KR100733876B1 - 액정표시장치 및 그의 제조방법 - Google Patents
액정표시장치 및 그의 제조방법 Download PDFInfo
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- KR100733876B1 KR100733876B1 KR1020000000198A KR20000000198A KR100733876B1 KR 100733876 B1 KR100733876 B1 KR 100733876B1 KR 1020000000198 A KR1020000000198 A KR 1020000000198A KR 20000000198 A KR20000000198 A KR 20000000198A KR 100733876 B1 KR100733876 B1 KR 100733876B1
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 78
- 239000000758 substrate Substances 0.000 claims abstract description 23
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000002161 passivation Methods 0.000 claims description 29
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910016024 MoTa Inorganic materials 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
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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
- G02F1/136213—Storage capacitors associated with the pixel electrode
-
- 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
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
-
- 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
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
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- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
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- Thin Film Transistor (AREA)
- Liquid Crystal (AREA)
Abstract
Description
63, 65 : 제1 및 제2 접촉홀 67 : 화소 전극
T2 : 트랜지스터 영역 C2 : 캐패시터 영역
Claims (16)
- 트랜지스터영역과 캐패시터영역을 포함하는 투명기판과,상기 투명기판의 상기 트랜지스터영역 및 캐패시터영역 상에 형성된 게이트전극 및 캐패시터의 하부전극과,상기 투명기판 상에 게이트전극 및 하부전극을 덮도록 형성된 게이트절연막과,상기 트랜지스터영역의 상기 게이트절연막 상의 상기 게이트전극과 대응하는 부분에 형성된 활성층과,상기 활성층 상의 양측에 형성된 오믹접촉층과,상기 게이트절연막 상에 상기 오믹접촉층과 접촉되게 형성된 소오스 및 드레인전극과,상기 캐패시터영역의 상기 게이트절연막 상에 상기 하부전극 양측과 대응되게 형성됨과 아울러 상기 오믹접촉층과 동일한 물질 및 공정에 의해 형성된 더미유전막과,상기 게이트절연막 상의 상기 더미유전막 사이에 상기 하부전극과 대응되게 형성된 상부전극을 구비하는 액정표시장치.
- 제 1 항에 있어서,상기 캐패시터의 하부전극이 게이트라인 또는 별도의 배선으로 형성된 액정표시장치.
- 삭제
- 제 1 항에 있어서,상기 더미유전막과 상기 오믹접촉층이 불순물이 도핑되지 않은 비정질실리콘 또는 다결정실리콘으로 형성된 액정표시장치.
- 제 4 항에 있어서,상기 더미유전막 및 상기 오믹접촉층이 1500∼2000Å의 두께로 형성된 액정표시장치.
- 제 1 항에 있어서,상기 상부전극이 상기 소오스 및 드레인전극과 동일한 물질 및 공정으로 형성된 액정표시장치.
- 제 6 항에 있어서,상기 상부전극과 상기 소오스 및 드레인전극이 크롬(Cr) 또는 몰리브덴(Mo)이나, MoW, MoTa 또는 MoNb의 몰리브덴 합금(Mo alloy)으로 형성된 액정표시장치.
- 제 7 항에 있어서,상기 상부전극과 상기 소오스 및 드레인전극이 1000∼2000Å의 두께로 형성된 액정표시장치.
- 제 1 항에 있어서,상기 게이트절연막 상에 상기 소오스 및 드레인전극과 상기 상부전극 및 더미유전막을 덮도록 형성된 패시베이션층과,상기 패시베이션층에 상기 드레인전극 및 상기 상부전극이 노출되도록 형성된 제 1 및 제 2 접촉홀과,상기 패시베이션층 상에 상기 제 1 및 제 2 접촉홀을 통해 상기 드레인전극 및 상기 상부전극과 접촉되는 화소전극을 더 구비하는 액정표시장치.
