KR100842883B1 - 반도체 소자의 소자분리영역 형성방법 - Google Patents
반도체 소자의 소자분리영역 형성방법 Download PDFInfo
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- KR100842883B1 KR100842883B1 KR1020020027001A KR20020027001A KR100842883B1 KR 100842883 B1 KR100842883 B1 KR 100842883B1 KR 1020020027001 A KR1020020027001 A KR 1020020027001A KR 20020027001 A KR20020027001 A KR 20020027001A KR 100842883 B1 KR100842883 B1 KR 100842883B1
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- South Korea
- Prior art keywords
- annealing
- trench
- forming
- hydrogen
- isolation region
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000004065 semiconductor Substances 0.000 title claims abstract description 51
- 238000002955 isolation Methods 0.000 title claims abstract description 37
- 238000000137 annealing Methods 0.000 claims abstract description 52
- 239000001257 hydrogen Substances 0.000 claims abstract description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 150000004767 nitrides Chemical class 0.000 claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 238000005530 etching Methods 0.000 claims abstract description 13
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N hydrofluoric acid Substances F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000004151 rapid thermal annealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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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
- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
- H01L21/76235—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls trench shape altered by a local oxidation of silicon process step, e.g. trench corner rounding by LOCOS
-
- 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
- H01L21/3065—Plasma etching; Reactive-ion etching
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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 (8)
- 반도체 기판상에 패드 산화막과 패드 질화막을 형성하는 단계;상기 패드 질화막과 패드 산화막 및 기판을 선택적으로 제거하여 트렌치를 형성하는 단계;상기 트렌치에 수소 진공 어닐링(H2 Vaccum Annealing)과 산소 어닐링(O2 Annealing) 공정을 수행하여 상기 트렌치 표면에 산화막을 형성함과 아울러 상기 트렌치 측벽의 상기 반도체 기판 상부 부분을 라운딩(Rounding) 처리하는 단계;상기 트렌치 내면을 식각 처리(Etch Treatment)하는 단계;상기 트렌치를 매립하는 단계; 및상기 패드 질화막을 제거하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제1항에 있어서,상기 수소 진공 어닐링(H2 Vaccum Annealing)은 급속 열처리 방법으로 진행되는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제2항에 있어서,상기 급속 열처리는 10 slm 수소 유량, 900℃ 온도, 100Torr 압력조건에서 2분 동안 진행되는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제1항에 있어서,상기 산소 어닐링(O2 Annealing)은 상기 수소 진공 어닐링(H2 Vaccum Annealing) 후 인시튜(In-Situ)로 진행되는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제4항에 있어서,상기 산소 어닐링(O2 Annealing)은 1~2 slm 산소 유량과 900℃ 온도 조건에서 진행되는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제4항에 있어서,상기 산소 어닐링(O2 Annealing)은 상기 수소 어닐링(H2 Vaccum Annealing) 후 상기 트렌치내의 수소(H2) 성분을 외부 확산(Out Diffusion) 시키거나 또는 상기 트렌치 표면의 산화막내로 파일 업(Pile Up)시키는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제1항에 있어서,상기 식각 처리(Etch Treatment)는 산소(O2)와 사염화탄소(CF4)중 어느 하나 를 공급하여 상기 트렌치내 수소(H2)와 반응하게 하여 수소(H2)를 제거하는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
- 제7항에 있어서,상기 산소(O2)는 400~500sccm 유량으로 공급되고, 상기 사염화탄소(CF4)는 100~200sccm 유량으로 공급되는 것을 특징으로 하는 반도체 소자의 소자분리영역 형성방법.
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KR1020020027001A KR100842883B1 (ko) | 2002-05-16 | 2002-05-16 | 반도체 소자의 소자분리영역 형성방법 |
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KR1020020027001A KR100842883B1 (ko) | 2002-05-16 | 2002-05-16 | 반도체 소자의 소자분리영역 형성방법 |
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Publication Number | Publication Date |
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KR20030089558A KR20030089558A (ko) | 2003-11-22 |
KR100842883B1 true KR100842883B1 (ko) | 2008-07-02 |
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KR1020020027001A KR100842883B1 (ko) | 2002-05-16 | 2002-05-16 | 반도체 소자의 소자분리영역 형성방법 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000044656A (ko) * | 1998-12-30 | 2000-07-15 | 김영환 | 반도체 소자의 소자분리막 형성 방법 |
KR20010003140A (ko) * | 1999-06-21 | 2001-01-15 | 김영환 | 반도체 소자의 트렌치형 소자 분리막 형성방법 |
KR20010008579A (ko) * | 1999-07-02 | 2001-02-05 | 김영환 | 반도체장치의 sti형 소자분리막 형성방법 |
KR20010112738A (ko) * | 2000-06-12 | 2001-12-21 | 윤종용 | 반도체 집적회로의 트렌치 소자분리 방법 |
KR20040050789A (ko) * | 2002-12-09 | 2004-06-17 | 주식회사 하이닉스반도체 | 반도체소자의 소자분리막 형성방법 |
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2002
- 2002-05-16 KR KR1020020027001A patent/KR100842883B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000044656A (ko) * | 1998-12-30 | 2000-07-15 | 김영환 | 반도체 소자의 소자분리막 형성 방법 |
KR20010003140A (ko) * | 1999-06-21 | 2001-01-15 | 김영환 | 반도체 소자의 트렌치형 소자 분리막 형성방법 |
KR20010008579A (ko) * | 1999-07-02 | 2001-02-05 | 김영환 | 반도체장치의 sti형 소자분리막 형성방법 |
KR20010112738A (ko) * | 2000-06-12 | 2001-12-21 | 윤종용 | 반도체 집적회로의 트렌치 소자분리 방법 |
KR20040050789A (ko) * | 2002-12-09 | 2004-06-17 | 주식회사 하이닉스반도체 | 반도체소자의 소자분리막 형성방법 |
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