KR970022416A - Manufacturing method of liquid crystal display device - Google Patents

Manufacturing method of liquid crystal display device Download PDF

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Publication number
KR970022416A
KR970022416A KR1019950036365A KR19950036365A KR970022416A KR 970022416 A KR970022416 A KR 970022416A KR 1019950036365 A KR1019950036365 A KR 1019950036365A KR 19950036365 A KR19950036365 A KR 19950036365A KR 970022416 A KR970022416 A KR 970022416A
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KR
South Korea
Prior art keywords
forming
photoresist
layer
gate insulating
opaque layer
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Application number
KR1019950036365A
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Korean (ko)
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KR0156179B1 (en
Inventor
김홍규
한경섭
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구자홍
Lg 전자 주식회사
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Priority to KR1019950036365A priority Critical patent/KR0156179B1/en
Publication of KR970022416A publication Critical patent/KR970022416A/en
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Publication of KR0156179B1 publication Critical patent/KR0156179B1/en

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements

Abstract

본 발명은 액정표시 소자에 관한 것으로, 특히, 프로잭션 정렬기를 이용한 패터닝시에 이용되는 불투명층을 기판의 후면 (Back side)에 형성하지 않고, 전면 (Front side) 에지 (Edge)부분에 형성하여 각층의 패터닝, 에칭 등의 공정을 수행하여 전면에 스크래치, 파티클 등의 결함발생을 막고, 특히, 게이트 절연막을 형성한 후에 활성층을 패터닝 하기 때문에 활성층의 오염을 방지하고, 활성층과 게이트 절연막의 계면특성을 좋게 하여 수율향상 및 소자의 특성을 향상시키고, 공정을 단순화하는데 적당하도록 한 액정표시 소자의 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device. In particular, an opaque layer used for patterning using a projection aligner is formed on a front side edge part without forming a back side of a substrate. Patterning and etching of each layer are performed to prevent scratches, particles, and other defects on the entire surface, and in particular, the active layer is patterned after the gate insulating film is formed, thereby preventing contamination of the active layer and interfacial characteristics between the active layer and the gate insulating film. The present invention relates to a method for manufacturing a liquid crystal display device which improves the yield, improves the characteristics of the device, and is suitable for simplifying the process.

Description

액정표시 소자의 제조방법Manufacturing method of liquid crystal display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도(a) 내지 (h)는 본 발명의 액정표시 소자의 공정단면도,2 (a) to (h) are process cross-sectional views of the liquid crystal display device of the present invention;

제3도(a) 내지 (i)는 본 발명의 액정표시 소자의 다른 실시예를 나타낸 공정단면도.3A to 3I are cross-sectional views showing another embodiment of the liquid crystal display device of the present invention.

Claims (7)

