KR100451513B1 - 반도체 소자의 콘택홀 형성 방법 - Google Patents
반도체 소자의 콘택홀 형성 방법 Download PDFInfo
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- KR100451513B1 KR100451513B1 KR10-2002-0025030A KR20020025030A KR100451513B1 KR 100451513 B1 KR100451513 B1 KR 100451513B1 KR 20020025030 A KR20020025030 A KR 20020025030A KR 100451513 B1 KR100451513 B1 KR 100451513B1
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- Prior art keywords
- silicon nitride
- forming
- contact hole
- etching
- oxide film
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 67
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 57
- 239000011229 interlayer Substances 0.000 claims description 31
- 238000005530 etching Methods 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 25
- 239000010703 silicon Substances 0.000 claims description 25
- 239000000758 substrate Substances 0.000 claims description 18
- 238000005498 polishing Methods 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 238000001312 dry etching Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims description 9
- 238000001020 plasma etching Methods 0.000 claims description 8
- 229910021332 silicide Inorganic materials 0.000 claims description 7
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 7
- 238000011161 development Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 230000006866 deterioration Effects 0.000 abstract description 6
- 150000004767 nitrides Chemical class 0.000 description 9
- 238000005468 ion implantation Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 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
- H01L21/02—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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
-
- 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
-
- 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
- H01L21/70—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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823475—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type interconnection or wiring or contact manufacturing related aspects
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823481—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type isolation region manufacturing related aspects, e.g. to avoid interaction of isolation region with adjacent structure
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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)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
- 실리콘 기판 위에 패드 산화막과 제 1 실리콘 질화막을 차례로 형성하는 단계;상기 제 1 실리콘 질화막과 상기 패드 산화막 및 상기 실리콘 기판의 일부를 건식각하여 샬로우 트렌치 분리용 홈을 형성하는 단계;상기 홈 내부가 충분히 채워지도록 상기 전체 구조물 위에 산화막을 플라즈마 촉발 화학적 기상 증착(PECVD) 방식으로 증착하는 단계;상기 제 1 실리콘 질화막 상부가 노출 되도록 화학적기계적연마(CMP) 공정으로 상기 산화막을 평탄화하는 단계;상기 홈 내부에 채워진 상기 산화막을 제 1 플라즈마 식각으로 일부 축퇴하는 단계;상기 전체 구조물 위에 제 2 실리콘 질화막을 형성시키되, 상기 산화막을 축퇴시킨 깊이보다 두껍게 형성하는 단계;상기 제 1 실리콘 질화막의 상부가 노출 되도록 상기 제 2 실리콘 질화막을 화학적기계적연마(CMP) 공정으로 평탄화하되, 상기 제 1 실리콘 질화막의 상부도 일부 평탄화되도록 하는 단계;상기 공정 이후, 게이트 및 스페이서가 형성될 부분에 있는 상기 제 1 실리콘 질화막과 상기 패드 산화막을 제 2 플라즈마 식각으로 선택적으로 제거하는 단계;상기 공정 이후, 공지의 방법으로 웰을 형성하고, 게이트 및 스페이서를 형성하고, 소오스/드레인을 형성한 후 실리사이드막을 형성하는 단계;상기 구조물 위에 층간 산화막을 증착시킨 후 화학적기계적연마(CMP) 공정으로 그 상부를 평탄화하는 단계;상기 층간 산화막 위에 감광 물질을 도포 시킨 후, 노광 및 현상 공정을 실시하여 콘택홀 형태를 패터닝하는 단계; 및상기 층간 산화막을 제 3 플라즈마 식각하여 상기 층간 산화막 내부에 콘택홀을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 1 항에 있어서,상기 제 1 실리콘 질화막과 상기 패드 산화막의 건식각 공정시 CxFy, CoHpFq, Ar 등을 일정한 비율로 혼합한 기체를 사용하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 1 항에 있어서,상기 샬로우 트렌치 분리용 홈 형성용 건식각 공정은, 식각가스로서 Cl2, HBr, N2, Ar 등을 혼합한 기체를 사용하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 1 항에 있어서,상기 제 1 플라즈마 식각시 'CxFy+ O2' 기체를 사용하고,상기 제 2 플라즈마 식각시 'CxFy+ O2' 기체를 사용하고,상기 제 3 플라즈마 식각시 'CxFy+ O2' 기체를 주성분으로 하여 활성화시킨 플라즈마로 상기 층간 산화막을 식각하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 4 항에 있어서,상기 'CxFy+ O2' 기체는 C/F 비율이 높은 기체(C4F8, C5F8)를 사용함과 동시에 산소(O2)를 첨가하여, 홈 내부에 채워진 상기 산화막은 비교적 빠른 속도로 식각하고, 남아 있는 상기 제 1 실리콘 질화막은 매우 느린 속도로 식각하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 1 항에 있어서,상기 제 1 플라즈마 식각시, 상기 홈 내부에 채워진 상기 산화막을 축퇴시켜도 상기 제 1 실리콘 질화막 하부의 상기 패드 산화막은 훼손되지 않도록 하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
- 제 1 항에 있어서,상기 층간 산화막을 식각시 C/F 비율이 높은 기체, 예를 들면 C4F8,또는 C5F8기체를 사용하면서 동시에 O2를 첨가시켜 활성화시킨 플라즈마를 이용하여 식각을 진행하는 것을 특징으로 하는 반도체 소자의 콘택홀 형성 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0025030A KR100451513B1 (ko) | 2002-05-07 | 2002-05-07 | 반도체 소자의 콘택홀 형성 방법 |
US10/330,913 US6653194B1 (en) | 2002-05-07 | 2002-12-27 | Method for forming contact hole in semiconductor device |
TW091137747A TWI255526B (en) | 2002-05-07 | 2002-12-27 | Method for forming contact hole in semiconductor device |
