KR20030028077A - 박막트랜지스터의 제조방법 - Google Patents
박막트랜지스터의 제조방법 Download PDFInfo
- Publication number
- KR20030028077A KR20030028077A KR1020010060004A KR20010060004A KR20030028077A KR 20030028077 A KR20030028077 A KR 20030028077A KR 1020010060004 A KR1020010060004 A KR 1020010060004A KR 20010060004 A KR20010060004 A KR 20010060004A KR 20030028077 A KR20030028077 A KR 20030028077A
- Authority
- KR
- South Korea
- Prior art keywords
- gate
- thin film
- film
- oxide film
- layer
- 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.)
- Ceased
Links
- 239000010409 thin film Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 20
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 13
- 150000002500 ions Chemical class 0.000 claims abstract description 11
- 229920005591 polysilicon Polymers 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000010408 film Substances 0.000 claims description 56
- 238000005530 etching Methods 0.000 claims description 18
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- 238000005468 ion implantation Methods 0.000 claims description 5
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims description 2
- BEQNOZDXPONEMR-UHFFFAOYSA-N cadmium;oxotin Chemical compound [Cd].[Sn]=O BEQNOZDXPONEMR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910003437 indium oxide Inorganic materials 0.000 claims description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- KYKLWYKWCAYAJY-UHFFFAOYSA-N oxotin;zinc Chemical compound [Zn].[Sn]=O KYKLWYKWCAYAJY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 2
- 229910001887 tin oxide Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000206 photolithography Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005224 laser annealing Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
-
- 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]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (5)
- 글래스 기판 상에 완충막과 비정질 실리콘 박막을 차례로 증착한 다음 활성층을 형성하고 상기 활성층상에 게이트 제 1 절연막, 게이트막 및 게이트 보조막을 형성하고 불순물 이온주입을 실시하여 소오스영역과 드레인영역 및 채널을 형성한 후 상기 게이트 보조막은 제거하고 비정질화부분은 열처리하여 결정화하고 게이트 제 2 절연막을 증착하고 상기 게이트 제 2 절연막을 사진식각하여 제 1 콘택홀을 형성하며 상기 제 1 콘택홀상에 소오스전극과 드레인전극을 형성하고 상기 소오스전극과 드레인전극을 포함하여 노출된 전면에 게이트 제 3 절연막을 증착한 다음 제 2 콘택홀을 형성하여 드레인전극에 연결되는 화소전극을 형성하는 단계를 포함하는 P채널 트랜지스터와 N채널 트랜지스터를 함께 구비하여 사용하는 폴리실리콘형 박막트랜지스터 액정표시 장치의 N채널 박막트랜지스터 제조방법에 있어서,상기 게이트 보조막을 게이트 식각 마스크로 하여 게이트막을 식각선택비가 큰 식각물질을 사용하여 등방성 식각을 하여 게이트 패턴의 폭이 상기 게이트 보조막 보다 좁게 형성하는 것을 특징으로 하는 박막트랜지스터 제조방법.
- 제 1항에 있어서, 상기 비정질 실리콘은 순차적인 횡방향 결정화(SLS, Sequential lateral solidification) 방법을 사용하여 결정화하는 것을 특징으로 하는 박막트랜지스터 제조방법.
- 제 1항에 있어서, 상기 게이트 보조막은 크롬으로 형성하는 것을 특징으로 하는 박막트랜지스터 제조방법.
- 제 1항에 있어서, 상기 이온주입은 포스포러스(P) 이온을 60∼100keV의 가속에너지와 1×1015∼5×1015/cm2의 도즈량으로 주입하는 것을 특징으로 하는 박막트랜지스터 제조방법.
- 제 1항에 있어서, 상기 화소전극은 인듐산화막(In2O3), 주석산화막(Sn2O), 인듐주석산화막(In2O3/Sn doped), 카드뮴산화막(CdO), 아연산화막(ZnO), 카드뮴주석산화막(Cd2SnO4), 아연주석산화막(Zn2SnO4), 카드뮴 산화막(CdO) 중의 어느 하나 또는 여러 가지로 형성하며, 바람직하게는 인듐주석산화막으로 형성하는 것을 특징으로 하는 박막트랜지스터 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010060004A KR20030028077A (ko) | 2001-09-27 | 2001-09-27 | 박막트랜지스터의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010060004A KR20030028077A (ko) | 2001-09-27 | 2001-09-27 | 박막트랜지스터의 제조방법 |
Publications (1)
Publication Number | Publication Date |
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KR20030028077A true KR20030028077A (ko) | 2003-04-08 |
Family
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Family Applications (1)
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KR1020010060004A Ceased KR20030028077A (ko) | 2001-09-27 | 2001-09-27 | 박막트랜지스터의 제조방법 |
Country Status (1)
Country | Link |
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KR (1) | KR20030028077A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100812321B1 (ko) * | 2005-05-23 | 2008-03-10 | 미쓰비시덴키 가부시키가이샤 | 액정표시장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980041087A (ko) * | 1996-11-30 | 1998-08-17 | 엄길용 | 박막 트랜지스터 액정표시장치의 박막 트랜지스터 제조방법 |
KR19990015854A (ko) * | 1997-08-11 | 1999-03-05 | 구자홍 | 박막트랜지스터의 제조방법 |
KR20000032041A (ko) * | 1998-11-12 | 2000-06-05 | 윤종용 | 박막 트랜지스터 액정 표시 장치의 제조 방법 |
KR20000041547A (ko) * | 1998-12-23 | 2000-07-15 | 김영환 | 액정표시장치의 폴리실리콘-박막트랜지스터의 제조방법 |
-
2001
- 2001-09-27 KR KR1020010060004A patent/KR20030028077A/ko not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980041087A (ko) * | 1996-11-30 | 1998-08-17 | 엄길용 | 박막 트랜지스터 액정표시장치의 박막 트랜지스터 제조방법 |
KR19990015854A (ko) * | 1997-08-11 | 1999-03-05 | 구자홍 | 박막트랜지스터의 제조방법 |
KR20000032041A (ko) * | 1998-11-12 | 2000-06-05 | 윤종용 | 박막 트랜지스터 액정 표시 장치의 제조 방법 |
KR20000041547A (ko) * | 1998-12-23 | 2000-07-15 | 김영환 | 액정표시장치의 폴리실리콘-박막트랜지스터의 제조방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100812321B1 (ko) * | 2005-05-23 | 2008-03-10 | 미쓰비시덴키 가부시키가이샤 | 액정표시장치 |
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