KR20020076859A - 폴리실리콘 박막트랜지스터와 이를 포함하는 어레이기판제조방법 - Google Patents
폴리실리콘 박막트랜지스터와 이를 포함하는 어레이기판제조방법 Download PDFInfo
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- KR20020076859A KR20020076859A KR1020010017023A KR20010017023A KR20020076859A KR 20020076859 A KR20020076859 A KR 20020076859A KR 1020010017023 A KR1020010017023 A KR 1020010017023A KR 20010017023 A KR20010017023 A KR 20010017023A KR 20020076859 A KR20020076859 A KR 20020076859A
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 50
- 239000000758 substrate Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 claims abstract description 82
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 41
- 229920005591 polysilicon Polymers 0.000 claims abstract description 41
- 239000010409 thin film Substances 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 238000002161 passivation Methods 0.000 claims abstract description 7
- 239000010408 film Substances 0.000 claims description 57
- 238000005530 etching Methods 0.000 claims description 36
- 238000001312 dry etching Methods 0.000 claims description 19
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 17
- 238000001039 wet etching Methods 0.000 claims description 13
- 239000011651 chromium Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000000059 patterning Methods 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 76
- 239000011229 interlayer Substances 0.000 description 16
- 239000002019 doping agent Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
-
- 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
- H01L29/66007—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
-
- 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
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/10—Materials and properties semiconductor
- G02F2202/104—Materials and properties semiconductor poly-Si
Abstract
Description
Claims (12)
- 기판을 구비하는 단계와;상기 기판 상에 섬 형상의 폴리실리콘 반도체 층을 형성하는 단계와;상기 섬 형상의 반도체층 중 상기 제 1 영역 상에 평면적으로 겹쳐지는 제 1 절연막과 게이트전극을 형성하는 단계와;상기 게이트 전극과 대응하는 영역을 제외한 폴리실리콘 반도체 층의 표면에 불순물을 도핑하여 소스영역과 드레인영역을 형성하는 단계와;상기 소스 영역 및 드레인 영역과 게이트 전극 상부에 제 2 절연막을 형성하고, 상기 소스 영역 및 드레인 영역을 노출하는 식각 공정에 있어서,상기 제 2 절연막 상에 포토레지스트를 코팅하여 포토레지스트 층을 형성하는 단계와;상기 포토레지스트 층의 상부에 노광마스크를 위치시키고, 포토레지스트 층의 일부를 노광하는 단계와;상기 노광된 포토레지스트를 현상한 후 제거하여 하부의 제 2 절연막을 노출하는 단계와;건식식각 법을 사용하여 상기 노출된 제 2 절연막을 표면으로부터 일부만 식각하는 단계와;습식식각 법을 사용하여, 상기 일부가 식각된 잔류 절연막을 모두 식각하여 하부의 소스영역 및 드레인 영역을 노출하는 단계와;상기 소스영역 및 드레인영역과 각각 접촉하는 소스전극과 드레인전극을 형성하는 단계와;상기 소스전극 및 드레인 전극이 형성된 기판 상에 증착되어, 상기 드레인전극의 일부를 노출하는 보호막을 형성하는 단계와;상기 보호막 상에 구성되고, 상기 드레인전극과 접촉하는 투명전극을 형성하는 단계를 포함하는 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 반도체층의 하부에 절연막인 버퍼층을 더욱 형성하는 단계를 포함하는 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 폴리 실리콘은 비정질 실리콘을 결정화하여 형성한 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 제 1, 제 2 절연막은 실리콘 산화막(SiO2), 실리콘 질화막(SiNX), TEOS, 알루미늄 산화막(Al2O3)으로 구성된 무기절연 물질그룹 중 선택된 하나로 형성한 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 게이트 전극은 알루미늄(Al), 크롬(Cr), 텅스텐(W), 몰리브덴(Mo), 안티몬(Sb), 탄탈(Ta)과 알루미늄 합금으로 구성된 도전성 금속그룹 중 선택된 하나인 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 소스 및 드레인전극은 알루미늄(Al), 알루미늄 합금, 크롬(Cr), 텅스텐(W), 몰리브덴(Mo), 안티몬(Sb), 탄탈(Ta)로 구성된 도전성 금속그룹 중 선택된 하나로 형성한 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 제 1 항에 있어서,상기 보호막은 제 2 절연막을 패터닝하는 방법과 동일한 방법으로 패터닝하여 형성한 폴리실리콘 박막트랜지스터 어레이기판 제조방법.
- 기판을 구비하는 단계와;상기 기판 상에 섬 형상의 폴리실리콘 반도체 층을 형성하는 단계와;상기 섬 형상의 반도체층 중 상기 제 1 영역 상에 평면적으로 겹쳐지는 제 1 절연막과 게이트전극을 형성하는 단계와;상기 게이트 전극과 대응하는 영역을 제외한 폴리실리콘 반도체층의 표면에 불순물을 도핑하여 소스영과 드레인영역을 형성하는 단계와;상기 소스 영역 및 드레인 영역과 게이트 전극 상부에 제 2 절연막을 형성하고, 상기 소스 영역 및 드레인 영역을 노출하는 식각 공정에 있어서,상기 제 2 절연막 상에 포토레지스트를 코팅하여 포토레지스트 층을 형성하는 단계와;상기 포토레지스트 층의 상부에 노광마스크를 위치시키고, 포토레지스트 층의 일부를 노광하는 단계와;상기 노광된 포토레지스트를 현상한 후 제거하여 하부의 제 2 절연막을 노출하는 단계와;건식식각 법을 사용하여 상기 노출된 제 2 절연막을 표면으로부터 일부만 식각하는 단계와;습식식각 법을 사용하여, 상기 일부가 식각된 잔류 절연막을 모두 식각하여하부의 소스영역 및 드레인 영역을 노출하는 단계와;상기 소스영역 및 드레인영역과 각각 접촉하는 소스전극과 드레인전극을 형성하는 단계를 포함하는 폴리실리콘 박막트랜지스터 제조방법.
