KR100663290B1 - 박막트랜지스터-액정표시장치의 제조방법 - Google Patents
박막트랜지스터-액정표시장치의 제조방법 Download PDFInfo
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- KR100663290B1 KR100663290B1 KR1020000073311A KR20000073311A KR100663290B1 KR 100663290 B1 KR100663290 B1 KR 100663290B1 KR 1020000073311 A KR1020000073311 A KR 1020000073311A KR 20000073311 A KR20000073311 A KR 20000073311A KR 100663290 B1 KR100663290 B1 KR 100663290B1
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- 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
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- 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
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
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- 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
- G02F1/136231—Active matrix addressed cells for reducing the number of lithographic steps
- G02F1/136236—Active matrix addressed cells for reducing the number of lithographic steps using a grey or half tone lithographic process
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- 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)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
본 발명에 따르면 상기 IXO층과 상기 게이트금속층을 위한 마스크는 하프-톤(Half tone)마스크로 이루어진다.
상기 게이트를 형성하기 위한 상기 게이트금속층은 단층구조의 Al으로 형성되거나 다층구조의 Al로 형성된다.
상기 소오스/드레인전극은 Al으로 형성되고, 상기 상부전극은 IXO로 형성된다.
상기 IXO층을 에칭하기 위한 에칭제로서 옥살산을 포함하는 약산이 사용된다.
본 발명에 따르면, 투명한 기판 상에 IXO층으로 이루어진 하부전극과 Al로 이루어진 게이트가 하프-톤마스킹 기술에 의해 형성됨에 따라 그 전체적인 마스크 공정수의 단축이 달성되고, 상기 IXO층의 에칭이 옥살산을 포함하는 약산에 의해 이루어지므로, 게이트금속층에 대한 악영향이 방지된다.
(실시예)
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명하도록 한다.
Claims (6)
- 투명한 기판 상에 공통전극으로서의 하부금속과 그 하부금속 상측에 형성되는 화소전극으로서의 상부금속을 갖추어 구성된 FFS모드(Fringe Field Mode)의 박막트랜지스터-액정표시장치의 제조방법에 있어서,상기 투명한 기판 상에 IXO층과 게이트금속층을 적층하는 단계;상기 IXO층과 게이트금속층을 단일의 마스크로 마스킹하는 단계;상기 게이트금속층과 IXO층을 패터닝하여 상기 IXO층으로 이루어진 하부전극을 형성하는 단계;상기 게이트금속층을 에칭처리하여 게이트를 형성하는 단계; 및상기 게이트가 형성된 기판 결과물 상에 액티브층과 소오스/드레인전극, 보호층 및 상부전극을 순차적으로 형성하는 단계;를 포함하는 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
- 제 1항에 있어서, 상기 IXO층과 상기 게이트금속층을 위한 마스크는 하프-톤(Half tone)마스크인 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
- 제 1항에 있어서, 상기 게이트를 형성하기 위한 상기 게이트금속층은 단층구조의 Al으로 형성되는 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
- 제 1항에 있어서, 상기 게이트를 형성하기 위한 상기 게이트금속층은 다층구조의 Al으로 형성되는 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
- 제 1항에 있어서, 상기 소오스/드레인전극은 Al으로 형성되고, 상기 상부화소전극은 IXO로 형성되는 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
- 제 1항 내지 제 5항중 어느 한항에 있어서, 상기 IXO층을 에칭하기 위한 에칭제로서 옥살산을 포함하는 약산이 사용되는 것을 특징으로 하는 박막트랜지스터-액정표시장치의 제조방법.
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KR1020000073311A KR100663290B1 (ko) | 2000-12-05 | 2000-12-05 | 박막트랜지스터-액정표시장치의 제조방법 |
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KR1020000073311A KR100663290B1 (ko) | 2000-12-05 | 2000-12-05 | 박막트랜지스터-액정표시장치의 제조방법 |
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KR20020044286A KR20020044286A (ko) | 2002-06-15 |
KR100663290B1 true KR100663290B1 (ko) | 2007-01-02 |
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KR100891997B1 (ko) * | 2002-11-20 | 2009-04-07 | 하이디스 테크놀로지 주식회사 | 프린지 필드 스위칭 액정표시장치의 제조방법 |
KR100744396B1 (ko) * | 2006-04-10 | 2007-07-30 | 비오이 하이디스 테크놀로지 주식회사 | 액정표시장치의 어레이기판의 제조방법 |
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