KR970076026A - Manufacturing method of liquid crystal display device - Google Patents

Manufacturing method of liquid crystal display device Download PDF

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KR970076026A
KR970076026A KR1019960014284A KR19960014284A KR970076026A KR 970076026 A KR970076026 A KR 970076026A KR 1019960014284 A KR1019960014284 A KR 1019960014284A KR 19960014284 A KR19960014284 A KR 19960014284A KR 970076026 A KR970076026 A KR 970076026A
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forming
insulating film
drain region
gate electrode
active layer
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KR100192886B1 (en
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김홍규
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구자홍
Lg 전자 주식회사
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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
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136227Through-hole connection of the pixel electrode to the active element through an insulation layer
    • 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
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/13439Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136213Storage capacitors associated with the pixel electrode
    • 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
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/1368Active matrix addressed cells in which the switching element is a three-electrode device

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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)
  • Power Engineering (AREA)
  • Thin Film Transistor (AREA)

Abstract

액정표시장치의 제조방법이 개시된바, 화소전극으로 사용되고 있는 ITO와 TFT의 드레인영역과의 컨텍저항 문제를 해결하기 위한 제조방법에 따르면 절연성 투명기판위에 활성층을 형성하는 단계; 상기 활성층상에 포토레지스트를 형성하여 패터닝을 한 후 불순물을 이온 주입하는 단계; 상기 포토레지트를 제거하고 게이트절연막을 형성하는 단계; 상기 게이트절연막위에 다수개의 도전층을 형성하는 단계; 상기 활성층내에 이온주입을 하여 소오스 영역 및 드레인영역을 형성하는 단계; 기판 전면에 제1층간 절연막을 형성하는 단계; 상기 소오스영역과 드레인영역의 상부 및 상기의 일 도전층상에 제1층간 절연막을 일부 제거하고 다수개의 제1컨텍홀을 형성하는 단계; 상기 다수개의 제1컨택홀상에 메탈을 증착하여 상기 드레인영역과 소오스영역 및 상기 다수개의 도전층을 연결시켜주는 금속배선을 형성하는 단계; 상기 형성된 메탈층위에 제2층간 절연막을 형성하는 단계; 상기 일 도전층 위에 제2컨텍홀을 형성하는 단계; 상기 제2층간 절연막 상부에 상기 컨텍홀을 통해 드레인영역과 연결된 게이트전극과 접속되는 화소전극을 형성하는 단계; 상기 화소전극 상부에 보호막을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 액정표시장치의 제조방법을 제공하는 것이다.According to the manufacturing method for solving the contact resistance problem between the ITO used as the pixel electrode and the drain region of the TFT, a method of manufacturing a liquid crystal display device includes: forming an active layer on an insulating transparent substrate; Forming a photoresist on the active layer, performing patterning, and ion-implanting impurities; Removing the photoresist and forming a gate insulating film; Forming a plurality of conductive layers on the gate insulating layer; Implanting ions into the active layer to form a source region and a drain region; Forming a first interlayer insulating film on the entire surface of the substrate; Removing a portion of the first interlayer insulating film on the source region, the drain region, and the one conductive layer to form a plurality of first contact holes; Depositing a metal on the plurality of first contact holes to form a metal wiring for connecting the drain region to the source region and the plurality of conductive layers; Forming a second interlayer insulating film on the formed metal layer; Forming a second contact hole on the one conductive layer; Forming a pixel electrode connected to the gate electrode connected to the drain region through the contact hole on the second interlayer insulating film; And forming a protective film on the pixel electrode. [7] The method of manufacturing a liquid crystal display device according to claim 7,

Description

액정표시장치의 제조방법Manufacturing method of liquid crystal display device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제4도는 본 발명의 제1실시예에 따른 액정표시장치의 화소부 레이아웃을 보여주는 도면, 제5도 (A) 내지 (H)는 제3도의 B-B′선 단면도로서, 액정표시장치 제조방법에 대한 공정 순서를 보여주는 도면.FIG. 4 is a cross-sectional view taken along line BB 'of FIG. 3 (A) to FIG. 5 (H) showing a pixel portion layout of a liquid crystal display device according to a first embodiment of the present invention. Drawing showing process sequence.