CNB031001599A CN1270354C (zh) | 2002-05-07 | 2003-01-03 | 半导体元件的接触孔的形成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0025030A KR100451513B1 (ko) | 2002-05-07 | 2002-05-07 | 반도체 소자의 콘택홀 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030086837A KR20030086837A (ko) | 2003-11-12 |
KR100451513B1 true KR100451513B1 (ko) | 2004-10-06 |
Family
ID=29398472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0025030A KR100451513B1 (ko) | 2002-05-07 | 2002-05-07 | 반도체 소자의 콘택홀 형성 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6653194B1 (ko) |
KR (1) | KR100451513B1 (ko) |
CN (1) | CN1270354C (ko) |
TW (1) | TWI255526B (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100651603B1 (ko) * | 2005-12-13 | 2006-11-30 | 동부일렉트로닉스 주식회사 | 반도체 소자의 제조 방법 |
US7586147B2 (en) * | 2006-04-17 | 2009-09-08 | Taiwan Semiconductor Manufacturing Co. Ltd. | Butted source contact and well strap |
KR100763680B1 (ko) * | 2006-08-23 | 2007-10-04 | 동부일렉트로닉스 주식회사 | 이미지 센서 소자의 콘택 구조 및 그 제조 방법 |
KR100898440B1 (ko) * | 2007-06-27 | 2009-05-21 | 주식회사 동부하이텍 | 플래시 메모리 소자의 제조 방법 |
KR20110120695A (ko) * | 2010-04-29 | 2011-11-04 | 삼성전자주식회사 | 반도체 소자 |
DE102011004922B4 (de) * | 2011-03-01 | 2016-12-15 | Globalfoundries Dresden Module One Llc & Co. Kg | Verfahren zur Herstellung von Transistoren mit Metallgatestapeln mit erhöhter Integrität |
US20120292735A1 (en) * | 2011-05-20 | 2012-11-22 | GLOBALFOUNDRIES Singapore Pte.Ltd. | Corner transistor suppression |
US8692353B2 (en) * | 2011-09-02 | 2014-04-08 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor structure and method |
US8877614B2 (en) | 2011-10-13 | 2014-11-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Spacer for semiconductor structure contact |
CN103165507A (zh) * | 2011-12-09 | 2013-06-19 | 上海华虹Nec电子有限公司 | 防止浅沟槽隔离边缘漏电的方法 |
US8629008B2 (en) * | 2012-01-11 | 2014-01-14 | International Business Machines Corporation | Electrical isolation structures for ultra-thin semiconductor-on-insulator devices |
US8664050B2 (en) * | 2012-03-20 | 2014-03-04 | International Business Machines Corporation | Structure and method to improve ETSOI MOSFETS with back gate |
CN103594417A (zh) * | 2012-08-13 | 2014-02-19 | 中芯国际集成电路制造(上海)有限公司 | 互连结构的制作方法 |
CN104143530B (zh) * | 2013-05-09 | 2017-12-01 | 中芯国际集成电路制造(上海)有限公司 | 晶体管及其制作方法 |
CN107093577A (zh) * | 2017-04-17 | 2017-08-25 | 上海华虹宏力半导体制造有限公司 | 接触孔的制造方法 |
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JPH098135A (ja) * | 1995-06-26 | 1997-01-10 | Toshiba Corp | 半導体装置の製造方法 |
US6204185B1 (en) * | 1999-05-24 | 2001-03-20 | United Microelectronics Corp. | Method for forming self-align stop layer for borderless contact process |
KR100293052B1 (ko) * | 1999-06-08 | 2001-06-15 | 황인길 | 반도체 소자 제조 방법 |
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Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6133105A (en) | 1999-04-27 | 2000-10-17 | United Microelectronics Corp. | Method of manufacturing borderless contact hole including a silicide layer on source/drain and sidewall of trench isolation structure |
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2002
- 2002-05-07 KR KR10-2002-0025030A patent/KR100451513B1/ko active IP Right Grant
- 2002-12-27 US US10/330,913 patent/US6653194B1/en not_active Expired - Lifetime
- 2002-12-27 TW TW091137747A patent/TWI255526B/zh not_active IP Right Cessation
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2003
- 2003-01-03 CN CNB031001599A patent/CN1270354C/zh not_active Expired - Lifetime
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JPH098135A (ja) * | 1995-06-26 | 1997-01-10 | Toshiba Corp | 半導体装置の製造方法 |
KR100325600B1 (ko) * | 1999-05-11 | 2002-02-25 | 황인길 | 반도체 소자의 접촉구 형성 방법 |
US6204185B1 (en) * | 1999-05-24 | 2001-03-20 | United Microelectronics Corp. | Method for forming self-align stop layer for borderless contact process |
KR100293052B1 (ko) * | 1999-06-08 | 2001-06-15 | 황인길 | 반도체 소자 제조 방법 |
US6350661B2 (en) * | 1999-07-12 | 2002-02-26 | Chartered Semiconductor Manufacturing Ltd. | Silicon nitride capped shallow trench isolation method for fabricating sub-micron devices with borderless contacts |
KR20020010795A (ko) * | 2000-07-31 | 2002-02-06 | 박종섭 | 반도체소자의 제조방법 |
Also Published As
Publication number | Publication date |
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TW200306643A (en) | 2003-11-16 |
CN1270354C (zh) | 2006-08-16 |
CN1457087A (zh) | 2003-11-19 |
US20030211730A1 (en) | 2003-11-13 |
US6653194B1 (en) | 2003-11-25 |
TWI255526B (en) | 2006-05-21 |
KR20030086837A (ko) | 2003-11-12 |
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