- 투명기판 상의 트랜지스터영역에 게이트전극을 형성하면서 캐패시터영역에 캐패시터의 하부전극을 형성하는 공정과,상기 투명기판 상에 상기 게이트전극 및 하부전극을 덮도록 게이트절연막, 활성층 및 오믹접촉층을 순차적으로 형성하는 공정과,상기 오믹접촉층 및 활성층을 상기 트랜지스터영역의 상기 게이트전극과 대응되는 부분에 잔류되게 패터닝하면서 상기 캐패시터영역의 상기 하부전극의 양측과 대응하는 부분에도 잔류되도록 하여 더미유전막을 형성하는 공정과,상기 게이트절연막 상의 상기 트랜지스터영역에 상기 오믹접촉층의 양측과 접촉되는 소오스 및 드레인전극을 형성하면서 상기 캐패시터영역에 상기 더미유전막 사이의 상기 하부전극과 대응하는 부분에 캐패시터의 상부전극을 형성하는 공정을 포함하는 액정표시장치의 제조방법.
- 제 10 항에 있어서,상기 캐패시터의 하부전극을 게이트라인 또는 별도의 배선으로 형성하는 액정표시장치의 제조방법.
- 제 10 항에 있어서,상기 오믹접촉층과 상기 더미유전막을 동일한 물질 및 공정으로 형성하는 액정표시장치의 제조방법.
- 제 12 항에 있어서,상기 오믹접촉층과 상기 더미유전막을 불순물이 도핑되지 않은 비정질실리콘 또는 다결정실리콘으로 형성하는 액정표시장치의 제조방법.
- 제 10 항에 있어서,상기 소오스 및 드레인전극과 상기 상부전극을 동일한 물질 및 공정으로 형성하는 액정표시장치의 제조방법.
- 제 14 항에 있어서,상기 소오스 및 드레인전극과 상기 상부전극을 크롬(Cr) 또는 몰리브덴(Mo)이나, MoW, MoTa 또는 MoNb의 몰리브덴 합금(Mo alloy)으로 형성하는 액정표시장치의 제조방법.
- 제 10 항에 있어서,상기 게이트절연막 상에 상기 소오스 및 드레인전극과 상기 상부전극 및 더미유전막을 덮는 패시베이션층을 형성하는 공정과,상기 패시베이션층에 상기 드레인전극 및 상기 상부전극을 노출시키는 제 1 및 제 2 접촉홀을 형성하는 공정과,상기 패시베이션층 상에 상기 제 1 및 제 2 접촉홀을 통해 상기 드레인전극 및 상기 상부전극과 접촉되는 화소전극을 형성하는 공정을 더 포함하는 액정표시장치의 제조방법.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08222709A (ja) * | 1995-02-13 | 1996-08-30 | Mitsubishi Electric Corp | 半導体装置及びその製造方法 |
JPH11330396A (ja) * | 1998-05-18 | 1999-11-30 | Mitsubishi Electric Corp | 半導体記憶装置およびその製造方法 |
KR20000019130A (ko) * | 1998-09-09 | 2000-04-06 | 김영환 | 박막 트랜지스터 액정표시소자 |
KR20000046782A (ko) * | 1998-12-31 | 2000-07-25 | 김영환 | 반도체 장치 제조방법 |
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2000
- 2000-01-04 KR KR1020000000198A patent/KR100733876B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08222709A (ja) * | 1995-02-13 | 1996-08-30 | Mitsubishi Electric Corp | 半導体装置及びその製造方法 |
JPH11330396A (ja) * | 1998-05-18 | 1999-11-30 | Mitsubishi Electric Corp | 半導体記憶装置およびその製造方法 |
KR20000019130A (ko) * | 1998-09-09 | 2000-04-06 | 김영환 | 박막 트랜지스터 액정표시소자 |
KR20000046782A (ko) * | 1998-12-31 | 2000-07-25 | 김영환 | 반도체 장치 제조방법 |
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