KR20050104953A - 박막 트랜지스터 표시판의 제조 방법 - Google Patents
박막 트랜지스터 표시판의 제조 방법 Download PDFInfo
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- KR20050104953A KR20050104953A KR1020040030425A KR20040030425A KR20050104953A KR 20050104953 A KR20050104953 A KR 20050104953A KR 1020040030425 A KR1020040030425 A KR 1020040030425A KR 20040030425 A KR20040030425 A KR 20040030425A KR 20050104953 A KR20050104953 A KR 20050104953A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000010409 thin film Substances 0.000 title abstract description 55
- 239000004065 semiconductor Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 46
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000005530 etching Methods 0.000 claims abstract description 10
- 150000002500 ions Chemical class 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 77
- 239000002184 metal Substances 0.000 claims description 77
- 239000012535 impurity Substances 0.000 claims description 30
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 238000001312 dry etching Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005224 laser annealing Methods 0.000 claims description 2
- 238000001039 wet etching Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 149
- 239000010408 film Substances 0.000 abstract description 78
- 239000011229 interlayer Substances 0.000 abstract description 41
- 230000008569 process Effects 0.000 abstract description 19
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000000059 patterning Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 description 24
- 230000000903 blocking effect Effects 0.000 description 14
- 239000004020 conductor Substances 0.000 description 14
- 238000000206 photolithography Methods 0.000 description 14
- 229920002120 photoresistant polymer Polymers 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 description 11
- 229910052581 Si3N4 Inorganic materials 0.000 description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 9
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 239000010936 titanium Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 230000004913 activation Effects 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
- 229920005591 polysilicon Polymers 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036211 photosensitivity Effects 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
Classifications
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- 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
- H01L27/1259—Multistep manufacturing methods
- H01L27/1288—Multistep manufacturing methods employing particular masking sequences or specially adapted masks, e.g. half-tone mask
-
- 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
- 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
- H01L27/124—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 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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- 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
- H01L27/1259—Multistep manufacturing methods
- H01L27/127—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement
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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
- H01L29/40—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
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- H—ELECTRICITY
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- 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
- H01L29/66757—Lateral single gate single channel transistors with non-inverted structure, i.e. the channel layer is formed before the gate
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- 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
- H01L29/68—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
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78618—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
- H01L29/78621—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (14)
- 기판 위에 다결정 규소로 이루어진 반도체 패턴을 형성하는 단계,상기 반도체 패턴 위에 게이트 절연막을 형성하는 단계,상기 게이트 절연막 위에 제1 금속막과 제2 금속막을 차례로 증착하는 단계,상기 제1 및 제2 금속막을 식각하여 하부막이 상부막의 폭보다 좁은 이중막 구조의 게이트 전극을 형성하는 단계,상기 제1 및 제2 금속막 위에 감광막을 도포하는 단계, 그리고상기 게이트 전극을 마스크로 이온을 주입하여 상기 게이트 전극의 상부막에 대응하는 소스 및 드레인 영역, 상기 게이트 전극의 하부막에 대응하는 채널 영역, 상기 채널 영역과 상기 소스 및 드레인 영역 사이에 위치하며 상기 소스 및 드레인 영역에 비하여 불순물 농도가 낮은 중간 영역을 상기 반도체 패턴에 형성하는 단계를 포함하는 액정 표시 장치의 제조 방법.
- 제1항에서,상기 영역 형성 단계는 상기 게이트 전극의 상부막을 고농도 도핑 마스크로 사용하여 상기 반도체층에 도전형 불순물을 고농도로 도핑하는 단계를 포함하는 액정표시 장치의 제조 방법.
- 제2항에서,상기 영역 형성 단계는,상기 감광막 및 상기 게이트 전극의 상부막을 상기 전극의 하부막의 폭까지 건식 식각하는 단계, 그리고상기 게이트 전극의 하부막을 마스크로 상기 반도체 패턴에 저농도 이온을 주입하여 상기 중간 영역을 저농도로 도핑하는 단계를 더 포함하는액정 표시 장치의 제조 방법.
