KR100301803B1 - 박막트랜지스터 및 그의 제조방법 - Google Patents
박막트랜지스터 및 그의 제조방법 Download PDFInfo
- Publication number
- KR100301803B1 KR100301803B1 KR1019980020848A KR19980020848A KR100301803B1 KR 100301803 B1 KR100301803 B1 KR 100301803B1 KR 1019980020848 A KR1019980020848 A KR 1019980020848A KR 19980020848 A KR19980020848 A KR 19980020848A KR 100301803 B1 KR100301803 B1 KR 100301803B1
- Authority
- KR
- South Korea
- Prior art keywords
- semiconductor layer
- conductive material
- gate electrode
- insulating film
- gate insulating
- 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
- 239000010409 thin film Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000005530 etching Methods 0.000 claims abstract description 35
- 239000004065 semiconductor Substances 0.000 claims abstract description 33
- 239000010408 film Substances 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims description 59
- 238000000034 method Methods 0.000 abstract description 20
- 229910021417 amorphous silicon Inorganic materials 0.000 description 40
- 239000011651 chromium Substances 0.000 description 32
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 27
- 229910052804 chromium Inorganic materials 0.000 description 25
- 239000007789 gas Substances 0.000 description 23
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 22
- 229910052750 molybdenum Inorganic materials 0.000 description 22
- 239000011733 molybdenum Substances 0.000 description 22
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- 239000000460 chlorine Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 7
- 239000007772 electrode material Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000000059 patterning Methods 0.000 description 3
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
-
- 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]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0312—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes
- H10D30/0316—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes of lateral bottom-gate TFTs comprising only a single gate
-
- 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]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0321—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6704—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device
- H10D30/6713—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device characterised by the properties of the source or drain regions, e.g. compositions or sectional shapes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/978—Semiconductor device manufacturing: process forming tapered edges on substrate or adjacent layers
Landscapes
- Thin Film Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (3)
- 기판;상기 기판상에 형성된 게이트전극;상기 게이트전극을 포함한 상기 기판 전면에 형성된 게이트절연막;상기 게이트절연막상에 형성된 제 1 반도체층;상기 제 1 반도체층상에 형성된 제 2 반도체층;상기 게이트전극 상측의 상기 제 2 반도체층의 표면이 노출되도록 상기 제 2 반도체층상에서 소오스 및 드레인전극이 분리 형성되고, 상기 제 2 반도체층의 노출된 부위에 인접하는 상기 소오스 및 드레인전극의 에지부위는 계단형상의 비선형적인 기울기를 갖는 것을 특징으로 하는 박막트랜지스터.
- 기판;상기 기판상에 형성된 사다리꼴 모양의 게이트전극;상기 게이트전극을 포함한 상기 기판상에 형성된 게이트절연막;상기 게이트절연막상에 형성된 제 1 반도체층;상기 게이트전극 상측의 상기 제 1 반도체층상에서 분리형성된 제 2 반도체층;상기 제 2 반도체층상에 형성된 제 1 도전성물질;에지부위에 상응하는 상기 제 1 도전성물질의 상부가 노출되어 에지부위가 서로 일치하지 않도록 상기 제 1 도전성물질상에 형성되는 제 2 도전성물질을 포함하여 구성되는 것을 특징으로 하는 박막트랜지스터.
