KR100910815B1 - 반도체 소자 및 그 제조 방법 - Google Patents
반도체 소자 및 그 제조 방법 Download PDFInfo
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- KR100910815B1 KR100910815B1 KR1020070088244A KR20070088244A KR100910815B1 KR 100910815 B1 KR100910815 B1 KR 100910815B1 KR 1020070088244 A KR1020070088244 A KR 1020070088244A KR 20070088244 A KR20070088244 A KR 20070088244A KR 100910815 B1 KR100910815 B1 KR 100910815B1
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- 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
- H10D64/01—Manufacture or treatment
- H10D64/025—Manufacture or treatment forming recessed gates, e.g. by using local oxidation
- H10D64/027—Manufacture or treatment forming recessed gates, e.g. by using local oxidation by etching at gate locations
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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
- H01L21/04—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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
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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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
- H10D62/149—Source or drain regions of field-effect devices
- H10D62/151—Source or drain regions of field-effect devices of IGFETs
- H10D62/152—Source regions of DMOS transistors
- H10D62/155—Shapes
-
- 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
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
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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 (10)
- 삭제
- 삭제
- 반도체 기판을 선택적으로 노출시키는 마스크 패턴을 형성하는 단계;상기 노출된 반도체 기판에 이온 주입하여 제 1 예비 소스 영역을 형성하는 단계;상기 마스크 패턴을 식각 마스크로 상기 반도체 기판을 식각하여 예비 트렌치 및 상기 예비 트렌치의 양측 모서리에 제 1 소스 영역을 형성하는 단계:상기 예비 트렌치 내벽에 이온 주입하여 제 2 예비 소스 영역을 형성하는 단계:상기 예비 트렌치를 식각하여 트렌치 및 상기 트렌치의 측벽 일부에 형성된 제 2 소스 영역을 형성하는 단계;상기 트렌치 내벽에 게이트 산화막을 형성하는 단계;상기 트렌치 내의 상기 게이트 산화막 상에 게이트 패턴을 형성하는 단계; 및상기 트렌치 내에 상기 게이트 패턴을 덮는 캡 산화막 패턴을 형성하는 단계를 포함하는 반도체 소자의 제조 방법.
- 제 3항에 있어서,상기 반도체 기판을 선택적으로 노출시키는 상기 마스크 패턴을 형성하는 단계 이전에,실리콘 기판에 드레인 영역을 형성하는 단계;상기 실리콘 기판 상에 실리콘을 성장시켜 에피층을 형성하는 단계; 및상기 에피층에 드리프트 영역, 상기 드리프트 영역 상에 웰 영역을 형성하여 상기 반도체 기판을 준비하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 3항에 있어서,상기 마스크 패턴을 형성하는 단계에 있어서,상기 반도체 기판 상에 패드 산화막, 상기 패드 산화막 상에 질화막, 상기 질화막 상에 산화막을 형성하는 단계;상기 패드 산화막, 상기 질화막, 상기 산화막을 패터닝하여 상기 마스크 패턴을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 3항에 있어서,상기 제 1 소스 영역과 상기 제 2 소스 영역은 서로 연결되어 있으며, 동일한 불순물이 주입된 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 3항에 있어서,상기 제 2 소스 영역을 형성하는 단계에 있어서,상기 반도체 기판에 대하여 경사진 방향으로 불순물이 주입된 것을 특징으로 하는 반도체 기판의 제조 방법.
- 제 3항에 있어서,상기 트렌치의 측벽으로부터 상기 제 1 소스 영역의 가로 폭이 상기 제 2 소스 영역의 가로 폭보다 큰 것을 특징으로 하는 반도체 기판의 제조 방법.
- 청구항 9은(는) 설정등록료 납부시 포기되었습니다.제 3항에 있어서,
- 제 3항에 있어서,상기 제 1 예비 소스 영역을 형성하는 단계에 있어서, 상기 제 1 예비 소스 영역은 상기 마스크 패턴의 아래로 확산되어 상기 제 1 소스 영역을 형성하는 것을 특징으로 하는 반도체 기판의 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070088244A KR100910815B1 (ko) | 2007-08-31 | 2007-08-31 | 반도체 소자 및 그 제조 방법 |
Applications Claiming Priority (1)
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---|---|---|---|
KR1020070088244A KR100910815B1 (ko) | 2007-08-31 | 2007-08-31 | 반도체 소자 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20090022685A KR20090022685A (ko) | 2009-03-04 |
KR100910815B1 true KR100910815B1 (ko) | 2009-08-04 |
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KR1020070088244A Expired - Fee Related KR100910815B1 (ko) | 2007-08-31 | 2007-08-31 | 반도체 소자 및 그 제조 방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106449758A (zh) * | 2016-10-13 | 2017-02-22 | 中航(重庆)微电子有限公司 | 一种沟槽功率mos器件结构及其制备方法 |
CN109244138A (zh) * | 2018-09-19 | 2019-01-18 | 电子科技大学 | 具有良好第三象限性能的SiC MOSFET器件 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021122629A1 (de) | 2020-09-03 | 2022-03-17 | Hyundai Mobis Co., Ltd. | Leistungshalbleitervorrichtung und verfahren zur herstellung davon |
KR102379156B1 (ko) * | 2020-09-03 | 2022-03-25 | 현대모비스 주식회사 | 전력 반도체 소자 및 그 제조 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000050396A (ko) * | 1999-01-08 | 2000-08-05 | 윤종용 | 트렌치 게이트형 전력 반도체 소자 및 그 제조방법 |
JP2005116822A (ja) | 2003-10-08 | 2005-04-28 | Toyota Motor Corp | 絶縁ゲート型半導体装置およびその製造方法 |
JP2005209807A (ja) | 2004-01-21 | 2005-08-04 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置およびその製造方法 |
JP2006228906A (ja) | 2005-02-16 | 2006-08-31 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
-
2007
- 2007-08-31 KR KR1020070088244A patent/KR100910815B1/ko not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000050396A (ko) * | 1999-01-08 | 2000-08-05 | 윤종용 | 트렌치 게이트형 전력 반도체 소자 및 그 제조방법 |
JP2005116822A (ja) | 2003-10-08 | 2005-04-28 | Toyota Motor Corp | 絶縁ゲート型半導体装置およびその製造方法 |
JP2005209807A (ja) | 2004-01-21 | 2005-08-04 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置およびその製造方法 |
JP2006228906A (ja) | 2005-02-16 | 2006-08-31 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106449758A (zh) * | 2016-10-13 | 2017-02-22 | 中航(重庆)微电子有限公司 | 一种沟槽功率mos器件结构及其制备方法 |
CN109244138A (zh) * | 2018-09-19 | 2019-01-18 | 电子科技大学 | 具有良好第三象限性能的SiC MOSFET器件 |
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