KR100403350B1 - 반도체소자의 무경계 콘택홀 형성방법 - Google Patents
반도체소자의 무경계 콘택홀 형성방법 Download PDFInfo
- Publication number
- KR100403350B1 KR100403350B1 KR10-2001-0079817A KR20010079817A KR100403350B1 KR 100403350 B1 KR100403350 B1 KR 100403350B1 KR 20010079817 A KR20010079817 A KR 20010079817A KR 100403350 B1 KR100403350 B1 KR 100403350B1
- Authority
- KR
- South Korea
- Prior art keywords
- forming
- contact hole
- substrate
- silicon nitride
- isolation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000004065 semiconductor Substances 0.000 title claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 36
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000011229 interlayer Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 21
- 238000005530 etching Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 17
- 238000001312 dry etching Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 abstract description 11
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 229910021332 silicide Inorganic materials 0.000 description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001039 wet etching Methods 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
-
- 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
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (3)
- 소자의 활성영역과 분리영역이 정의된 기판을 제공하는 단계와,상기 기판의 분리영역에 트렌치 및 상기 트렌치를 채우는 소자분리막을 각각 형성하는 단계와,상기 소자분리막을 일정 두께만큼 축퇴시키는 단계와,상기 기판 상에 상기 축퇴된 소자분리막을 덮는 실리콘 질화막을 형성하는 단계와,상기 축퇴된 두께만큼 상기 트렌치를 덮도록 실리콘 질화막을 식각하는 단계와,상기 결과물 상에 게이트 및 소오스/드레인을 포함한 트랜지스터를 형성하는 단계와,상기 트랜지스터를 포함한 기판 상에 층간절연막을 형성하는 단계와,상기 층간절연막을 선택 식각하여 상기 분리영역의 일부분과 상기 활성영역의 일부분을 동시에 노출시키는 무경계 콘택홀을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체소자의 무경계 콘택홀 형성방법.
- 제 1항에 있어서, 상기 실리콘 질화막은 CXFY(CXFY는 CF4, C2F6, C4F8또는 C5F8등의 가스 또는 이러한 가스들의 조합)와 O2의 혼합가스를 활성화시킨 플라즈마를이용하여 건식 식각하는 것을 특징으로 하는 반도체소자의 무경계 콘택홀 형성방법.
- 소자의 활성영역과 분리영역이 정의된 기판을 제공하는 단계와,상기 기판의 분리영역에 트렌치 및 상기 트렌치를 채우는 소자분리막을 각각 형성하는 단계와,상기 결과물 상에 게이트 및 소오스/드레인을 포함한 트랜지스터를 형성하는 단계와,상기 트랜지스터를 포함한 기판 상에 실리콘 질화막 및 층간절연막을 차례로 형성하는 단계와,상기 층간절연막 상에 상기 분리영역의 일부분과 상기 활성영역의 일부분을 동시에 노출시키는 무경계 콘택홀을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체소자의 무경계 콘택홀 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0079817A KR100403350B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체소자의 무경계 콘택홀 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0079817A KR100403350B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체소자의 무경계 콘택홀 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030049575A KR20030049575A (ko) | 2003-06-25 |
KR100403350B1 true KR100403350B1 (ko) | 2003-10-30 |
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Application Number | Title | Priority Date | Filing Date |
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KR10-2001-0079817A KR100403350B1 (ko) | 2001-12-15 | 2001-12-15 | 반도체소자의 무경계 콘택홀 형성방법 |
Country Status (1)
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KR (1) | KR100403350B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100650835B1 (ko) * | 2004-10-29 | 2006-11-27 | 에스티마이크로일렉트로닉스 엔.브이. | 반도체 소자의 소자분리막 형성방법 |
US8536019B2 (en) * | 2011-05-17 | 2013-09-17 | GlobalFoundries, Inc. | Semiconductor devices having encapsulated isolation regions and related fabrication methods |
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2001
- 2001-12-15 KR KR10-2001-0079817A patent/KR100403350B1/ko active IP Right Grant
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Publication number | Publication date |
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KR20030049575A (ko) | 2003-06-25 |
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