KR100891989B1 - 구동회로 일체형 액정표시장치용 박막 트랜지스터 제조방법 - Google Patents
구동회로 일체형 액정표시장치용 박막 트랜지스터 제조방법 Download PDFInfo
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- KR100891989B1 KR100891989B1 KR1020020078911A KR20020078911A KR100891989B1 KR 100891989 B1 KR100891989 B1 KR 100891989B1 KR 1020020078911 A KR1020020078911 A KR 1020020078911A KR 20020078911 A KR20020078911 A KR 20020078911A KR 100891989 B1 KR100891989 B1 KR 100891989B1
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- 239000010409 thin film Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 22
- 239000010410 layer Substances 0.000 claims abstract description 251
- 239000004065 semiconductor Substances 0.000 claims abstract description 132
- 238000000034 method Methods 0.000 claims abstract description 53
- 239000011229 interlayer Substances 0.000 claims abstract description 34
- 239000010408 film Substances 0.000 claims abstract description 29
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 14
- 229920005591 polysilicon Polymers 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims description 62
- 238000000151 deposition Methods 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 9
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000002513 implantation Methods 0.000 abstract 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 10
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 229910052814 silicon oxide Inorganic materials 0.000 description 9
- 238000005468 ion implantation Methods 0.000 description 6
- 229910004205 SiNX Inorganic materials 0.000 description 5
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 238000001994 activation Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- -1 for example Substances 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical group [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910008045 Si-Si Inorganic materials 0.000 description 1
- 229910006411 Si—Si Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005499 laser crystallization Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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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
-
- 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
-
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
-
- 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
-
- 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
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
- G02F1/136245—Active matrix addressed cells having more than one switching element per pixel having complementary transistors
-
- 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
- G02F1/136277—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon
- G02F1/136281—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon having a transmissive semiconductor substrate
Abstract
Description
Claims (5)
