KR100356478B1 - 반도체 소자의 게이트 전극 형성 방법 - Google Patents
반도체 소자의 게이트 전극 형성 방법 Download PDFInfo
- Publication number
- KR100356478B1 KR100356478B1 KR1020000084677A KR20000084677A KR100356478B1 KR 100356478 B1 KR100356478 B1 KR 100356478B1 KR 1020000084677 A KR1020000084677 A KR 1020000084677A KR 20000084677 A KR20000084677 A KR 20000084677A KR 100356478 B1 KR100356478 B1 KR 100356478B1
- Authority
- KR
- South Korea
- Prior art keywords
- oxide film
- gate electrode
- forming
- etching
- semiconductor device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000004065 semiconductor Substances 0.000 title claims abstract description 24
- 238000005530 etching Methods 0.000 claims abstract description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 14
- 229920005591 polysilicon Polymers 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 238000001039 wet etching Methods 0.000 claims description 7
- 238000001312 dry etching Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000059 patterning Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000001878 scanning electron micrograph 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
- H01L21/02—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
- H01L21/30—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
-
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/661—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Electrodes Of Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (4)
- 반도체 기판 전체 상에 산화막을 형성하는 단계;상기 산화막 상에 소정의 패턴으로 레지스트를 형성하여 소정 영역의 상기 산화막을 노출시키는 단계;상기 레지스트를 식각 마스크로 하는 식각 공정으로 상기 산화막의 노출된 영역을 제거하여 상기 반도체 기판의 표면을 노출시키는 단계;상기 레지스트를 제거한 후 열처리를 실시하는 단계;상기 반도체 기판의 노출된 표면에 게이트 산화막을 형성하는 단계;상기 게이트 산화막을 포함한 전체 상부에 폴리실리콘층을 형성하는 단계;화학적 기계적 연마를 실시하여 상기 산화막 상의 상기 폴리실리콘층을 제거하여 분리된 게이트 전극을 형성하는 단계;상기 산화막을 습식 식각으로 1차 제거하는 단계 및상기 산화막을 건식 식각으로 완전히 제거하는 단계로 이루어지는 것을 특징으로 하는 반도체 소자의 게이트 전극 형성 방법.
- 제 1 항에 있어서,상기 산화막은 최종 공정에서 형성될 게이트 전극의 두께보다 약 500Å 정도 높게 형성하는 것을 특징으로 하는 반도체 소자의 게이트 전극 형성 방법.
- 제 1 항에 있어서,상기 습식 식각은 등방성 식각으로 HF 또는 BOE를 식각제로 사용하여 상기 게이트 산화막보다 약 50Å 정도 높은 곳까지의 산화막만 제거하는 것을 특징으로 하는 반도체 소자의 게이트 전극 형성 방법.
- 제 1 항에 있어서,상기 건식 식각은 이방성 식각인 것을 특징으로 하는 반도체 소자의 게이트 전극 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000084677A KR100356478B1 (ko) | 2000-12-28 | 2000-12-28 | 반도체 소자의 게이트 전극 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000084677A KR100356478B1 (ko) | 2000-12-28 | 2000-12-28 | 반도체 소자의 게이트 전극 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020055543A KR20020055543A (ko) | 2002-07-09 |
KR100356478B1 true KR100356478B1 (ko) | 2002-10-18 |
Family
ID=27688019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000084677A Expired - Fee Related KR100356478B1 (ko) | 2000-12-28 | 2000-12-28 | 반도체 소자의 게이트 전극 형성 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100356478B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108389906B (zh) * | 2017-02-03 | 2023-01-10 | 联华电子股份有限公司 | 高压金属氧化物半导体晶体管元件 |
-
2000
- 2000-12-28 KR KR1020000084677A patent/KR100356478B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR20020055543A (ko) | 2002-07-09 |
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