KR100758296B1 - 트렌치의 형성 방법 - Google Patents
트렌치의 형성 방법 Download PDFInfo
- Publication number
- KR100758296B1 KR100758296B1 KR1020060009369A KR20060009369A KR100758296B1 KR 100758296 B1 KR100758296 B1 KR 100758296B1 KR 1020060009369 A KR1020060009369 A KR 1020060009369A KR 20060009369 A KR20060009369 A KR 20060009369A KR 100758296 B1 KR100758296 B1 KR 100758296B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- semiconductor substrate
- polymer
- perform
- power applied
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 112
- 239000004065 semiconductor Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 229920000642 polymer Polymers 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 238000001312 dry etching Methods 0.000 claims abstract description 9
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000005530 etching Methods 0.000 claims description 23
- 150000004767 nitrides Chemical class 0.000 claims description 21
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000059 patterning Methods 0.000 claims 2
- 239000010408 film Substances 0.000 description 31
- 238000002955 isolation Methods 0.000 description 12
- 229920002120 photoresistant polymer Polymers 0.000 description 11
- 239000011810 insulating material Substances 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000293849 Cordylanthus Species 0.000 description 1
- WZKSXHQDXQKIQJ-UHFFFAOYSA-N F[C](F)F Chemical compound F[C](F)F WZKSXHQDXQKIQJ-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000004528 spin coating 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
-
- 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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- 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
Claims (7)
- 반도체 기판 상에 마스크층을 형성한 후 패터닝하여 상기 반도체 기판을 노출하는 마스크 패턴을 형성하고;산소, 질소, 및 비활성 가스들로 구성된 그룹에서 선택된 어느 하나의 가스 또는 둘 이상의 가스들의 플라즈마를 사용하여 상기 마스크 패턴의 측벽에 형성된 폴리머를 제거하고;상기 노출된 반도체 기판을 식각하여 그 측면이 단일한 기울기를 갖는 트렌치를 형성하는 것을 포함하고,상기 마스크 패턴을 형성하는 것과 상기 트렌치를 형성하는 것은 건식식각 공정으로 수행되며,상기 폴리머를 제거하는 공정을 수행하기 위해 인가되는 바이어스 파워는 상기 건식식각 공정을 수행하기 위해 인가되는 바이어스 파워보다 작은 트렌치의 형성 방법.
- 제 1 항에 있어서,상기 마스크층은 질화막을 포함하는 트렌치의 형성 방법.
- 삭제
- 제 1 항에 있어서,상기 폴리머를 제거하는 공정을 수행하기 위해 인가되는 소오스 파워는 상기 건식식각 공정을 수행하기 위해 인가되는 소오스 파워보다 작은 트렌치의 형성 방법.
- 반도체 기판 상에 마스크층을 형성한 후 패터닝하여 상기 반도체 기판을 노출하는 마스크 패턴을 형성하고;산소, 질소, 및 비활성 가스들로 구성된 그룹에서 선택된 어느 하나의 가스 또는 둘 이상의 가스들의 플라즈마를 사용하여 상기 마스크 패턴의 측벽에 형성된 폴리머를 제거하고;사불화탄소를 포함하는 가스의 플라즈마를 사용하여 상기 노출된 반도체 기판 상에 형성된 자연 산화막을 제거하고;상기 노출된 반도체 기판을 식각하여 그 측면이 단일한 기울기를 갖는 트렌치를 형성하는 것을 포함하는 트렌치의 형성 방법.
- 제 5 항에 있어서,상기 폴리머를 제거하는 공정을 수행하기 위해 인가되는 바이어스 파워는 상기 자연 산화막을 제거하는 공정을 수행하기 위해 인가되는 바이어스 파워보다 작은 트렌치의 형성 방법.
- 제 6 항에 있어서,상기 폴리머를 제거하는 공정을 수행하기 위해 인가되는 소오스 파워는 상기 자연 산화막을 제거하는 공정을 수행하기 위해 인가되는 바이어스 파워보다 작은 트렌치의 형성 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060009369A KR100758296B1 (ko) | 2006-01-31 | 2006-01-31 | 트렌치의 형성 방법 |
US11/624,410 US7795151B2 (en) | 2006-01-31 | 2007-01-18 | Methods of forming a trench having side surfaces including a uniform slope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060009369A KR100758296B1 (ko) | 2006-01-31 | 2006-01-31 | 트렌치의 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070078924A KR20070078924A (ko) | 2007-08-03 |
KR100758296B1 true KR100758296B1 (ko) | 2007-09-12 |
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KR1020060009369A KR100758296B1 (ko) | 2006-01-31 | 2006-01-31 | 트렌치의 형성 방법 |
Country Status (2)
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US (1) | US7795151B2 (ko) |
KR (1) | KR100758296B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100814372B1 (ko) * | 2007-01-24 | 2008-03-18 | 삼성전자주식회사 | 반도체 장치의 제조 방법 |
KR100849190B1 (ko) * | 2007-03-19 | 2008-07-30 | 주식회사 하이닉스반도체 | 반도체 소자의 미세 패턴 형성 방법 |
CN106783583B (zh) * | 2016-11-30 | 2019-06-21 | 上海华力微电子有限公司 | 一种优化低功耗产品漏电流的方法 |
CN109585293B (zh) * | 2017-09-29 | 2021-12-24 | 台湾积体电路制造股份有限公司 | 切割金属工艺中的基脚去除 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010005210A (ko) * | 1999-06-30 | 2001-01-15 | 윤종용 | 얕은 트렌치 소자분리 방법 |
KR20050054363A (ko) * | 2003-12-04 | 2005-06-10 | 매그나칩 반도체 유한회사 | 반도체 소자의 소자분리막 형성방법 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3397275B2 (ja) | 1995-08-22 | 2003-04-14 | ソニー株式会社 | トレンチの形成方法 |
KR100230384B1 (ko) | 1996-11-18 | 1999-11-15 | 윤종용 | 반도체소자의 트렌치 형성방법 |
KR20000008735A (ko) | 1998-07-15 | 2000-02-15 | 윤종용 | 게이트 산화막의 형성페일을 최소화하기 위한트랜치 형성방법 |
US6130166A (en) * | 1999-02-01 | 2000-10-10 | Vlsi Technology, Inc. | Alternative plasma chemistry for enhanced photoresist removal |
US6432832B1 (en) * | 1999-06-30 | 2002-08-13 | Lam Research Corporation | Method of improving the profile angle between narrow and wide features |
US6566270B1 (en) * | 2000-09-15 | 2003-05-20 | Applied Materials Inc. | Integration of silicon etch and chamber cleaning processes |
KR100588646B1 (ko) | 2003-11-25 | 2006-06-12 | 동부일렉트로닉스 주식회사 | 반도체 소자의 소자분리막 형성방법 |
US7157351B2 (en) * | 2004-05-20 | 2007-01-02 | Taiwan Semiconductor Manufacturing Co., Ltd. | Ozone vapor clean method |
-
2006
- 2006-01-31 KR KR1020060009369A patent/KR100758296B1/ko active IP Right Grant
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- 2007-01-18 US US11/624,410 patent/US7795151B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010005210A (ko) * | 1999-06-30 | 2001-01-15 | 윤종용 | 얕은 트렌치 소자분리 방법 |
KR20050054363A (ko) * | 2003-12-04 | 2005-06-10 | 매그나칩 반도체 유한회사 | 반도체 소자의 소자분리막 형성방법 |
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Publication number | Publication date |
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KR20070078924A (ko) | 2007-08-03 |
US7795151B2 (en) | 2010-09-14 |
US20070178663A1 (en) | 2007-08-02 |
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