KR940009365B1 - 트랜치를 이용한 cmos 제조방법 - Google Patents
트랜치를 이용한 cmos 제조방법 Download PDFInfo
- Publication number
- KR940009365B1 KR940009365B1 KR1019910007704A KR910007704A KR940009365B1 KR 940009365 B1 KR940009365 B1 KR 940009365B1 KR 1019910007704 A KR1019910007704 A KR 1019910007704A KR 910007704 A KR910007704 A KR 910007704A KR 940009365 B1 KR940009365 B1 KR 940009365B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- polysilicon
- oxide film
- forming
- type
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 14
- 229920005591 polysilicon Polymers 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims 3
- 238000002955 isolation Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 4
- 108090000699 N-Type Calcium Channels Proteins 0.000 description 3
- 102000004129 N-Type Calcium Channels Human genes 0.000 description 3
- 108010075750 P-Type Calcium Channels Proteins 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Classifications
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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
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0195—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices the components including vertical IGFETs
-
- 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
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0188—Manufacturing their isolation regions
-
- 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
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0191—Manufacturing their doped wells
-
- 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
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
- H10D84/85—Complementary IGFETs, e.g. CMOS
- H10D84/859—Complementary IGFETs, e.g. CMOS comprising both N-type and P-type wells, e.g. twin-tub
Landscapes
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (1)
- 제1도전형의 반도체 기판의 일정부분에 위쪽 트랜치가 아래쪽 트랜치보다 넓은 일체형의 이중 트랜치를 형성하고 상기 아래쪽 트랜치를 산화막으로 메워 웰격리용 절연막을 형성하는 공정과, 상기 웰격리용 절연막을 중심으로 기판의 일측에는 제1도전형의 웰을, 다른 일측에는 상기 제1도전형과 반대도전형인 제2도전형의 웰을 각각 형성하고, 상기 각각의 웰의 위쪽 트랜치의 밑면과 위쪽 모서리 부분 표면에 웰과 반대도전형인 소오스 및 드레인 영역을 형성하는 공정과, 전면에 게이트 산화막과 폴리실리콘을 차례로 도포하고 상기 폴리실리콘을 등방성 식각하여 위쪽 트랜치 양측벽에 측벽 형상의 게이트를 형성하는 공정과, 전면에 제1산화막을 도포하고 상기 양게이트 사이에 도포된 제1산화막을 선택적으로 제거하며 상기 위쪽 트랜치의 밑면을 노출시키고 제1산화막이 제거된 부위에 노드폴리실리콘을 형성하는 공정과, 상기 노드폴리실리콘상에 제2산화막을 형성하고 상기 게이트상의 제1산화막의 일부를 식각한 후 상기 위쪽 트랜치를 폴리실리콘으로 메우고 배선을 실시하는 공정으로 이루어진 트랜치를 이용한 CMOS 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910007704A KR940009365B1 (ko) | 1991-05-13 | 1991-05-13 | 트랜치를 이용한 cmos 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910007704A KR940009365B1 (ko) | 1991-05-13 | 1991-05-13 | 트랜치를 이용한 cmos 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920022550A KR920022550A (ko) | 1992-12-19 |
KR940009365B1 true KR940009365B1 (ko) | 1994-10-07 |
Family
ID=19314366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910007704A KR940009365B1 (ko) | 1991-05-13 | 1991-05-13 | 트랜치를 이용한 cmos 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940009365B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6790781B2 (en) | 2001-07-13 | 2004-09-14 | Micron Technology, Inc. | Dual depth trench isolation |
-
1991
- 1991-05-13 KR KR1019910007704A patent/KR940009365B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6790781B2 (en) | 2001-07-13 | 2004-09-14 | Micron Technology, Inc. | Dual depth trench isolation |
US6875697B2 (en) | 2001-07-13 | 2005-04-05 | Micron Technology, Inc. | Dual depth trench isolation |
Also Published As
Publication number | Publication date |
---|---|
KR920022550A (ko) | 1992-12-19 |
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