- 구동회로부 CMOS(complementary metal-oxide semiconductor)와 화소부 스위칭 소자를 포함하는 구동회로 일체형 액정표시장치용 박막 트랜지스터의 제조방법으로서,절연기판 전면에 버퍼층을 형성하는 단계와;상기 버퍼층 상에 제 1 마스크 공정을 진행하여 화소부에 폴리실리콘의 제 1 반도체층과, COMS부에 서로 이격하는 폴리 실리콘의 제 2 및 제 3 반도체층을 형성하는 단계와;상기 제 1, 2 및 3 반도체층 상부로 각각의 중앙부에 제 2 마스크 공정을 진행하여 순차적으로 게이트 절연막과 제 1, 2 및 3 게이트 전극을 형성하는 단계와;상기 제 1, 2 및 3 게이트 전극이 형성된 기판 전면에 제 1 도즈량의 n-도핑을 실시하는 단계와;상기 n-도핑 실시 후 상기 기판 상에 PR을 도포하고 제 3 마스크 공정을 진행하여 p+도핑 차단 PR패턴을 상기 화소부의 제 1 반도체층과 상기 CMOS부의 제 2 반도체층을 완전히 가리도록 형성하는 단계와;상기 p+도핑 차단 PR패턴이 형성된 기판에 상기 제 1 도즈량 보다 큰 제 2 도즈량의 p+ 도핑하여 상기 PR패턴 외부로 노출된 상기 CMOS부의 제 3 반도체층중 상기 제 3 게이트 전극 외부로 노출된 부분을 p형 오믹콘택층으로 형성하는 단계와;상기 p형 오믹콘택층이 형성된 상기 기판 상에 무기절연물질을 증착하여 제 1 두께의 층간절연막을 형성하는 단계와;상기 층간절연막을 제 4 마스크 공정을 진행하여 상기 화소부 및 CMOS의 제 1, 2 및 3 반도체층 중 상기 제 1, 2 및 3 게이트 전극 각각의 양측으로 이격하여 상기 제 1 두께보다 얇은 제 2 두께를 갖도록 홈을 갖도록 형성하는 단계와;상기 제 1, 2 및 3 반도체층에 대응하여 각각 상기 홈이 형성된 기판에 상기 제 1 두께의 층간절연막을 블록킹 마스크로 이용하여 상기 제 2 도즈량보다 작은 제 3 도즈량의 n+ 도핑을 실시함으로써 상기 홈에 대응하는 상기 화소부의 제 1 반도체층과 상기 CMOS부의 제 2 반도체층 영역에 각각 n형 오믹콘택층을 형성하는 단계와;상기 n형 오믹콘택층이 형성된 상기 기판에 대해 열처리를 실시함으로써 상기 제 1, 2 및 3 반도체층을 활성화시키는 단계와;에칭을 실시하여 상기 홈에 대응하여 상기 n형 및 p형 오믹콘택층을 노출시키는 단계와;노출된 n형 및 p형 오믹콘택층이 형성된 기판에 금속물질을 증착한 후, 제 5 마스크 공정을 진행하여 상기 층간절연막 위로 소스 및 드레인 전극을 형성하는 단계와;상기 소스 및 드레인 전극이 형성된 기판 전면에 질화실리콘을 증착하고 제 6 마스크 공정을 진행하여 상기 화소부에 드레인 전극 콘택홀을 갖는 보호층을 형성하는 단계를 포함하는 구동회로 일체형 액정표시장치용 박막 트랜지스터의 제조방법.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 제 1 도즈량은 1E13/㎠ 내지 5E13/㎠ 이며, 제 2 도즈량은 각각 2E15/㎠ 내지 1E16/㎠, 제 3 도즈량은 1E15/㎠ 내지 9E15/㎠인 구동회로 일체형 액정표시장치용 박막 트랜지스터 제조방법.
- 삭제
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KR1020020078911A KR100891989B1 (ko) | 2002-12-11 | 2002-12-11 | 구동회로 일체형 액정표시장치용 박막 트랜지스터 제조방법 |
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KR101106559B1 (ko) * | 2005-03-14 | 2012-01-19 | 엘지디스플레이 주식회사 | 액정표시장치용 어레이 기판의 제조 방법 |
TWI593115B (zh) | 2010-11-11 | 2017-07-21 | 半導體能源研究所股份有限公司 | 半導體裝置及其製造方法 |
KR102112283B1 (ko) * | 2013-08-20 | 2020-05-19 | 삼성디스플레이 주식회사 | 박막 트랜지스터를 포함하는 표시 기판 및 이의 제조 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756189A (ja) * | 1993-08-12 | 1995-03-03 | Seiko Epson Corp | 薄膜半導体装置およびその製造方法 |
KR20010084139A (ko) * | 2000-02-24 | 2001-09-06 | 구본준, 론 위라하디락사 | 상보형 모스 박막트랜지스터의 제조방법 |
KR20020079196A (ko) * | 2001-04-13 | 2002-10-19 | 삼성에스디아이 주식회사 | 평판 디스플레이 장치용 표시 소자 제조 방법 |
JP2002313805A (ja) * | 2001-04-17 | 2002-10-25 | Matsushita Electric Ind Co Ltd | 薄膜トランジスタの製造方法とそれを用いた液晶表示装置の製造方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756189A (ja) * | 1993-08-12 | 1995-03-03 | Seiko Epson Corp | 薄膜半導体装置およびその製造方法 |
KR20010084139A (ko) * | 2000-02-24 | 2001-09-06 | 구본준, 론 위라하디락사 | 상보형 모스 박막트랜지스터의 제조방법 |
KR20020079196A (ko) * | 2001-04-13 | 2002-10-19 | 삼성에스디아이 주식회사 | 평판 디스플레이 장치용 표시 소자 제조 방법 |
JP2002313805A (ja) * | 2001-04-17 | 2002-10-25 | Matsushita Electric Ind Co Ltd | 薄膜トランジスタの製造方法とそれを用いた液晶表示装置の製造方法 |
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