KR100473731B1 - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
- Publication number
- KR100473731B1 KR100473731B1 KR10-2002-0062419A KR20020062419A KR100473731B1 KR 100473731 B1 KR100473731 B1 KR 100473731B1 KR 20020062419 A KR20020062419 A KR 20020062419A KR 100473731 B1 KR100473731 B1 KR 100473731B1
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- South Korea
- Prior art keywords
- oxide film
- pad
- film
- trench
- pad nitride
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 39
- 150000004767 nitrides Chemical class 0.000 claims description 45
- 238000005530 etching Methods 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 28
- 238000002955 isolation Methods 0.000 claims description 13
- 238000001039 wet etching Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000001312 dry etching Methods 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 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 6
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- 229920005591 polysilicon Polymers 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 229910007258 Si2H4 Inorganic materials 0.000 description 1
- 229910003818 SiH2Cl2 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- H01L21/02—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
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
Landscapes
- 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 (6)
- (a) 활성 영역과 필드 영역이 정의된 반도체 기판 상부에 패드 산화막, 패드 질화막 및 스크린 산화막을 형성하는 단계;(b) 상기 필드 영역에 형성된 상기 스크린 산화막과 상기 패드 질화막을 제거하는 단계;(c) 습식 식각을 실시하여 상기 활성 영역과 상기 필드 영역의 경계면에 노출된 상기 패드 질화막을 측방향으로 소정 폭 만큼 제거하는 단계;(d) 상기 스크린 산화막을 식각 마스크로 하는 건식 식각을 실시하여 상기 필드 영역에 형성된 패드 산화막과 반도체 기판의 일부를 제거하여 트렌치를 형성하는 단계;(e) 상기 스크린 산화막 및 측방향으로 상기 패드 질화막의 소정 폭만큼 제거되면서 노출된 상기 패드 산화막을 제거하는 단계;(f) 산화 공정을 실시하여 상기 노출된 반도체 기판에 라운딩 산화막을 형성하여 상기 트렌치 모서리를 라운딩하게 형성하는 단계;(g) 상기 트렌치 내부를 충분히 매립할 수 있을 정도의 산화막을 형성하고 열처리 공정을 실시하는 단계; 및(h) 상기 산화막을 평탄화한 후 상기 활성 영역의 상기 패드 질화막 및 상기 패드 산화막을 제거하여 소자 분리막을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 패드 산화막은 상기 패드 질화막과 상기 반도체 기판 사이의 스트레스 완화 및 상기 습식식각시 상기 반도체 기판의 보호를 위한 배리어로 작용할 수 있는 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 2 항에 있어서,상기 두께는 30 내지 75Å인 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 스크린 산화막은 상기 트렌치 형성을 위한 상기 건식 식각에서 식각 마스크로 작용할 수 있는 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서, 상기 (c) 단계는,습식식각을 실시하여 활성영역 방향으로 200 내지 500Å의 폭만큼 제거하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 5 항에 있어서,상기 습식식각은 상기 패드 질화막이 상기 패드 산화막 및 상기 스크린 산화막에 대하여 높은 식각 선택비를 갖는 100 내지 130℃ 온도의 인산(H3PO4)용액에서 5분 내지 12분 30초간 실시하는 것을 특징으로 하는 반도체 소자의 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0062419A KR100473731B1 (ko) | 2002-10-14 | 2002-10-14 | 반도체 소자의 제조 방법 |
US10/310,867 US6723617B1 (en) | 2002-10-14 | 2002-12-06 | Method of manufacturing a semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0062419A KR100473731B1 (ko) | 2002-10-14 | 2002-10-14 | 반도체 소자의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040033361A KR20040033361A (ko) | 2004-04-28 |
KR100473731B1 true KR100473731B1 (ko) | 2005-03-10 |
Family
ID=32064941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0062419A KR100473731B1 (ko) | 2002-10-14 | 2002-10-14 | 반도체 소자의 제조 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6723617B1 (ko) |
KR (1) | KR100473731B1 (ko) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100546852B1 (ko) * | 2002-12-28 | 2006-01-25 | 동부아남반도체 주식회사 | 반도체 소자의 제조 방법 |
US7091104B2 (en) * | 2003-01-23 | 2006-08-15 | Silterra Malaysia Sdn. Bhd. | Shallow trench isolation |
KR100843244B1 (ko) | 2007-04-19 | 2008-07-02 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
US7812375B2 (en) * | 2003-05-28 | 2010-10-12 | Samsung Electronics Co., Ltd. | Non-volatile memory device and method of fabricating the same |
