KR100353828B1 - 반도체소자의 소자 격리막 형성 방법 - Google Patents
반도체소자의 소자 격리막 형성 방법 Download PDFInfo
- Publication number
- KR100353828B1 KR100353828B1 KR1020000073681A KR20000073681A KR100353828B1 KR 100353828 B1 KR100353828 B1 KR 100353828B1 KR 1020000073681 A KR1020000073681 A KR 1020000073681A KR 20000073681 A KR20000073681 A KR 20000073681A KR 100353828 B1 KR100353828 B1 KR 100353828B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- polysilicon
- trench
- forming
- semiconductor substrate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004065 semiconductor Substances 0.000 title claims abstract description 32
- 238000002955 isolation Methods 0.000 title claims abstract description 25
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 40
- 229920005591 polysilicon Polymers 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 150000004767 nitrides Chemical class 0.000 claims abstract description 26
- 238000005530 etching Methods 0.000 claims abstract description 14
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 150000002500 ions Chemical class 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 241000293849 Cordylanthus Species 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000000926 separation method Methods 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
- H01L21/70—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
-
- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28035—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities
-
- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
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)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Element Separation (AREA)
Abstract
Description
Claims (5)
- 반도체 소자의 제조 방법에 있어서,반도체기판상에 게이트산화막, 제 1 폴리실리콘, 질화막을 차례로 형성하는 단계;소자격리마스크를 이용하여 상기 질화막, 제 1 폴리실리콘 및 게이트산화막을 선택적으로 식각하고, 순차적으로 상기 반도체기판을 소정 깊이로 식각하여 트렌치를 형성하는 단계;상기 트렌치를 포함한 반도체기판의 전면에 절연막을 형성하는 단계;상기 질화막을 연마정지막으로 하여 상기 절연막을 화학적기계적연마하여 필드절연막을 형성하는 단계;상기 질화막을 제거하는 단계;상기 필드절연막을 포함한 상기 제 1 폴리실리콘상에 제 2 폴리실리콘을 형성하는 단계; 및상기 제 1 폴리실리콘의 끝단을 오버랩시키는 폭으로 상기 제 2 폴리실리콘을 식각하여 상기 필드절연막을 노출시키는 단계를 포함하여 이루어짐을 특징으로 하는 소자 격리막의 형성 방법.
- 제 1 항에 있어서,상기 질화막을 제거한 후, HF 용액을 이용한 딥공정을 실시하는 단계를 더 포함하는 것을 특징으로 하는 소자 격리막의 형성 방법.
- 제 1 항에 있어서,상기 게이트산화막 형성전에,상기 반도체기판에 웰이온 및 문턱전압을 조절을 위한 이온을 주입시키는 단계를 더 포함하는 것을 특징으로 하는 소자 격리막의 형성 방법.
- 제 1 항에 있어서,상기 절연막은 USG막을 이용함을 특징으로 하는 소자 격리막의 형성 방법.
- 제 1 항에 있어서,상기 트렌치 형성후,상기 트렌치의 측벽을 산화시키는 것을 특징으로 하는 소자 격리막의 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000073681A KR100353828B1 (ko) | 2000-12-06 | 2000-12-06 | 반도체소자의 소자 격리막 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000073681A KR100353828B1 (ko) | 2000-12-06 | 2000-12-06 | 반도체소자의 소자 격리막 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020044680A KR20020044680A (ko) | 2002-06-19 |
KR100353828B1 true KR100353828B1 (ko) | 2002-09-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000073681A KR100353828B1 (ko) | 2000-12-06 | 2000-12-06 | 반도체소자의 소자 격리막 형성 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100353828B1 (ko) |
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2000
- 2000-12-06 KR KR1020000073681A patent/KR100353828B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20020044680A (ko) | 2002-06-19 |
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