KR100521994B1 - 트렌치게이트형모스트랜지스터및그제조방법 - Google Patents
트렌치게이트형모스트랜지스터및그제조방법 Download PDFInfo
- Publication number
- KR100521994B1 KR100521994B1 KR1019960074226A KR19960074226A KR100521994B1 KR 100521994 B1 KR100521994 B1 KR 100521994B1 KR 1019960074226 A KR1019960074226 A KR 1019960074226A KR 19960074226 A KR19960074226 A KR 19960074226A KR 100521994 B1 KR100521994 B1 KR 100521994B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- semiconductor substrate
- conductivity type
- conductive
- high concentration
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000004065 semiconductor Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 210000000746 body region Anatomy 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 description 7
- 239000000969 carrier Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (2)
- 소정폭 및 소정깊이로 트렌치가 형성된 제 1 도전형 반도체기판;상기 트렌치 바닥근방에 형성된 고농도 제 1 도전형 불순물영역;상기 제 1 도전형 반도체기판 상에, 상기 트렌치 깊이보다 얕게 형성된 제 2도전형 보디영역;상기 보디영역 상의 반도체기판 표면근방에 상기 트렌치의 안쪽 측벽에 각각 접하도록 형성된 고농도 제 1 도전형 영역인 소스 및 드레인 영역;상기 트렌치 하부 및 양측벽을 포함하는 상기 트렌치의 표면과 상기 소스 및 드레인 영역의 일부 표면에 형성된 게이트 산화막; 및상기 게이트 산화막이 피복된 트렌치 내에 형성된 게이트 전극층을 구비하는 것을 특징으로 하는 트렌치 게이트형 모스트랜지스터.
- 제 1 도전형 반도체기판 상에, 후속공정에서 형성될 트렌치의 깊이보다 얕게 제 2 도전형 보디영역을 형성하고 트렌치를 형성하는 단계;상기 트렌치의 바닥 및 양 측벽을 포함하는 반도체기판 표면에 게이트 산화막을 형성하는 단계; 및상기 트렌치 바닥 및 상기 제 2 도전형 보디영역이 형성된 반도체 기판 표면중 상기 트렌치의 양쪽 측벽에 인접한 부분에, 고농도 제 1 도전형 불순물을 주입하여, 상기 트렌치 바닥 근방의 제 1 도전형 불순물 영역 및 상기 트렌치의 양쪽 측벽에 각각 인접한 부위의 반도체 기판 표면 근방에 소스 및 드레인 영역을 동시에 형성하는 단계를 구비하는 것을 특징으로 하는 트렌치 게이트형 모스트랜지스터의 제조방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960074226A KR100521994B1 (ko) | 1996-12-27 | 1996-12-27 | 트렌치게이트형모스트랜지스터및그제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960074226A KR100521994B1 (ko) | 1996-12-27 | 1996-12-27 | 트렌치게이트형모스트랜지스터및그제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980055020A KR19980055020A (ko) | 1998-09-25 |
| KR100521994B1 true KR100521994B1 (ko) | 2005-12-21 |
Family
ID=37306705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960074226A Expired - Lifetime KR100521994B1 (ko) | 1996-12-27 | 1996-12-27 | 트렌치게이트형모스트랜지스터및그제조방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100521994B1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8767434B2 (en) * | 2012-09-11 | 2014-07-01 | SK Hynix Inc. | E-fuse array circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63229756A (ja) * | 1987-03-18 | 1988-09-26 | Nec Corp | 半導体装置の製造方法 |
| US4835585A (en) * | 1984-11-26 | 1989-05-30 | American Telephone And Telegraph Company, At&T Bell Laboratories | Trench gate structures |
| KR920015577A (ko) * | 1991-01-09 | 1992-08-27 | 아오이 죠이치 | 반도체장치 |
| US5168331A (en) * | 1991-01-31 | 1992-12-01 | Siliconix Incorporated | Power metal-oxide-semiconductor field effect transistor |
| KR970054410A (ko) * | 1995-12-19 | 1997-07-31 | 문정환 | 반도체소자 |
-
1996
- 1996-12-27 KR KR1019960074226A patent/KR100521994B1/ko not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4835585A (en) * | 1984-11-26 | 1989-05-30 | American Telephone And Telegraph Company, At&T Bell Laboratories | Trench gate structures |
| JPS63229756A (ja) * | 1987-03-18 | 1988-09-26 | Nec Corp | 半導体装置の製造方法 |
| KR920015577A (ko) * | 1991-01-09 | 1992-08-27 | 아오이 죠이치 | 반도체장치 |
| US5168331A (en) * | 1991-01-31 | 1992-12-01 | Siliconix Incorporated | Power metal-oxide-semiconductor field effect transistor |
| KR970054410A (ko) * | 1995-12-19 | 1997-07-31 | 문정환 | 반도체소자 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980055020A (ko) | 1998-09-25 |
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