US6974755B2 (en) * | 2003-08-15 | 2005-12-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Isolation structure with nitrogen-containing liner and methods of manufacture |
US6905943B2 (en) * | 2003-11-06 | 2005-06-14 | Texas Instruments Incorporated | Forming a trench to define one or more isolation regions in a semiconductor structure |
US7081397B2 (en) * | 2004-08-30 | 2006-07-25 | International Business Machines Corporation | Trench sidewall passivation for lateral RIE in a selective silicon-on-insulator process flow |
KR101051180B1 (ko) * | 2004-12-30 | 2011-07-21 | 주식회사 하이닉스반도체 | 반도체 소자의 형성 방법 |
US20060231908A1 (en) * | 2005-04-13 | 2006-10-19 | Xerox Corporation | Multilayer gate dielectric |
US7179717B2 (en) * | 2005-05-25 | 2007-02-20 | Micron Technology, Inc. | Methods of forming integrated circuit devices |
KR100707803B1 (ko) * | 2005-10-28 | 2007-04-17 | 주식회사 하이닉스반도체 | 리세스 게이트를 갖는 반도체 소자의 제조방법 |
KR100700284B1 (ko) * | 2005-12-28 | 2007-03-26 | 동부일렉트로닉스 주식회사 | 반도체소자의 트랜치 소자분리막 형성방법 |
US7601607B2 (en) * | 2006-05-15 | 2009-10-13 | Chartered Semiconductor Manufacturing, Ltd. | Protruded contact and insertion of inter-layer-dielectric material to match damascene hardmask to improve undercut for low-k interconnects |
KR100869845B1 (ko) * | 2006-12-04 | 2008-11-21 | 주식회사 하이닉스반도체 | 산화막 패턴의 형성 방법 및 이를 이용한 반도체 소자의패터닝 방법 |
US8183160B2 (en) * | 2007-10-09 | 2012-05-22 | Freescale Semiconductor, Inc. | Method for manufacturing a semiconductor device and semiconductor device obtainable with such a method |
KR100955935B1 (ko) * | 2007-12-21 | 2010-05-03 | 주식회사 하이닉스반도체 | 반도체 소자의 소자분리막 형성방법 |
CN102148182B (zh) * | 2010-02-10 | 2014-11-05 | 上海华虹宏力半导体制造有限公司 | 浅沟槽隔离结构形成方法 |
US8785291B2 (en) | 2011-10-20 | 2014-07-22 | International Business Machines Corporation | Post-gate shallow trench isolation structure formation |
US8466496B2 (en) | 2011-11-17 | 2013-06-18 | International Business Machines Corporation | Selective partial gate stack for improved device isolation |
KR102560695B1 (ko) * | 2018-09-05 | 2023-07-27 | 삼성전자주식회사 | 집적회로 장치 |
CN114078739A (zh) * | 2020-08-19 | 2022-02-22 | 和舰芯片制造(苏州)股份有限公司 | 一种改善深沟道隔离槽填充效果的方法 |
CN114023648B (zh) * | 2021-10-18 | 2023-08-22 | 上海华虹宏力半导体制造有限公司 | 沟槽栅半导体器件的制造方法 |
Citations (5)
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KR19980027696A (ko) * | 1996-10-17 | 1998-07-15 | 김광호 | 트랜치를 이용한 반도체 메모리 장치의 소자분리방법 |
KR19980085035A (ko) * | 1997-05-27 | 1998-12-05 | 윤종용 | 라운딩된 프로파일을 갖는 트렌치 형성방법 및 이를 이용한 반도체장치의 소자분리방법 |
KR19990084786A (ko) * | 1998-05-11 | 1999-12-06 | 윤종용 | 트렌치 소자분리 방법 |
KR20000003564A (ko) * | 1998-06-29 | 2000-01-15 | 김영환 | 반도체소자의 소자분리막 제조방법 |
JP2001044273A (ja) * | 1999-07-27 | 2001-02-16 | Nec Corp | 半導体装置の製造方法 |
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US6080637A (en) * | 1998-12-07 | 2000-06-27 | Taiwan Semiconductor Manufacturing Company | Shallow trench isolation technology to eliminate a kink effect |
-
2002
- 2002-10-14 KR KR10-2002-0062419A patent/KR100473731B1/ko active IP Right Grant
- 2002-12-06 US US10/310,867 patent/US6723617B1/en not_active Expired - Lifetime
Patent Citations (5)
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KR19980027696A (ko) * | 1996-10-17 | 1998-07-15 | 김광호 | 트랜치를 이용한 반도체 메모리 장치의 소자분리방법 |
KR19980085035A (ko) * | 1997-05-27 | 1998-12-05 | 윤종용 | 라운딩된 프로파일을 갖는 트렌치 형성방법 및 이를 이용한 반도체장치의 소자분리방법 |
KR19990084786A (ko) * | 1998-05-11 | 1999-12-06 | 윤종용 | 트렌치 소자분리 방법 |
KR20000003564A (ko) * | 1998-06-29 | 2000-01-15 | 김영환 | 반도체소자의 소자분리막 제조방법 |
JP2001044273A (ja) * | 1999-07-27 | 2001-02-16 | Nec Corp | 半導体装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20040033361A (ko) | 2004-04-28 |
US20040072451A1 (en) | 2004-04-15 |
US6723617B1 (en) | 2004-04-20 |
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