KR20040104982A - 폴리실리콘 박막트랜지스터의 제조방법 - Google Patents
폴리실리콘 박막트랜지스터의 제조방법 Download PDFInfo
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- KR20040104982A KR20040104982A KR1020030035577A KR20030035577A KR20040104982A KR 20040104982 A KR20040104982 A KR 20040104982A KR 1020030035577 A KR1020030035577 A KR 1020030035577A KR 20030035577 A KR20030035577 A KR 20030035577A KR 20040104982 A KR20040104982 A KR 20040104982A
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- Prior art keywords
- polysilicon
- etching
- amorphous silicon
- predetermined thickness
- thin film
- Prior art date
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 45
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 41
- 239000010409 thin film Substances 0.000 claims abstract description 26
- 238000005530 etching Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 229920005591 polysilicon Polymers 0.000 claims description 72
- 239000010408 film Substances 0.000 claims description 37
- 239000004065 semiconductor Substances 0.000 claims description 35
- 230000008569 process Effects 0.000 claims description 18
- 238000000151 deposition Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 9
- 238000000137 annealing Methods 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 238000005224 laser annealing Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000059 patterning Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000032765 Device extrusion Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007715 excimer laser crystallization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
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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
-
- 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
- H01L29/66757—Lateral single gate single channel transistors with non-inverted structure, i.e. the channel layer is formed before the gate
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02422—Non-crystalline insulating materials, e.g. glass, polymers
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02488—Insulating materials
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02587—Structure
- H01L21/0259—Microstructure
- H01L21/02595—Microstructure polycrystalline
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02675—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using laser beams
- H01L21/02686—Pulsed laser beam
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Thin Film Transistor (AREA)
- Recrystallisation Techniques (AREA)
Abstract
Description
Claims (8)
- 기판위에 버퍼층을 증착하는 단계와;상기 버퍼층상에 비정질 실리콘을 소정의 두께로 증착하는 단계와;상기 증착된 비정질 실리콘을 레이저를 이용하여 폴리실리콘으로 결정화하는 단계와;상기 결정화된 폴리실리콘을 소정 두께로 식각하는 단계와;상기 소정의 두께로 식각된 폴리실리콘을 어닐링하는 단계와;상기 어닐링된 폴리실리콘을 패터닝하여 반도체층을 형성하는 단계를 포함하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,비정질 실리콘을 소정의 두께로 증착하는 단계에서 비정질 실리콘을 700 ~ 2000Å의 두께로 증착하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 증착된 비정질 실리콘을 레이저를 이용하여 폴리실리콘으로 결정화하는 단계에서 엑시머 레이저를 이용한 ELA(Excimer Laser Annealing) 또는 SLS(sequential lateral solidification)를 이용하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 결정화된 폴리실리콘을 소정 두께로 식각하는 단계에서 상기 폴리실리콘은 300 ~ 500Å의 두께로 식각하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 결정화된 폴리실리콘을 소정 두께로 식각하는 단계에서 상기 결정화된 폴리실리콘을 CMP(Chemical Mechanical Polishing) 공정을 이용하여 소정의 두께로 식각하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 결정화된 폴리실리콘을 소정 두께로 식각하는 단계에서 에치-백(ETCH-BACK) 공정을 이용하여 소정의 두께로 식각하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 폴리실리콘을 어닐링하는 단계에서 400 ~ 500℃ 온도로 어닐링하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 어닐링된 폴리실리콘을 패터닝하여 반도체층을 형성하는 단계이후, 상기 형성된 결과물상에 제 1 절연막을 형성하는 단계와;상기 제 1 절연막상에 금속막을 도포하여 소정패턴으로 게이트 전극을 형성하는 단계와;상기 게이트 전극이 형성된 결과물상에 제 2 절연막을 형성하는 단계와;상기 반도체층이 노출되도록 상기 제 1 절연막 및 상기 제 2 절연막을 식각하여 콘택홀을 형성하는 단계와;상기 콘택홀이 형성된 영역에 소스/드레인 전극을 형성하는 단계와;상기 형성된 소스/드레인 전극상에 보호막을 형성하는 단계와;상기 결과물상에 소정패턴으로 화소 전극을 형성하는 단계를 더 포함하는 것을 특징으로 하는 폴리실리콘 박막트랜지스터의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020030035577A KR100947180B1 (ko) | 2003-06-03 | 2003-06-03 | 폴리실리콘 박막트랜지스터의 제조방법 |