Claims (13)

절연성 투명기판위에 활성층을 형성하는 단계; 상기 활성층상에 포토레지스트를 증착하여 패터닝을 한후 불순물을 이온 주입하는 단계; 상기 포토 레지스트를 제거하고 게이트절연막을 형성하는 단계; 상기 게이트 절연막위에 제1, 2, 3도전층을 형성하는 단계; 상기 활성층내에 이온주입을 하여 소오스 영역 및 드레인영역을 형성하는 단계; 기판 전면에 제1층간 절연막을 형성하는 단계; 상기 소오스영역과 드레인영역의 상부 및 상기의 일 게이트 전극물질상에 제1층간 절연막을 일부 제거하고 다수개의 제1컨텍홀을 형성하는 단계; 상기 다수개의 제1컨텍홀상에 메탈을 증착하여 상기 소오스영역과 접하여 데이터라인을 형성하는 금속배선과, 상기 드레인영역과 일 게이트 전극물질을 연결시켜주는 금속배선을 형성하는 단계; 상기 형성된 메탈층위에 제2층간 절연막을 형성하는 단계; 상기 일 게이트 전극물질위에 제2컨텍홀을 형성하는 단계; 상기 제2층간 절연막 상부에 상기 컨텍홀을 통해 드레인 영역과 연결된 게이트전극과 접속되는 화소전극을 형성하는 단계; 상기 화소전극 상부에 보호막을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 액정표시장치의 제조방법.Forming an active layer on the insulating transparent substrate; Depositing a photoresist on the active layer, patterning and implanting impurities; Removing the photoresist and forming a gate insulating film; Forming first, second, and third conductive layers on the gate insulating layer; Implanting ions into the active layer to form a source region and a drain region; Forming a first interlayer insulating film on the entire surface of the substrate; Forming a plurality of first contact holes by partially removing the first interlayer insulating film on the source region and the drain region and on the one gate electrode material; Depositing a metal on the plurality of first contact holes to form a data line in contact with the source region, and forming a metal wiring line connecting the drain region and the gate electrode material; Forming a second interlayer insulating film on the formed metal layer; Forming a second contact hole on the one gate electrode material; Forming a pixel electrode connected to the gate electrode connected to the drain region through the contact hole on the second interlayer insulating film; And forming a passivation layer on the pixel electrode. 제1항 있어서, 상기 제1도전층은 게이트 전극임을 특징으로 하는 액정표시장치의 제조방법.The method of claim 1, wherein the first conductive layer is a gate electrode. 제1항에 있어서, 상기 제2도전층은 스토리지 캐패시터의 상부전극라인 임을 특징으로 하는 액정표시장치의 제조방법.The method of claim 1, wherein the second conductive layer is an upper electrode line of the storage capacitor. 제1항에 있어서, 상기 제3도전층은 TFT의 드레인영역과 화소전극과의 연결라인임을 특징으로 하는 액정표시장치의 제조방법.The method of claim 1, wherein the third conductive layer is a connection line between the drain region of the TFT and the pixel electrode. 절연성 투명기판위에 활성층을 형성하는 단계; 상기 활성층상에 포토 레지스트를 증착하여 패터닝을 한후 불순물을 이온 주입하는 단계; 상기 포토 레지스트를 제거하고 상기 활성층상에 게이트절연막을 형성하는 단계; 상기 게이트 절연막을 선택적으로 식각하여 상기 활성층의 소정영역을 노출시키는 제3컨텍홀을 형성하는 단계; 상기 제3컨텍홀 및 게이트절연막상에 제1, 2, 3도전층을 형성하는 단계; 상기 활성층내애 불순물 이온주입을 하여 소오스영역 및 드레인영역을 형성하는 단계; 기판전면에 제1층간 절연막을 형성하는 단계; 상기 게이트 절연막 및 제1층간 절연막의 일부분을 제거하고 제1컨텍홀을 형성하는 단계; 상기 제1컨택홀상에 메탈을 증착하여 상기 소오스영역과 접하여 데이터라인을 형성하는 금속배선과, 상기 드레인영역과 일 게이트 전극 물질을 연결시켜주는 금속배선을 형성하는 단계; 상기 형성된 메탈층위에 제2층간 절연막을 형성하는 단계; 상기 일 게이트 전극물질 위에 제2컨택홀을 형성하는 단계; 상기 제2층간 절연막 상부에 상기 컨텍홀을 통해 드레인 영역과 연결된 게이트전극과 접속되는 화소전극을 형성하는 단계; 상기 화소전극 상부에 보호막을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 액정표시장치의 제조방법.Forming an active layer on the insulating transparent substrate; Depositing a photoresist on the active layer, patterning and implanting impurities; Removing the photoresist and forming a gate insulating film on the active layer; Forming a third contact hole exposing a predetermined region of the active layer by selectively etching the gate insulating film; Forming first, second and third conductive layers on the third contact hole and the gate insulating film; Implanting impurity ions into the active layer to form a source region and a drain region; Forming a first interlayer insulating film on the entire surface of the substrate; Removing a portion of the gate insulating film and the first interlayer insulating film to form a first contact hole; Depositing a metal on the first contact hole to form a data line in contact with the source region; and forming a metal interconnection connecting the drain region and the gate electrode material. Forming a second interlayer insulating film on the formed metal layer; Forming a second contact hole on the one gate electrode material; Forming a pixel electrode connected to the gate electrode connected to the drain region through the contact hole on the second interlayer insulating film; And forming a passivation layer on the pixel electrode. 