH를 갖는 연마용액을 이용하여 진행하며,상기 제 2 전면식각은 상기 산화막과 질화막의 식각선택비가 2 : 1 내지 500 : 1인 세리아로 구성된 슬러리를 이용하여 진행하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 패드산화막은 10 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 질화막은 저압 화학기상증착방식 및 플라즈마 보조 화학기상증착방식 중 어느 하나로 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항 또는 제 3 항에 있어서, 상기 질화막은 100 내지 3,000Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 트렌치는 2,000 내지 5,000Å의 깊이로 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 산화막은 4,000 내지 10,000Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 제 1 전면식각시 상기 산화막을 1,000 내지 9,000Å의 두께만큼 제거하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 1 항에 있어서, 상기 질화막은 1 내지 13의 pH를 갖는 용액으로 30 내지 300℃의 온도에서 제거하는 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
- 제 8 항에 있어서, 상기 용액은 HCl, H3PO4, H2SO4, NH4OH, HNO3, HF 및 이들 각각의 혼합용액 중 선택되는 하나인 것을 특징으로 하는 반도체 소자의 소자분리막 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1998-0059154A KR100451499B1 (ko) | 1998-12-28 | 1998-12-28 | 반도체소자의소자분리막형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1998-0059154A KR100451499B1 (ko) | 1998-12-28 | 1998-12-28 | 반도체소자의소자분리막형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000042862A KR20000042862A (ko) | 2000-07-15 |
KR100451499B1 true KR100451499B1 (ko) | 2004-12-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-1998-0059154A Expired - Fee Related KR100451499B1 (ko) | 1998-12-28 | 1998-12-28 | 반도체소자의소자분리막형성방법 |
Country Status (1)
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KR (1) | KR100451499B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100839355B1 (ko) * | 2006-11-28 | 2008-06-19 | 삼성전자주식회사 | 기판의 재생 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07221054A (ja) * | 1994-01-31 | 1995-08-18 | Sony Corp | 研磨方法 |
KR970053422A (ko) * | 1995-12-23 | 1997-07-31 | 김주용 | 반도체 소자의 소자분리막 형성방법 |
KR980006087A (ko) * | 1996-06-29 | 1998-03-30 | 김주용 | 반도체 소자의 트랜치 소자분리 산화막 제조방법 |
US5759917A (en) * | 1996-12-30 | 1998-06-02 | Cabot Corporation | Composition for oxide CMP |
KR19980053430A (ko) * | 1996-12-26 | 1998-09-25 | 김영환 | 반도체 소자의 소자분리막 형성 방법 |
-
1998
- 1998-12-28 KR KR10-1998-0059154A patent/KR100451499B1/ko not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07221054A (ja) * | 1994-01-31 | 1995-08-18 | Sony Corp | 研磨方法 |
KR970053422A (ko) * | 1995-12-23 | 1997-07-31 | 김주용 | 반도체 소자의 소자분리막 형성방법 |
KR980006087A (ko) * | 1996-06-29 | 1998-03-30 | 김주용 | 반도체 소자의 트랜치 소자분리 산화막 제조방법 |
KR19980053430A (ko) * | 1996-12-26 | 1998-09-25 | 김영환 | 반도체 소자의 소자분리막 형성 방법 |
US5759917A (en) * | 1996-12-30 | 1998-06-02 | Cabot Corporation | Composition for oxide CMP |
Also Published As
Publication number | Publication date |
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KR20000042862A (ko) | 2000-07-15 |
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