US10/663,805 US7259103B2 (en) | 2003-06-03 | 2003-09-17 | Fabrication method of polycrystalline silicon TFT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020030035577A KR100947180B1 (ko) | 2003-06-03 | 2003-06-03 | 폴리실리콘 박막트랜지스터의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040104982A true KR20040104982A (ko) | 2004-12-14 |
KR100947180B1 KR100947180B1 (ko) | 2010-03-15 |
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KR1020030035577A KR100947180B1 (ko) | 2003-06-03 | 2003-06-03 | 폴리실리콘 박막트랜지스터의 제조방법 |
Country Status (2)
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US (1) | US7259103B2 (ko) |
KR (1) | KR100947180B1 (ko) |
Cited By (2)
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US8703589B2 (en) | 2011-06-27 | 2014-04-22 | Samsung Display Co., Ltd. | Flat panel display and method of manufacturing the same |
KR20160088405A (ko) * | 2013-12-25 | 2016-07-25 | 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | 저온다결정실리콘박막의 예정세척방법 및 그 제조방법, 제작시스템 |
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WO2006045054A2 (en) * | 2004-10-18 | 2006-04-27 | E-Soc | Device for neuromusclar, peripheral body stimulation and electrical stimulation (es) for wound healing using rf energy harvesting |
US20080154331A1 (en) * | 2006-12-21 | 2008-06-26 | Varghese John | Device for multicentric brain modulation, repair and interface |
US9209314B2 (en) * | 2010-06-16 | 2015-12-08 | Semiconductor Energy Laboratory Co., Ltd. | Field effect transistor |
CN102751333A (zh) * | 2012-04-13 | 2012-10-24 | 友达光电股份有限公司 | 主动元件及其制造方法 |
US11437522B2 (en) | 2020-06-02 | 2022-09-06 | Globalfoundries U.S. Inc. | Field-effect transistors with a polycrystalline body in a shallow trench isolation region |
US11588056B2 (en) | 2020-08-13 | 2023-02-21 | Globalfoundries U.S. Inc. | Structure with polycrystalline active region fill shape(s), and related method |
US11152394B1 (en) | 2020-08-13 | 2021-10-19 | Globalfoundries U.S. Inc. | Structure with polycrystalline isolation region below polycrystalline fill shape(s) and selective active device(s), and related method |
JP7391064B2 (ja) * | 2021-03-22 | 2023-12-04 | 株式会社Kokusai Electric | 基板処理方法、半導体装置の製造方法、基板処理システム、およびプログラム |
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JPH10200120A (ja) * | 1997-01-10 | 1998-07-31 | Sharp Corp | 半導体装置の製造方法 |
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KR100831227B1 (ko) * | 2001-12-17 | 2008-05-21 | 삼성전자주식회사 | 다결정 규소를 이용한 박막 트랜지스터의 제조 방법 |
KR100487256B1 (ko) * | 2002-10-31 | 2005-05-03 | 엘지.필립스 엘시디 주식회사 | 폴리 실리콘 박막 트랜지스터 제조방법 |
KR100753568B1 (ko) * | 2003-06-30 | 2007-08-30 | 엘지.필립스 엘시디 주식회사 | 비정질 반도체층의 결정화방법 및 이를 이용한 액정표시소자의 제조방법 |
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2003
- 2003-06-03 KR KR1020030035577A patent/KR100947180B1/ko active IP Right Grant
- 2003-09-17 US US10/663,805 patent/US7259103B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8703589B2 (en) | 2011-06-27 | 2014-04-22 | Samsung Display Co., Ltd. | Flat panel display and method of manufacturing the same |
KR20160088405A (ko) * | 2013-12-25 | 2016-07-25 | 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | 저온다결정실리콘박막의 예정세척방법 및 그 제조방법, 제작시스템 |
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US7259103B2 (en) | 2007-08-21 |
US20040248422A1 (en) | 2004-12-09 |
KR100947180B1 (ko) | 2010-03-15 |
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