KR100742382B1 - 박막트랜지스터의 제조방법 - Google Patents
박막트랜지스터의 제조방법 Download PDFInfo
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- KR100742382B1 KR100742382B1 KR1020060058774A KR20060058774A KR100742382B1 KR 100742382 B1 KR100742382 B1 KR 100742382B1 KR 1020060058774 A KR1020060058774 A KR 1020060058774A KR 20060058774 A KR20060058774 A KR 20060058774A KR 100742382 B1 KR100742382 B1 KR 100742382B1
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- layer
- thin film
- film transistor
- metal catalyst
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 239000010409 thin film Substances 0.000 title claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 99
- 239000002184 metal Substances 0.000 claims abstract description 99
- 239000003054 catalyst Substances 0.000 claims abstract description 71
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 46
- 239000004065 semiconductor Substances 0.000 claims abstract description 39
- 239000012535 impurity Substances 0.000 claims abstract description 35
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 203
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000010408 film Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000005247 gettering Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 description 52
- 230000008025 crystallization Effects 0.000 description 37
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 238000005240 physical vapour deposition Methods 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 229910021332 silicide Inorganic materials 0.000 description 4
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000007715 excimer laser crystallization Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910021654 trace metal Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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Classifications
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/322—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections
- H01L21/3221—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections of silicon bodies, e.g. for gettering
- H01L21/3226—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections of silicon bodies, e.g. for gettering of silicon on insulator
-
- 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
- H01L21/02672—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using crystallisation enhancing elements
-
- 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
- H01L27/1259—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
- H01L27/1274—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor
- H01L27/1277—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor using a crystallisation promoting species, e.g. local introduction of Ni catalyst
-
- 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
Abstract
Description
Claims (12)
- 기판을 준비하는 단계;상기 기판 상에 버퍼층을 형성하는 단계;상기 버퍼층에 제 1 불순물을 주입하는 단계;상기 버퍼층 상에 비정질 실리콘층을 형성하는 단계;상기 비정질 실리콘층 상에 캡핑층을 형성하는 단계;상기 캡핑층 상에 금속 촉매를 증착하는 단계;상기 기판을 제 1 열처리하여 금속 촉매에 의해 비정질 실리콘층을 다결정 실리콘층으로 결정화하는 단계;상기 캡핑층을 제거하는 단계;상기 다결정 실리콘층을 패터닝하여 반도체층을 형성하는 단계;상기 기판 상에 게이트 절연막 및 게이트 전극을 형성하는 단계;상기 반도체층에 제 2 불순물을 주입하는 단계; 및상기 기판을 제 2 열처리하여 반도체층에 잔류하는 금속 촉매를 버퍼층으로 제거하는 단계;를 포함하고,상기 제 1 불순물은 1*e11/cm2 내지 1*e20/cm2로 주입하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 1 불순물은 주기율표 상의 5족 원소인 것을 특징으로 하는 박막트랜지스터의 제조방법
- 제 1항에 있어서,상기 제 1 불순물은 인(P), PHx + 또는 P2Hx(여기서, X=1,2,3...)로 이루어진 군에서 선택되는 어느 하나인 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 버퍼층은 10Å 내지 3000Å의 두께로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 1 열처리는 200℃ 내지 800℃의 온도 범위에서 실시하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 1 열처리는 1 분 내지 20 시간의 범위에서 실시하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 2 열처리는 450℃ 내지 800℃의 온도 범위에서 실시하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 2 열처리는 1 분 내지 10 시간의 범위에서 실시하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 캡핑층은 실리콘 산화막 또는 실리콘 질화막의 단층 또는 복층으로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 캡핑층은 1 내지 2000Å의 두께로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 제 2 불순물은 붕소(B), 알루미늄(Al), 갈륨(Ga) 및 인듐(In)으로 이루어진 군에서 선택되는 어느 하나인 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 버퍼층은 비정질 실리콘으로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8278716B2 (en) | 2008-12-30 | 2012-10-02 | Samsung Display Co., Ltd. | Method of fabricating polysilicon, thin film transistor, method of fabricating the thin film transistor, and organic light emitting diode display device including the thin film transistor |
US8803148B2 (en) | 2011-06-03 | 2014-08-12 | Samsung Display Co., Ltd. | Thin film transistor, manufacturing method of thin film transistor, and organic light emitting diode display including the same |
US9070717B2 (en) | 2009-11-20 | 2015-06-30 | Samsung Display Co., Ltd. | Method of fabricating polysilicon layer, thin film transistor, organic light emitting diode display device including the same, and method of fabricating the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970063763A (ko) * | 1996-02-23 | 1997-09-12 | 순페이 야마자끼 | 반도체 박막, 반도체 장치 및 이의 제조 방법 |
KR20050080175A (ko) * | 1999-07-22 | 2005-08-11 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 디바이스 및 그 제작 방법 |
KR100685848B1 (ko) * | 2005-12-16 | 2007-02-22 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조방법 |
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- 2006-06-28 KR KR1020060058774A patent/KR100742382B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR970063763A (ko) * | 1996-02-23 | 1997-09-12 | 순페이 야마자끼 | 반도체 박막, 반도체 장치 및 이의 제조 방법 |
KR20050080175A (ko) * | 1999-07-22 | 2005-08-11 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 디바이스 및 그 제작 방법 |
KR100685848B1 (ko) * | 2005-12-16 | 2007-02-22 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조방법 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8278716B2 (en) | 2008-12-30 | 2012-10-02 | Samsung Display Co., Ltd. | Method of fabricating polysilicon, thin film transistor, method of fabricating the thin film transistor, and organic light emitting diode display device including the thin film transistor |
US9070717B2 (en) | 2009-11-20 | 2015-06-30 | Samsung Display Co., Ltd. | Method of fabricating polysilicon layer, thin film transistor, organic light emitting diode display device including the same, and method of fabricating the same |
US9576797B2 (en) | 2009-11-20 | 2017-02-21 | Samsung Display Co., Ltd. | Method of fabricating polysilicon layer, thin film transistor, organic light emitting diode display device including the same, and method of fabricating the same |
US8803148B2 (en) | 2011-06-03 | 2014-08-12 | Samsung Display Co., Ltd. | Thin film transistor, manufacturing method of thin film transistor, and organic light emitting diode display including the same |
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