KR100276695B1 - 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법 - Google Patents
전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법 Download PDFInfo
- Publication number
- KR100276695B1 KR100276695B1 KR1019980052020A KR19980052020A KR100276695B1 KR 100276695 B1 KR100276695 B1 KR 100276695B1 KR 1019980052020 A KR1019980052020 A KR 1019980052020A KR 19980052020 A KR19980052020 A KR 19980052020A KR 100276695 B1 KR100276695 B1 KR 100276695B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- polysilicon
- patterned
- gate
- oxide
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 38
- 229920005591 polysilicon Polymers 0.000 title claims abstract description 38
- 230000005669 field effect Effects 0.000 title abstract description 10
- 238000001459 lithography Methods 0.000 claims abstract description 13
- 238000005530 etching Methods 0.000 claims abstract description 12
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 6
- 238000000059 patterning Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process 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
- H01L21/28—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
- H01L21/28123—Lithography-related aspects, e.g. sub-lithography lengths; Isolation-related aspects, e.g. to solve problems arising at the crossing with the side of the device isolation; Planarisation aspects
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0321—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon
- H10D30/0323—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon comprising monocrystalline silicon
-
- 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)
- 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)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (4)
- 실리콘 기판 상부에 매몰 산화막 및 실리콘막이 적층된 SOI 기판이 제공되는 단계와,산화 공정을 실시하여 SOI 기판의 실리콘막 상부에 제 1 산화막을 형성한 후 상기 제 1 산화막을 패터닝하는 단계와,상기 패터닝된 제 1 산화막을 식각 마스크로 이용한 식각 공정으로 상기 실리콘막을 패터닝하여 소오스, 드레인 및 채널 영역을 확정하는 단계와,전체 구조 상부에 폴리실리콘막 및 제 2 산화막을 순차적으로 형성한 후 상기 제 2 산화막을 패터닝하는 단계와,상기 패터닝된 제 2 산화막을 식각 마스크로 상기 폴리실리콘막을 식각하여 게이트를 확정하는 단계와,상기 패터닝된 폴리실리콘막을 측면 방향으로 소정 두께로 산화시키는 단계와,상기 패터닝된 제 2 산화막 및 제 1 산화막을 순차적으로 제거하고, 이로 인해 상기 패터닝된 폴리실리콘막 하부에 상기 제 1 산화막이 일부 잔류되도록 하는 단계와,상기 패터닝된 실리콘막 및 폴리실리콘막에 이온 도핑을 실시하는 단계와,리소그라피, 금속 증착 및 리프트 오프 공정을 순차적으로 실시하여 소오스 영역, 드레인 영역 및 폴리실리콘 게이트 패드에 금속을 증착시킨 후 열처리 공정을 실시하는 단계를 포함하여 이루어진 것을 특징으로 하는 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법.
- 제 1 항에 있어서, 상기 폴리실리콘막은 화학 기상 증착법에 의해 형성되는 것을 특징으로 하는 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법.
- 제 1 항에 있어서, 상기 제 2 산화막은 상기 폴리실리콘막을 산화시켜 형성하는 것을 특징으로 하는 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법.
- 제 1 항에 있어서, 상기 패터닝된 실리콘막 및 폴리실리콘막에 도핑되는 이온은 P+이온인 것을 특징으로 하는 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980052020A KR100276695B1 (ko) | 1998-11-30 | 1998-11-30 | 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980052020A KR100276695B1 (ko) | 1998-11-30 | 1998-11-30 | 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000034646A KR20000034646A (ko) | 2000-06-26 |
KR100276695B1 true KR100276695B1 (ko) | 2001-03-02 |
Family
ID=19560599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980052020A Expired - Fee Related KR100276695B1 (ko) | 1998-11-30 | 1998-11-30 | 전계 효과 트랜지스터의 폴리실리콘 게이트 형성 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100276695B1 (ko) |
-
1998
- 1998-11-30 KR KR1019980052020A patent/KR100276695B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20000034646A (ko) | 2000-06-26 |
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