KR0147775B1 - 트랜지스터의 게이트 전극 형성 방법 - Google Patents
트랜지스터의 게이트 전극 형성 방법Info
- Publication number
- KR0147775B1 KR0147775B1 KR1019940028658A KR19940028658A KR0147775B1 KR 0147775 B1 KR0147775 B1 KR 0147775B1 KR 1019940028658 A KR1019940028658 A KR 1019940028658A KR 19940028658 A KR19940028658 A KR 19940028658A KR 0147775 B1 KR0147775 B1 KR 0147775B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- forming
- thin film
- gate electrode
- polysilicon
- Prior art date
Links
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 21
- 229920005591 polysilicon Polymers 0.000 claims abstract description 21
- 238000005530 etching Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 125000006850 spacer group Chemical group 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000010408 film Substances 0.000 claims description 46
- 239000010409 thin film Substances 0.000 claims description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- 239000010937 tungsten Substances 0.000 claims description 10
- 150000004767 nitrides Chemical class 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- 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
- H10D84/0135—Manufacturing their gate conductors
Landscapes
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (6)
- 반도체 소자에 구비된 트랜지스터의 게이트 전극 형성방법에 있어서, 기판 상에 폴리실리콘막과 제1박막을 차례로 적층한 다음, 상기 제1박막을 선택 식각하여 게이트 전극이 형성될 부위의 상기 폴리실리콘막이 노출되는 오픈부를 형성하는 단계; 전체구조 상부에 제2박막을 형성한 다음, 상기 제2박막을 비등방성 식각하여 상기 오픈부의 제1박막 측벽에 제2박막 스페이서를 형성하는 단계; 상기 제2박막 스페이서의 형성에 의해 노출된 상기 폴리실리콘막 상부에 선택적 증착으로 금속막을 형성하는 단계; 및 상기 제2박막 스페이서와 제1박막을 제거하고, 상기 금속막을 식각마스크로 하여 상기 폴리실리콘막을 식각하는 단계를 포함하여 이루어진 트랜지스터의 게이트 전극 형성방법.
- 제1항에 있어서, 상기 제1박막은 질화막인 것을 특징으로 하는 트랜지스터의 게이트 전극 형성방법.
- 제1항에 있어서, 상기 제2박막은 화학기상증착법에 의한 산화막 또는 질화막인 것을 특징으로 하는 트랜지스터의 게이트 전극 형성방법.
- 제1항에 있어서, 상기 금속막은 티타늄, 탄탈늄 및 몰리브덴중 어는 하나인 것을 특징으로 하는 트랜지스터의 게이트 전극 형성방법.
- 제1항에 있어서, 상기 금속막은 텅스텐(W)막인 것을 특징으로 하는 트랜지스터의 게이트 전극 형성방법.
- 제5항에 있어서, 상기 금속막은 형성후 과다한 텅스텐막은 황산(H2SO4)과 과산화수소(H2O2)의 혼합액에서 제거하는 것을 특징으로 하는 트랜지스터의 게이트 전극 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940028658A KR0147775B1 (ko) | 1994-11-02 | 1994-11-02 | 트랜지스터의 게이트 전극 형성 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940028658A KR0147775B1 (ko) | 1994-11-02 | 1994-11-02 | 트랜지스터의 게이트 전극 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960019605A KR960019605A (ko) | 1996-06-17 |
KR0147775B1 true KR0147775B1 (ko) | 1998-11-02 |
Family
ID=19396925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940028658A KR0147775B1 (ko) | 1994-11-02 | 1994-11-02 | 트랜지스터의 게이트 전극 형성 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0147775B1 (ko) |
-
1994
- 1994-11-02 KR KR1019940028658A patent/KR0147775B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR960019605A (ko) | 1996-06-17 |
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