KR920006433B1 - Mosfet 형성방법 - Google Patents
Mosfet 형성방법 Download PDFInfo
- Publication number
- KR920006433B1 KR920006433B1 KR1019890010257A KR890010257A KR920006433B1 KR 920006433 B1 KR920006433 B1 KR 920006433B1 KR 1019890010257 A KR1019890010257 A KR 1019890010257A KR 890010257 A KR890010257 A KR 890010257A KR 920006433 B1 KR920006433 B1 KR 920006433B1
- Authority
- KR
- South Korea
- Prior art keywords
- oxide film
- silicon oxide
- gate electrode
- forming
- silicon
- 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
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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]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/0223—Manufacture or treatment of FETs having insulated gates [IGFET] having source and drain regions or source and drain extensions self-aligned to sides of the gate
- H10D30/0227—Manufacture or treatment of FETs having insulated gates [IGFET] having source and drain regions or source and drain extensions self-aligned to sides of the gate having both lightly-doped source and drain extensions and source and drain regions self-aligned to the sides of the gate, e.g. lightly-doped drain [LDD] MOSFET or double-diffused drain [DDD] MOSFET
-
- 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
- H10D64/021—Manufacture or treatment using multiple gate spacer layers, e.g. bilayered sidewall spacers
-
- 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
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/661—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation
- H10D64/662—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures
- H10D64/664—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures the additional layers comprising a barrier layer between the layer of silicon and an upper metal or metal silicide layer
-
- 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
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- H10P50/28—
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (2)
- 실리콘 기판 상부에 게이트 산화막, 도프된 폴리 실리콘층 및 금속 실리사이드층을 순차적으로 형성하여 폴리사이드 구조를 형성하고, 게이트전극 패턴공정으로 예정된 부분의 도프된 폴리실리콘층과 금속 실리사이드층을 제거하여 폴리사이드 게이트 전극을 형성하는 단계와, 게이트 전극 상부 및 측면에 산화공정으로 제1실리콘 산화막을 형성하고, 저농도 불순물을 실리콘 기판으로 이온주입시켜서 LDD영역을 형성한다음, 전체적으로 제2실리콘 산화막을 예정된 두께로 증착한후 비등방성 식각으로 제2실리콘 산화막을 식각하여 게이트전극 측벽에 실리콘 산화막 스페이서를 형성하고, 고농도 불순물을 실리콘 기판으로 이온주입시키고, 확산공정으로 소오스/드레인을 형성하는 단계로 이루어지는 반도체 소자 제조방법에 있어서, 산화막 스페이서를 형성하는 공정에서, 게이트전극 상부의 제1실리콘 산화막이 제거되어 게이트 전극의 실리사이드가 노출되는데 이로인하여 후공정에서 실리사이드가 열화되는 것을 방지하기 위하여, 상기와 같은 방법으로 게이트 전극 상부 및 측면에 제1실리콘 산화막을 형성하고 LDD영역을 형성한다음, 게이트산화막 및 제 1실리콘 산화막을 포함하는 전체구조 상부에 실리콘 질화막을 얇게 증착하는 공정과, 제2실리콘 산화막을 상기 실리콘 질화막 상부면에 예정된 두께를 형성한다음, 상기 제2실리콘 산화막을 비등방성 식각으로 식각하여 게이트전극 측벽에 실리콘 산화막 스페이서를 형성하는 공정과, 상기 공정에 의해 게이트전극 상부의 제1실리콘 산화막과 실리콘기판 상부의 게이트 산화막 상부의 노출된 실리콘 질화막을 제거하는 공정과, 고농도 불순물을 실리콘 기판으로 이온주입시키고, 확산공정으로 주입된 불순물을 실리콘 기판으로 확산시켜 소오스/드레인을 형성하는 공정으로 이루어진 것을 특징으로 하는 MOSFET 형성방법.
- 제1항에 있어서, 상기 제1실리콘 산화막과 게이트 산화막 상부에 노출된 실리콘 질화막을 인산(H2PO4)용액 또는 건식방법으로 제거하는 것을 특징으로 하는MOSFET 형성방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019890010257A KR920006433B1 (ko) | 1989-07-20 | 1989-07-20 | Mosfet 형성방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019890010257A KR920006433B1 (ko) | 1989-07-20 | 1989-07-20 | Mosfet 형성방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910003786A KR910003786A (ko) | 1991-02-28 |
| KR920006433B1 true KR920006433B1 (ko) | 1992-08-06 |
Family
ID=19288224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019890010257A Expired KR920006433B1 (ko) | 1989-07-20 | 1989-07-20 | Mosfet 형성방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920006433B1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0141512B1 (ko) * | 1994-06-14 | 1998-07-15 | 마재열 | 자전거의 전진구동 주행장치 |
-
1989
- 1989-07-20 KR KR1019890010257A patent/KR920006433B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR910003786A (ko) | 1991-02-28 |
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