- 기판상에 사다리꼴 모양의 게이트전극을 형성하는 공정;상기 게이트전극을 포함한 기판 전면에 게이트절연막을 형성하는 공정;상기 게이트절연막상에 제 1 반도체층을 형성하는 공정;상기 제 1 반도체층상에 제 2 반도체층을 형성하는 공정;상기 제 2 반도체층상에 제 1 도전성물질과 제 2 도전성물질을 적층형성하는 공정;상기 게이트전극 상측의 상기 제 2 반도체층의 소정부위가 노출되도록 상기 제 1 도전성물질과 상기 제 2 도전성물질을 동일한 식각가스로 연속식각하여 상기 식각되어진 제 1, 제 2 도전성물질의 에지부위가 비선형적인 기울기를 갖도록하는 공정을 포함하여 이루어지는 것을 특징으로 하는 박막트랜지스터 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980020848A KR100301803B1 (ko) | 1998-06-05 | 1998-06-05 | 박막트랜지스터 및 그의 제조방법 |
TW087112416A TW571443B (en) | 1998-06-05 | 1998-07-29 | Thin film transistor and method of fabricating the same |
JP10358628A JP3133987B2 (ja) | 1998-06-05 | 1998-12-17 | 薄膜トランジスタ及びその製造方法 |
DE19916073A DE19916073B4 (de) | 1998-06-05 | 1999-04-09 | Dünnfilmtransistor und Verfahren zu seiner Herstellung |
US09/317,952 US6255668B1 (en) | 1998-06-05 | 1999-05-25 | Thin film transistor with inclined eletrode side surfaces |
US09/810,232 US6455357B2 (en) | 1998-06-05 | 2001-03-19 | Thin film transistor and method of fabricating the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980020848A KR100301803B1 (ko) | 1998-06-05 | 1998-06-05 | 박막트랜지스터 및 그의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000000907A KR20000000907A (ko) | 2000-01-15 |
KR100301803B1 true KR100301803B1 (ko) | 2001-09-22 |
Family
ID=19538443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980020848A Expired - Lifetime KR100301803B1 (ko) | 1998-06-05 | 1998-06-05 | 박막트랜지스터 및 그의 제조방법 |
Country Status (5)
Country | Link |
---|---|
US (2) | US6255668B1 (ko) |
JP (1) | JP3133987B2 (ko) |
KR (1) | KR100301803B1 (ko) |
DE (1) | DE19916073B4 (ko) |
TW (1) | TW571443B (ko) |
Cited By (1)
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US9397194B2 (en) | 2008-09-01 | 2016-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device with oxide semiconductor ohmic conatct layers |
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US6218219B1 (en) * | 1997-09-29 | 2001-04-17 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and fabrication method thereof |
KR100301803B1 (ko) * | 1998-06-05 | 2001-09-22 | 김영환 | 박막트랜지스터 및 그의 제조방법 |
KR100333274B1 (ko) * | 1998-11-24 | 2002-04-24 | 구본준, 론 위라하디락사 | 액정표시장치 및 그 제조방법 |
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JPH0224631A (ja) * | 1988-07-13 | 1990-01-26 | Seikosha Co Ltd | 薄膜トランジスタアレイ |
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1998
- 1998-06-05 KR KR1019980020848A patent/KR100301803B1/ko not_active Expired - Lifetime
- 1998-07-29 TW TW087112416A patent/TW571443B/zh not_active IP Right Cessation
- 1998-12-17 JP JP10358628A patent/JP3133987B2/ja not_active Expired - Fee Related
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1999
- 1999-04-09 DE DE19916073A patent/DE19916073B4/de not_active Expired - Lifetime
- 1999-05-25 US US09/317,952 patent/US6255668B1/en not_active Expired - Lifetime
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2001
- 2001-03-19 US US09/810,232 patent/US6455357B2/en not_active Expired - Fee Related
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US5362660A (en) * | 1990-10-05 | 1994-11-08 | General Electric Company | Method of making a thin film transistor structure with improved source/drain contacts |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9397194B2 (en) | 2008-09-01 | 2016-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device with oxide semiconductor ohmic conatct layers |
US10128381B2 (en) | 2008-09-01 | 2018-11-13 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device with oxygen rich gate insulating layer |
Also Published As
Publication number | Publication date |
---|---|
TW571443B (en) | 2004-01-11 |
US20010010953A1 (en) | 2001-08-02 |
DE19916073B4 (de) | 2006-07-27 |
KR20000000907A (ko) | 2000-01-15 |
JPH11354812A (ja) | 1999-12-24 |
US6255668B1 (en) | 2001-07-03 |
DE19916073A1 (de) | 1999-12-16 |
JP3133987B2 (ja) | 2001-02-13 |
US6455357B2 (en) | 2002-09-24 |
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