KR100265598B1 - 반도체소자의 게이트전극 제조방법 - Google Patents
반도체소자의 게이트전극 제조방법 Download PDFInfo
- Publication number
- KR100265598B1 KR100265598B1 KR1019970030260A KR19970030260A KR100265598B1 KR 100265598 B1 KR100265598 B1 KR 100265598B1 KR 1019970030260 A KR1019970030260 A KR 1019970030260A KR 19970030260 A KR19970030260 A KR 19970030260A KR 100265598 B1 KR100265598 B1 KR 100265598B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- gate electrode
- forming
- polysilicon layer
- 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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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
- H01L21/02—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
- H01L21/28044—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 the conductor comprising at least another non-silicon conductive layer
- H01L21/28061—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 the conductor comprising at least another non-silicon conductive layer the conductor comprising a metal or metal silicide formed by deposition, e.g. sputter deposition, i.e. without a silicidation reaction
-
- 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
- H10D64/662—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 the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures
- H10D64/664—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 the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures the additional layers comprising a barrier layer between the layer of silicon and an upper metal or metal silicide layer
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (9)
- 반도체기판상에 게이트 산화막을 형성하는 공정과, 상기 게이트산화막상에 다결정실리콘층을 형성하는 공정과, 상기 다결정실리콘층 상에 제1W층을 소정 두께 형성하는 공정과, 상기 제1W층을 질소 플라즈마 처리하여 WNX층을 형성하는 공정과, 상기 WNX층 상에 제2W층을 형성하는 공정과, 상기 제2W층과 WNX층 및 다결정실리콘층을 순차적으로 게이트 패턴닝 마스크로 사진식각하여 게이트전극을 형성하는 공정을 구비하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 다결정실리콘층을 SiH4, Si2H6또는 SiH2Cl2가스를 소스 가스로 사용하여 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 다결정실리콘층 형성시 PH3나 AsH3등의 가스를 혼합 사용하여 P 이나 As가 불순물로 포함되도록 하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 다결정실리콘층을 언도프트로 형성하고 후에 이온주입으로 도핑하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 다결정실리콘층 형성후에 자연산화막과 불순물 제거를 위한 세척 공정을 실시하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 제1W층을 30∼100Å 두께로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 질소 플라즈마 처리 공정은 1mTorr∼10Torr 질소 분위기에서, DC 나 RF 또는 마이크로파로 50∼1000W 파워로 처리하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 제2W층을 300∼1000Å 두께로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
- 제1항에 있어서, 상기 제1 및 제2W층을 스퍼터링 방법이나 WF6와 SiH4또는 H2가스를 사용하는 CVD 방법으로 형성하는 것을 특징으로 하는 반도체소자의 게이트전극 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970030260A KR100265598B1 (ko) | 1997-06-30 | 1997-06-30 | 반도체소자의 게이트전극 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970030260A KR100265598B1 (ko) | 1997-06-30 | 1997-06-30 | 반도체소자의 게이트전극 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990006038A KR19990006038A (ko) | 1999-01-25 |
KR100265598B1 true KR100265598B1 (ko) | 2000-10-02 |
Family
ID=19513003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970030260A Expired - Fee Related KR100265598B1 (ko) | 1997-06-30 | 1997-06-30 | 반도체소자의 게이트전극 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100265598B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100393964B1 (ko) * | 2000-12-18 | 2003-08-06 | 주식회사 하이닉스반도체 | 에스램 소자의 게이트 형성 방법 |
KR100696763B1 (ko) * | 2001-06-22 | 2007-03-19 | 주식회사 하이닉스반도체 | 반도체소자의 게이트전극 형성방법 |
-
1997
- 1997-06-30 KR KR1019970030260A patent/KR100265598B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR19990006038A (ko) | 1999-01-25 |
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