KR20040026005A - 액정표시소자 및 그 제조 방법 - Google Patents
액정표시소자 및 그 제조 방법 Download PDFInfo
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- KR20040026005A KR20040026005A KR1020020056504A KR20020056504A KR20040026005A KR 20040026005 A KR20040026005 A KR 20040026005A KR 1020020056504 A KR1020020056504 A KR 1020020056504A KR 20020056504 A KR20020056504 A KR 20020056504A KR 20040026005 A KR20040026005 A KR 20040026005A
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- thin film
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- gate insulating
- film transistor
- insulating film
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010409 thin film Substances 0.000 claims abstract description 114
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 157
- 239000010408 film Substances 0.000 claims description 92
- 239000000758 substrate Substances 0.000 claims description 30
- 239000011229 interlayer Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 229910004205 SiNX Inorganic materials 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 description 17
- 238000002161 passivation Methods 0.000 description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 8
- 229920005591 polysilicon Polymers 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000004065 semiconductor Substances 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
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13454—Drivers integrated on the active matrix substrate
-
- 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
-
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1237—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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 with a different composition, shape, layout or thickness of the gate insulator in different devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42384—Gate electrodes for field effect devices for field-effect transistors with insulated gate for thin film field effect transistors, e.g. characterised by the thickness or the shape of the insulator or the dimensions, the shape or the lay-out of the conductor
-
- 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
- G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4908—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET for thin film semiconductor, e.g. gate of TFT
Abstract
Description
Claims (13)
- 화상표시부에 포함되는 다수의 신호라인들과 교차로 할당된 영역마다 마련된 액정셀들 각각을 구동하기 위한 제1 박막트랜지스터와,상기 화상표시부와 함께 표시패널 내에 형성되는 구동회로에 포함되는 제2 박막트랜지스터와,상기 제1 및 제2 박막트랜지스터의 각각에 포함되는 게이트전극과 액티브층 사이에 형성되며 에치스트퍼층을 갖는 적어도 2층 구조의 게이트절연막을 구비하며,상기 제1 및 제2 박막트랜지스터의 게이트절연막은 서로 다른 두께로 형성되는 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 제1 박막트랜지스터의 게이트절연막의 두께는 상기 제2 박막트랜지스터의 스위치소자의 게이트전극과 액티브층 사이에 형성되는 게이트절연막의 두께보다 두껍게 형성되는 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 제1 박막트랜지스트의 게이트절연막은 중간층이 에치스타퍼층인 삼층구조로 형성되는 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 제2 박막트랜지스터의 게이트절연막은 최상층이 에치스타퍼층인 이층구조로 형성되는 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 제1 및 제2 박막트랜지스터의 응답속도는 상기 게이트절연막에 의해 서로 다른 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 에치스타퍼층은 SiNx로 형성되는 것을 특징으로 하는 액정표시소자.
- 제 1 항에 있어서,상기 제2 박막트랜지스터의 게이트절연막의 최하층과 최상층 및 상기 제1 박막트랜지스터의 게이트절연막의 최하층은 SiO2로 형성되는 것을 특징으로 하는 액정표시소자.
- 화상표시부에 포함되는 다수의 신호라인들과 교차로 할당된 영역마다 마련된 액정셀들 각각을 구동하기 위한 제1 박막트랜지스터와, 상기 화상표시부와 함께 표시패널 내에 형성되는 구동회로를 구동하기 위한 제2 박막트랜지스터를 형성하는 제조방법에 있어서,상기 제1 및 제2 박막트랜지스터에 포함되는 게이트전극과 액티브층 사이의 게이트절연막을 형성하는 단계는 에치스트퍼층을 갖는 적어도 2층 구조로 서로 다른 두께를 갖도록 형성하는 단계인 것을 특징으로 하는 액정표시소자의 제조방법.