- 제3항에서,상기 반도체층에 도핑된 불순물을 ELA(excimer laser annealing)를 이용하여 활성화시키는 단계를 더 포함하는 액정표시 장치의 제조 방법.
- 제4항에서,상기 게이트 전극 및 상기 게이트 전극이 가리지 않는 양쪽의 반도체층 일부를 각각 덮는 도전체 패턴을 형성하는 단계를 더 포함하는 액정표시 장치의 제조 방법.
- 제1항에서,상기 게이트 전극을 형성하는 단계는 상기 제1 금속막을 식각하여 상기 게이트 전극의 상부막을 형성하는 단계, 상기 상부막을 마스크로 상기 제2 금속막 및 감광막을 등방성 습식 식각하는 단계를 포함하는 액정 표시 장치의 제조 방법.
- 제6항에서,상기 제1 금속막과 상기 제2 금속막은 서로 다른 식각 선택비를 가지는 금속으로 형성하는 액정 표시 장치의 제조 방법.
- 제7항에서,상기 제1 및 제2 금속막은 각각 증착순으로 Al/Mo, Mo/Al, AlNd/MoW, MoW/AlNd 또는 Mo/ITO로 형성하는 액정 표시 장치의 제조 방법.
- 제8항에서,상기 제1 금속막 및 제2 금속막은 각각 1,000∼2,500Å의 두께로 형성하는 액정 표시 장치의 제조 방법.
- 제1항에서,상기 게이트 전극을 형성하는 단계는상기 제1 금속막과 상기 제2 금속막을 동시에 식각하는 단계,상기 제1 및 제2 금속막 사이의 전기·화학적 작용을 이용하여 상기 제1 금속막에 언더컷 구조를 형성하는 단계를 포함하는액정 표시 장치의 제조 방법.
- 제10항에서,상기 제1 금속막과 상기 제2 금속막은 알루미늄 식각액에 대해 선택성이 없는 물질로 형성하는 액정 표시 장치의 제조 방법.
- 제11항에서,상기 제1 금속막과 상기 제2 금속막은 스프레이 방식으로 식각하는 액정 표시 장치의 제조 방법.
- 제12항에서,상기 제1 및 제2 금속막은 각각 증착순으로 Al/Mo, Mo/Al, AlNd/MoW, MoW/AlNd 또는 Mo/ITO로 형성하는 액정 표시 장치의 제조 방법.
- 제13항에서,상기 제1 금속막 및 제2 금속막은 각각 1,000∼2,500Å의 두께로 형성하는 액정 표시 장치의 제조 방법.
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KR1020040030425A KR101026808B1 (ko) | 2004-04-30 | 2004-04-30 | 박막 트랜지스터 표시판의 제조 방법 |
US11/119,689 US7387920B2 (en) | 2004-04-30 | 2005-05-02 | Method of manufacturing thin film transistor array panel |
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KR1020040030425A KR101026808B1 (ko) | 2004-04-30 | 2004-04-30 | 박막 트랜지스터 표시판의 제조 방법 |
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KR20050104953A true KR20050104953A (ko) | 2005-11-03 |
KR101026808B1 KR101026808B1 (ko) | 2011-04-04 |
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Cited By (3)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100707175B1 (ko) * | 2005-01-13 | 2007-04-13 | 삼성전자주식회사 | 복층 구조의 게이트 전극을 갖는 박막 트랜지스터 및 그제조 방법 |
US8658460B2 (en) | 2011-06-21 | 2014-02-25 | Samsung Display Co., Ltd. | Organic light-emitting display device and method of manufacturing the same |
CN110838437A (zh) * | 2019-11-25 | 2020-02-25 | 上海华力集成电路制造有限公司 | 光阻残留物的去除方法及逻辑器件 |
CN110838437B (zh) * | 2019-11-25 | 2022-11-29 | 上海华力集成电路制造有限公司 | 光阻残留物的去除方法及逻辑器件 |
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US20050272189A1 (en) | 2005-12-08 |
KR101026808B1 (ko) | 2011-04-04 |
US7387920B2 (en) | 2008-06-17 |
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