- 제 8 항에 있어서,상기 폴리 실리콘은 비정질 실리콘을 결정화하여 형성한 폴리실리콘 박막트랜지스터 제조방법.
- 제 8 항에 있어서,상기 제 1, 제 2 절연막은 실리콘 산화막(SiO2), 실리콘 질화막(SiNX), TEOS, 알루미늄 산화막(Al2O3)으로 구성된 무기절연 물질그룹 중 선택된 하나로 형성한 폴리실리콘 박막트랜지스터 제조방법.
- 제 8 항에 있어서,상기 게이트 전극은 알루미늄(Al), 알루미늄 합금으로 구성된 폴리실리콘 박막트랜지스터 제조방법.
- 제 8 항에 있어서,상기 소스 및 드레인전극은 크롬(Cr), 텅스텐(W), 몰리브덴(Mo), 안티몬(Sb), 탄탈(Ta)로 구성된 도전성 금속그룹 중 선택된 하나로 형성한 폴리실리콘 박막트랜지스터 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020010017023A KR100748857B1 (ko) | 2001-03-30 | 2001-03-30 | 박막트랜지스터와 이를 포함하는 어레이기판 제조방법 |
US10/109,642 US6873379B2 (en) | 2001-03-30 | 2002-04-01 | Fabricating method of an array substrate having polysilicon thin film transistor |
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KR1020010017023A KR100748857B1 (ko) | 2001-03-30 | 2001-03-30 | 박막트랜지스터와 이를 포함하는 어레이기판 제조방법 |
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Publication Number | Publication Date |
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KR20020076859A true KR20020076859A (ko) | 2002-10-11 |
KR100748857B1 KR100748857B1 (ko) | 2007-08-13 |
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KR1020010017023A KR100748857B1 (ko) | 2001-03-30 | 2001-03-30 | 박막트랜지스터와 이를 포함하는 어레이기판 제조방법 |
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US (1) | US6873379B2 (ko) |
KR (1) | KR100748857B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100480030B1 (ko) * | 2002-10-24 | 2005-03-31 | 엘지전자 주식회사 | 박막 필름 벌크 오코스틱 공진기 및 필터 제조 방법 |
US7985992B2 (en) | 2004-05-24 | 2011-07-26 | Samsung Mobile Display Co., Ltd. | Semiconductor device and method of fabricating the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100500779B1 (ko) | 2003-10-10 | 2005-07-12 | 엘지.필립스 엘시디 주식회사 | 박막 트랜지스터 어레이 기판의 제조 방법 |
KR101003836B1 (ko) * | 2005-09-29 | 2010-12-27 | 재단법인서울대학교산학협력재단 | 나노 구조체의 제조 방법 |
JP4487318B2 (ja) * | 2007-07-26 | 2010-06-23 | エプソンイメージングデバイス株式会社 | 液晶表示装置及びその製造方法 |
CN104218094B (zh) * | 2014-08-28 | 2016-11-23 | 京东方科技集团股份有限公司 | 一种薄膜晶体管、显示基板及显示装置 |
CN106935546B (zh) * | 2017-04-12 | 2019-09-06 | 京东方科技集团股份有限公司 | 阵列基板的制备方法、阵列基板、显示面板和显示装置 |
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KR950009797B1 (ko) * | 1992-06-27 | 1995-08-28 | 삼성전자주식회사 | 바텀 게이트를 구비한 fid 폴리 실리콘 tft |
US5835177A (en) * | 1995-10-05 | 1998-11-10 | Kabushiki Kaisha Toshiba | Array substrate with bus lines takeout/terminal sections having multiple conductive layers |
US6037609A (en) * | 1997-01-17 | 2000-03-14 | General Electric Company | Corrosion resistant imager |
US6770564B1 (en) * | 1998-07-29 | 2004-08-03 | Denso Corporation | Method of etching metallic thin film on thin film resistor |
TW514757B (en) * | 1998-11-26 | 2002-12-21 | Seiko Epson Corp | Electro-optical device and production method thereof and electronic equipment |
KR100325629B1 (ko) * | 1998-12-19 | 2002-08-21 | 엘지.필립스 엘시디 주식회사 | 폴리실리콘-박막트랜지스터소자 및 그 제조방법, |
-
2001
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100480030B1 (ko) * | 2002-10-24 | 2005-03-31 | 엘지전자 주식회사 | 박막 필름 벌크 오코스틱 공진기 및 필터 제조 방법 |
US7985992B2 (en) | 2004-05-24 | 2011-07-26 | Samsung Mobile Display Co., Ltd. | Semiconductor device and method of fabricating the same |
US8168531B2 (en) | 2004-05-24 | 2012-05-01 | Samsung Mobile Display Co., Ltd. | Semiconductor device and method of fabricating the same |
US8749069B2 (en) | 2004-05-24 | 2014-06-10 | Samsung Display Co., Ltd. | Semiconductor device and method of fabricating the same |
Also Published As
Publication number | Publication date |
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US20020139983A1 (en) | 2002-10-03 |
KR100748857B1 (ko) | 2007-08-13 |
US6873379B2 (en) | 2005-03-29 |
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