제5항에 있어서, 상기 제1도전층은 게이트 전극라인 임을 특징으로 하는 액정표시장치의 제조방법.6. The method of claim 5, wherein the first conductive layer is a gate electrode line. 제5항에 있어서, 상기 제1도전층은 스토리지 캐패시터의 상부전극라인 임을 특징으로 하는 액정포시장치의 제조방법.6. The method of claim 5, wherein the first conductive layer is an upper electrode line of the storage capacitor. 제5항에 있어서, 상기 제3게이트 전극물질을 TFT의 드레인영역과 화소전극과의 연결라인 임을 특징으로 하는 액정표시장치의 제조방법.6. The method of claim 5, wherein the third gate electrode material is a connection line between the drain region of the TFT and the pixel electrode. 절연성 투명기판위에 활성층을 형성하는 단계; 상기 활성층상에 포토레지스트를 형성하여 패터닝을 한 후 불순물을 이온 주입하는 단계; 상기 포토레지스트를 제거하고, 상기 활성층상에 게이트 절연막을 형성하는 단계; 상기 게이트 절연막의 일부분을 선택적으로 식각하여 상기 활성층의 소정영역을 노출시키는 복수개의 제3컨텍홀을 형성하는 단계; 상기 제3컨텍홀 및 게이트절연막상에 제1, 2, 3, 4도전층을 형성하는 단계; 상기 활성층내에 불순물 이온주입을 하여 소오스영역 및 드레인영역을 형성하는 단계; 기판전면에 제1층간 절연막을 형성하는 단계; 상기 게이트 절연막 및 제1층간 절연막의 일부분을 제거하고 제1컨택홀을 형성하는 단계; 상기 제1컨텍홀상에 메탈을 증착하여 금속배선을 형성하는 단계; 상기 형성된 메탈층위에 제2층간 절연막을 형성하는 단계; 상기 일 게이트 전극물질 위에 제2컨택홀을 형성하는 단계; 상기 제2층간 절연막 상부에 상기 컨택홀을 통해 드레인 영역과 연결된 게이트전극과 접속되는 화소전극을 형성하는 단계; 상기 화소전극 상부에 보호막을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 액정표시장치의 제조방법.Forming an active layer on the insulating transparent substrate; Forming a photoresist on the active layer, performing patterning, and ion-implanting impurities; Removing the photoresist and forming a gate insulating film on the active layer; Forming a plurality of third contact holes exposing a predetermined region of the active layer by selectively etching a part of the gate insulating film; Forming first, second, third, and fourth conductive layers on the third contact hole and the gate insulating film; Implanting impurity ions into the active layer to form a source region and a drain region; Forming a first interlayer insulating film on the entire surface of the substrate; Removing a portion of the gate insulating film and the first interlayer insulating film to form a first contact hole; Depositing a metal on the first contact hole to form a metal wiring; Forming a second interlayer insulating film on the formed metal layer; Forming a second contact hole on the one gate electrode material; Forming a pixel electrode connected to the gate electrode connected to the drain region through the contact hole on the second interlayer insulating film; And forming a passivation layer on the pixel electrode. 제9항에 있어서, 상기 제1게이트 전극물질은 게이트 전극라인 임을 특징으로 하는 액정표시장치의 제조방법.10. The method of claim 9, wherein the first gate electrode material is a gate electrode line. 제9항에 있어서, 상기 제2게이트 전극물질은 스토리지 캐패시터의 상부전극라인 임을 특징으로 하는 액정표시장치의 제조방법.10. The method of claim 9, wherein the second gate electrode material is an upper electrode line of the storage capacitor. 제9항에 있어서, 상기 제3게이트 전극물질을 TFT의 드레인영역과 화소전극과의 연결라인 임을 특징으로 하는 액정표시장치의 제조방법.10. The method of claim 9, wherein the third gate electrode material is a connection line between the drain region of the TFT and the pixel electrode. 제9항에 있어서, 상기 제4게이트 전극물질은 TFT의 소오스영역과 메탈전극과의 연결라인 임을 특징으로 하는 액정표시장치의 제조방법.10. The method of claim 9, wherein the fourth gate electrode material is a connection line between the source region of the TFT and the metal electrode. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960014284A 1996-05-02 1996-05-02 Fabrication method of liquid crystal display device KR100192886B1 (en)

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KR100511041B1 (en) * 2001-08-30 2005-08-31 가부시키가이샤 히타치세이사쿠쇼 Liquid crystal display device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100511041B1 (en) * 2001-08-30 2005-08-31 가부시키가이샤 히타치세이사쿠쇼 Liquid crystal display device

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