KR100911984B1 - 반도체 소자의 소자 분리막 형성 방법 - Google Patents
반도체 소자의 소자 분리막 형성 방법 Download PDFInfo
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- KR100911984B1 KR100911984B1 KR1020020084285A KR20020084285A KR100911984B1 KR 100911984 B1 KR100911984 B1 KR 100911984B1 KR 1020020084285 A KR1020020084285 A KR 1020020084285A KR 20020084285 A KR20020084285 A KR 20020084285A KR 100911984 B1 KR100911984 B1 KR 100911984B1
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- Prior art keywords
- film
- hard mask
- amorphous silicon
- etching
- oxide film
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000004065 semiconductor Substances 0.000 title claims abstract description 25
- 238000002955 isolation Methods 0.000 title claims abstract description 22
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 32
- 238000005530 etching Methods 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 150000004767 nitrides Chemical class 0.000 claims description 6
- 238000005468 ion implantation Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000001039 wet etching Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001020 plasma etching Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 84
- 239000007789 gas Substances 0.000 description 7
- 229920002120 photoresistant polymer Polymers 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 3
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 2
- 210000003323 beak Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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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
- H01L21/70—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
- H01L21/02—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
- H01L21/3081—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their composition, e.g. multilayer masks, 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
- H01L21/02—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
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32105—Oxidation of silicon-containing layers
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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 (4)
- 반도체 기판 상에 패드 산화막, 비정질 실리콘막 및 하드 마스크막을 순차적으로 형성하는 단계;상기 하드 마스크막, 상기 비정질 실리콘막, 상기 패드 산화막 및 상기 반도체 기판의 일부를 식각하여 트렌치를 형성하는 단계;상기 트렌치 상부의 상기 비정질 실리콘막의 일부가 노출되도록 상기 하드 마스크막의 측면의 일부를 식각하는 단계;O2 플라즈마 산화 공정을 통해 상기 노출된 비정질 실리콘막을 산화시켜 실리콘 산화막을 형성하는 단계;상기 트렌치를 포함한 전체 구조상에 필드 산화막을 증착한 다음, 상기 하드 마스크막을 정지층으로 하는 평탄화 공정을 실시하는 단계; 및상기 하드 마스크막과 상기 하드 마스크막 하부의 상기 비정질 실리콘막과 상기 패드 산화막을 순차적으로 식각하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 소자 분리막 형성 방법.
- 제 1 항에 있어서,상기 O2 플라즈마 산화 공정은 50 내지 200℃의 온도 범위를 갖는 플라즈마 에슁 방법과 O2 이온주입 방법을 이용하여 상기 하드 마스크막 측면 식각을 통해 노출된 상기 비정질 실리콘막을 산화하는 것을 특징으로 하는 반도체 소자의 소자 분리막 형성 방법.
- 제 1 항에 있어서,상기 하드 마스크막의 측면의 일부를 식각하는 단계는, 인산 수용액을 이용한 습식 식각을 실시하여 상기 하드마스크막의 측면을 10 내지 100㎚ 식각하는 것을 특징으로 하는 반도체 소자의 소자 분리막 형성 방법.
- 제 1 항에 있어서,상기 패드 산화막은 50 내지 200Å 두께로 형성하고, 상기 비정질 실리콘막은 1000 내지 2000Å 두께로 형성하며, 상기 하드 마스크막은 질화막을 이용하여 1000 내지 2000Å 두께로 형성하는 것을 특징으로 하는 반도체 소자의 소자 분리막 형성 방법.
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KR1020020084285A KR100911984B1 (ko) | 2002-12-26 | 2002-12-26 | 반도체 소자의 소자 분리막 형성 방법 |
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KR1020020084285A KR100911984B1 (ko) | 2002-12-26 | 2002-12-26 | 반도체 소자의 소자 분리막 형성 방법 |
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KR20040057527A KR20040057527A (ko) | 2004-07-02 |
KR100911984B1 true KR100911984B1 (ko) | 2009-08-13 |
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KR1020020084285A KR100911984B1 (ko) | 2002-12-26 | 2002-12-26 | 반도체 소자의 소자 분리막 형성 방법 |
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Families Citing this family (1)
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KR102021768B1 (ko) | 2013-03-15 | 2019-09-17 | 삼성전자 주식회사 | 반도체 장치의 제조 방법 및 그 방법에 의해 제조된 반도체 장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR930018690A (ko) * | 1992-02-24 | 1993-09-22 | 김광호 | 반도체장치의 제조방법 |
KR19990076326A (ko) * | 1998-03-31 | 1999-10-15 | 김영환 | 반도체장치의 소자 격리 방법 |
KR20020050761A (ko) * | 2000-12-21 | 2002-06-27 | 박종섭 | 반도체장치의 소자격리방법 |
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2002
- 2002-12-26 KR KR1020020084285A patent/KR100911984B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR930018690A (ko) * | 1992-02-24 | 1993-09-22 | 김광호 | 반도체장치의 제조방법 |
KR19990076326A (ko) * | 1998-03-31 | 1999-10-15 | 김영환 | 반도체장치의 소자 격리 방법 |
KR20020050761A (ko) * | 2000-12-21 | 2002-06-27 | 박종섭 | 반도체장치의 소자격리방법 |
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