- 제 8 항에 있어서,기판 상에 상기 제1 및 제2 박막트랜지스터의 버퍼막을 형성하는 단계와,상기 버퍼막 상에 상기 제1 및 제2 박막트랜지스터의 스위치소자의 액티브층을 형성하는 단계와,상기 게이트절연막 상에 상기 제1 및 제2 박막트랜지스터의 게이트전극을 형성하는 단계와,상기 게이트전극이 형성된 게이트절연막 상에 상기 제1 및 제2 박막트랜지스터의 층간절연막을 형성하는 단계와,상기 층간절연막 상에 상기 제1 및 제2 박막트랜지스터의 소스전극 및 드레인전극을 형성하는 단계와,상기 층간절연막 상에 상기 제1 및 제2 박막트랜지스터의 보호막을 형성하는 단계와,상기 제1 박막트랜지스터의 드레인전극과 접촉되는 화소전극을 형성하는 단계를 추가로 포함하는 것을 특징으로 하는 액정표시소자의 제조방법.
- 제 8 항에 있어서,상기 제1 박막트랜지스터의 게이트절연막은 가운데층이 에치스타퍼층인 3층구조로 형성되는 것을 특징으로 하는 액정표시소자의 제조방법.
- 제 8 항에 있어서,상기 제2 박막트랜지스터의 게이트절연막은 최상층이 에치스타퍼인 2층구조로 형성되는 것을 특징으로 하는 액정표시소자의 제조방법.
- 제 8 항에 있어서,상기 에치스타퍼층은 SiNx로 형성되는 것을 특징으로 하는 액정표시소자의 제조방법.
- 제 8 항에 있어서,상기 제1 박막트랜지스터의 게이트절연막의 최하층과 최상층 및 상기 제2 박막트랜지스터의 게이트절연막의 최하층은 SiO2로 형성되는 것을 특징으로 하는 액정표시소자의 제조방법.
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KR1020020056504A KR100874647B1 (ko) | 2002-09-17 | 2002-09-17 | 액정표시소자 및 그 제조 방법 |
US10/662,389 US6999136B2 (en) | 2002-09-17 | 2003-09-16 | Liquid crystal display and fabricating method thereof |
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KR1020020056504A KR100874647B1 (ko) | 2002-09-17 | 2002-09-17 | 액정표시소자 및 그 제조 방법 |
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KR20040026005A true KR20040026005A (ko) | 2004-03-27 |
KR100874647B1 KR100874647B1 (ko) | 2008-12-17 |
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Cited By (8)
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US9245905B2 (en) | 2013-05-30 | 2016-01-26 | Samsung Display Co., Ltd. | Back plane for flat panel display device and method of manufacturing the same |
KR20160103493A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
KR20160103495A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
KR20160103492A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
KR20160103494A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
KR20160117847A (ko) * | 2015-03-31 | 2016-10-11 | 삼성디스플레이 주식회사 | 표시 장치 |
KR20170063281A (ko) * | 2015-11-30 | 2017-06-08 | 엘지디스플레이 주식회사 | 표시장치 |
KR20200016058A (ko) | 2018-08-06 | 2020-02-14 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판, 그 제조방법 및 이를 포함하는 표시장치 |
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KR100560405B1 (ko) * | 2003-11-04 | 2006-03-14 | 엘지.필립스 엘시디 주식회사 | 수평 전계 인가형 박막 트랜지스터 기판 및 그 제조 방법 |
KR101216169B1 (ko) * | 2005-06-30 | 2012-12-28 | 엘지디스플레이 주식회사 | 액정 표시 장치용 박막 트랜지스터 소자 및 그의 제조 방법 |
JP5052142B2 (ja) * | 2007-01-16 | 2012-10-17 | 株式会社ジャパンディスプレイイースト | 表示装置 |
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KR20160103493A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
KR20160103495A (ko) * | 2015-10-07 | 2016-09-01 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판 및 이를 이용한 표시장치 |
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KR20170063281A (ko) * | 2015-11-30 | 2017-06-08 | 엘지디스플레이 주식회사 | 표시장치 |
KR20200016058A (ko) | 2018-08-06 | 2020-02-14 | 엘지디스플레이 주식회사 | 박막 트랜지스터 기판, 그 제조방법 및 이를 포함하는 표시장치 |
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US6999136B2 (en) | 2006-02-14 |
KR100874647B1 (ko) | 2008-12-17 |
US20040075783A1 (en) | 2004-04-22 |
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