KR101643338B1 - 트렌치 게이트형 모스트랜지스터의 제조방법 - Google Patents
트렌치 게이트형 모스트랜지스터의 제조방법 Download PDFInfo
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- KR101643338B1 KR101643338B1 KR1020090052775A KR20090052775A KR101643338B1 KR 101643338 B1 KR101643338 B1 KR 101643338B1 KR 1020090052775 A KR1020090052775 A KR 1020090052775A KR 20090052775 A KR20090052775 A KR 20090052775A KR 101643338 B1 KR101643338 B1 KR 101643338B1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02293—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process formation of epitaxial layers by a deposition process
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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
- H01L21/34—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 not provided for in groups H01L21/18, H10D48/04 and H10D48/07, with or without impurities, e.g. doping materials
- H01L21/46—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/428
- H01L21/461—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/428 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/469—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/428 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After-treatment of these layers
- H01L21/4757—After-treatment
- H01L21/47573—Etching the layer
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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)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (7)
- 제 1 도전형의 에피택셜층, 제 2 도전형의 베이스 영역 및 제1 도전형의 소오스 영역이 순차적으로 형성된 반도체 기판에 상기 소오스 영역과 상기 베이스 영역을 관통하는 제 1 트렌치를 형성하는 단계와,상기 제 1 트렌치를 매립하는 게이트를 형성하고, 상기 게이트를 포함한 반도체 기판 전면에 층간절연층을 형성하는 단계와,상기 소오스 영역에 인접한 상기 베이스 영역을 소정 깊이 식각하여 상기 소오스 영역의 깊이보다 깊게 제 2 트렌치를 형성하는 단계와,상기 제 2 트렌치 내의 베이스 영역의 상부 표면과 측면, 및 상기 제2 트렌치 내의 상기 소오스 영역의 측면에 제 1 도전형 불순물 영역을 형성하는 단계와,상기 제 2 트렌치 내의 베이스 영역에 제 2 도전형의 불순물을 주입하여 상기 제 1 도전형 불순물 영역보다 깊도록 제 2 도전형 불순물 영역을 형성하는 단계와,상기 제2 트렌치를 식각하여 상기 제 2 트렌치 내의 베이스 영역의 상부 표면에 형성된 제 1 도전형의 불순물 영역을 제거하는 단계를 포함하는 것을 특징으로 하는 트렌치 게이트형 모스트랜지스터의 제조방법.
- 제 1항에 있어서,상기 게이트를 제 1 트렌치에 매립하기 전에상기 반도체 기판 전면에 게이트 산화막을 열 산화막을 통해 형성하는 단계를 더 포함하는 것을 특징으로 하는 트렌치 게이트형 모스트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 2 트렌치 내의 베이스 영역의 측면 및 상기 소오스 영역의 측면에 형성되는 제1 도전형 불순물 영역은 상기 제2 도전형 불순물 영역과 접하는 것을 특징으로 하는 게이트형 모스트랜지스터의 제조방법.
- 삭제
- 삭제
- 제 1항에 있어서,상기 제2 트렌치 내에 알루미늄층을 형성하는 단계를 더 포함하는 게이트형 모스트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 2 트렌치는 200Å ~ 500Å의 깊이로 추가 식각하는 것을 특징으로 하는 트렌치 게이트형 모스트랜지스터의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020090052775A KR101643338B1 (ko) | 2009-06-15 | 2009-06-15 | 트렌치 게이트형 모스트랜지스터의 제조방법 |
Applications Claiming Priority (1)
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KR1020090052775A KR101643338B1 (ko) | 2009-06-15 | 2009-06-15 | 트렌치 게이트형 모스트랜지스터의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20100134253A KR20100134253A (ko) | 2010-12-23 |
KR101643338B1 true KR101643338B1 (ko) | 2016-08-10 |
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KR1020090052775A Active KR101643338B1 (ko) | 2009-06-15 | 2009-06-15 | 트렌치 게이트형 모스트랜지스터의 제조방법 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000307115A (ja) | 1999-04-01 | 2000-11-02 | Intersil Corp | 高密度mosゲート型電力装置及びその製造方法 |
JP2003092405A (ja) * | 2001-09-19 | 2003-03-28 | Toshiba Corp | 半導体装置及びその製造方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19845003C1 (de) * | 1998-09-30 | 2000-02-10 | Siemens Ag | Vertikaler Feldeffekttransistor mit innenliegendem ringförmigen Gate und Herstellverfahren |
AT504290A2 (de) * | 2005-06-10 | 2008-04-15 | Fairchild Semiconductor | Feldeffekttransistor mit ladungsgleichgewicht |
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- 2009-06-15 KR KR1020090052775A patent/KR101643338B1/ko active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000307115A (ja) | 1999-04-01 | 2000-11-02 | Intersil Corp | 高密度mosゲート型電力装置及びその製造方法 |
JP2003092405A (ja) * | 2001-09-19 | 2003-03-28 | Toshiba Corp | 半導体装置及びその製造方法 |
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