투명 절연기판의 전면에 다결정 실리콘층, 게이트 절연막층을 차례로 형성하고, 상기 게이트 절연막층상에 불투명층을 형성한 후 기판의 에지 (Edge)부분에만 남도록 식각하는 공정과, 기판전면에 포토 레지스트를 증착하여 액티브 영역의 상측에만 남도록 패터닝 한 후, 상기 패터닝 되어진 포토 레지스트를 마스크로 산소이온을 주입하는 공정과, 상기 마스크로 이용된 포토 레지스트를 제거하고 채널영역의 게이트 절연막상에 게이트 전극을 형성하는 공정과, 상기 게이트 전극을 마스크로 하여 활성영역의 다결정 실리콘층에 볼순물 이온을 주입하여 소오스/드레인 영역을 형성하는 공정과, 기판전면에 제1층간 절연막을 형성하고, 소오스 영역상의 제1층간 절연막, 게이트 절연막을 차례대로 일정영역 제거하여 콘택홀을 형성하는 공정과, 상기 콘택홀에 금속 전극을 형성하고, 전면에 제2층간 절연막을 형성하는 공정과, 드레인 영역상의 제2층간 절연막, 제1층간 절연막, 게이트 절연막을 차례대로 일정영역 식각하여 화소전극용 콘택홀을 형성하는 공정과, 상기 화소전극용 콘택홀에 화소전극을 형성하고 전면에 보호막을 형성하는 공정을 포함하여 이루어짐을 특징으로 하는 액정표시 소자의 제조방법.Forming a polycrystalline silicon layer and a gate insulating layer on the front surface of the transparent insulating substrate in order, forming an opaque layer on the gate insulating layer, and etching the same to remain only at the edge of the substrate; and depositing photoresist on the entire surface of the substrate. Patterning the patterned photoresist so as to remain only in the upper side of the active region, implanting oxygen ions into the mask using the patterned photoresist, and removing the photoresist used as the mask and forming a gate electrode on the gate insulating layer of the channel region. And forming a source / drain region by implanting ball pure ions into the polycrystalline silicon layer of the active region using the gate electrode as a mask, and forming a first interlayer insulating layer on the entire surface of the substrate, and forming a first interlayer insulating layer on the source region. Forming a contact hole by sequentially removing a predetermined region of the gate insulating film; Forming a metal electrode on the entire surface, and forming a second interlayer insulating film on the entire surface, and forming a contact hole for the pixel electrode by sequentially etching a second region of the second interlayer insulating film, the first interlayer insulating film, and the gate insulating film on the drain region. And forming a pixel electrode in the contact hole for the pixel electrode and forming a protective film on the front surface thereof. 제1항에 있어서, 불투명층은 상기 게이트 절연막층상에 포토 레지스트를 도포하여 에지 (Edge)부분만 제거되도록 패터닝하는 공정과, 상기 포토 레지스트를 포함하여 절연기판의 전면에 불투명층을 증착하는 공정과, 상기 포토 레지스트 및 포토 레지스트 상측의 불투명층을 제거하는 공정을 포함하여 이루어짐을 특징으로 하는 액정표시 소자의 제조방법.The method of claim 1, wherein the opaque layer is formed by applying a photoresist on the gate insulating layer so as to remove only an edge portion, and depositing an opaque layer on the entire surface of the insulating substrate including the photoresist; And removing the photoresist and the opaque layer on the upper side of the photoresist. 제1항 또는 제2항에 있어서, 불투명층은 Cr또는 WSi또는 TiW등을 증착하여 이루어짐을 특징으로 하는 액정표시 소자의 제조방법.The method for manufacturing a liquid crystal display device according to claim 1 or 2, wherein the opaque layer is formed by depositing Cr, WSi, TiW, or the like. 제1항 또는 제2항에 있어서, 불투명층이 형성되는 에지부분의 폭이 5-8mm가 되도록 함을 특징으로 하는 액정표시 소자의 제조방법.The method for manufacturing a liquid crystal display device according to claim 1 or 2, wherein the width of the edge portion where the opaque layer is formed is 5-8 mm. 제2항에 있어서, 포토 레지스트층의 두께가 1.5-3㎛가 되도록 함을 특징으로 하는 액정표시 소자의 제조방법.The method of claim 2, wherein the thickness of the photoresist layer is 1.5-3 μm. 제2항에 있어서, 불투명층은 1000-2500Å의 두께로 형성함을 특징으로 하는 액정표시 소자의 제조방법.The method of claim 2, wherein the opaque layer is formed to a thickness of 1000-2500 kPa. 제2항에 있어서, 포토 레지스트 밋 포토 레지스트 상측의 불투명층을 습식식각으로 제거함을 특징으로 하는 액정표시 소자의 제조방법.The method of claim 2, wherein the opaque layer on the photoresist photoresist is removed by wet etching. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036365A 1995-10-20 1995-10-20 Method for producing lcd device KR0156179B1 (en)

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KR1019950036365A KR0156179B1 (en) 1995-10-20 1995-10-20 Method for producing lcd device

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KR1019950036365A KR0156179B1 (en) 1995-10-20 1995-10-20 Method for producing lcd device

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KR970022416A true KR970022416A (en) 1997-05-28
KR0156179B1 KR0156179B1 (en) 1998-11-16

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KR100905051B1 (en) * 2003-02-11 2009-06-30 엘지디스플레이 주식회사 Array panel for liquid crystal displays and manufacturing method of the same

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