KR0161686B1 - 반도체소자의 트랜치 셀 제조방법 - Google Patents
반도체소자의 트랜치 셀 제조방법 Download PDFInfo
- Publication number
- KR0161686B1 KR0161686B1 KR1019900002241A KR900002241A KR0161686B1 KR 0161686 B1 KR0161686 B1 KR 0161686B1 KR 1019900002241 A KR1019900002241 A KR 1019900002241A KR 900002241 A KR900002241 A KR 900002241A KR 0161686 B1 KR0161686 B1 KR 0161686B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- forming
- oxide film
- semiconductor substrate
- gate
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title description 5
- 239000004065 semiconductor Substances 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/05—Making the transistor
- H10B12/053—Making the transistor the transistor being at least partially in a trench in the substrate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0147—Manufacturing their gate sidewall spacers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (1)
- 제1도전형의 반도체기판에 제1트렌치를 형성하고 상기 제1트렌치 내에 필드산화막을 형성하는 공정과, 상기 반도체기판의 상기 제1트렌치의 인접 영역에 제2트렌치를 형성하고 상기 반도체기판과 반대 도전형인 제2도전형의 불순물을 이온 주입하여 상기 반도체기판과 상기 제2트렌치의 바닥면에 소오스 및 드레인영역을 형성하는 공정과, 상기 제2트렌치의 측면에 게이트산화막 및 게이트를 형성하고 상기 반도체기판 상에 산화막을 상기 제2트렌치를 채우도록 증착하는 공정과, 상기 제2트렌치의 가운데 부분과 대응하는 상기 산화막, 게이트산화막 및 반도체기판을 상기 소오스영역의 바닥면 보다 깊게 식각하여 제3트렌치를 형성하는 공정과, 상기 제3트렌치 내부의 표면에 상기 소오스영역과 접촉되며 외부로 연장되게 축적 전극을 형성하고, 상기 축적전극 상에 유전막을 형성한 후 상기 유전막 상에 플레이트전극을 형성하여 캐패시터를 형성하는 공정을 구비하는 반도체소자의 트렌치 셀 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900002241A KR0161686B1 (ko) | 1990-02-22 | 1990-02-22 | 반도체소자의 트랜치 셀 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900002241A KR0161686B1 (ko) | 1990-02-22 | 1990-02-22 | 반도체소자의 트랜치 셀 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910016079A KR910016079A (ko) | 1991-09-30 |
KR0161686B1 true KR0161686B1 (ko) | 1998-12-01 |
Family
ID=19296317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900002241A KR0161686B1 (ko) | 1990-02-22 | 1990-02-22 | 반도체소자의 트랜치 셀 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0161686B1 (ko) |
-
1990
- 1990-02-22 KR KR1019900002241A patent/KR0161686B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910016079A (ko) | 1991-09-30 |
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