JP2011258907A - 薄膜トランジスター、それを備えた表示装置およびその製造方法 - Google Patents
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- 239000010409 thin film Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 97
- 239000010408 film Substances 0.000 claims abstract description 43
- 239000004065 semiconductor Substances 0.000 claims abstract description 37
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 29
- 239000011521 glass Substances 0.000 claims description 26
- 239000007769 metal material Substances 0.000 claims description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 description 46
- 230000008569 process Effects 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 238000007789 sealing 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
- 229910004205 SiNX Inorganic materials 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
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- 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
- 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
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
- H01L27/1266—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate the substrate on which the devices are formed not being the final device substrate, e.g. using a temporary substrate
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
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- 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
- H01L27/1218—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 or structure of the substrate
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- 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
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
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Abstract
【解決手段】本発明の実施形態に係る薄膜トランジスターは、基板本体と、前記基板本体上に位置し、2000〜8000ohm/sq範囲内の表面抵抗を有する多結晶シリコン膜で形成された半導体層と、前記半導体層とそれぞれ互いに接触し、350〜2000ohm範囲内の抵抗を有する金属物質で形成されたソース電極およびドレイン電極とを含む。
【選択図】図1
Description
101、102 表示装置
111 基板本体
120 バリア膜
130 半導体層
140 ゲート絶縁膜
155 ゲート電極
160 層間絶縁膜
176 ソース電極
177 ドレイン電極
180 平坦化膜
190 画素定義膜
500 ガラス基板
710 画素電極
720 有機発光層
730 共通電極
Claims (16)
- 基板本体と、
前記基板本体上に位置し、2000〜8000ohm/sq範囲内の表面抵抗を有する多結晶シリコン膜で形成された半導体層と、
前記半導体層とそれぞれ互いに接触し、350〜2000ohm範囲内の抵抗を有する金属物質で形成されたソース電極およびドレイン電極と、
を含む、薄膜トランジスター。 - 前記ソース電極および前記ドレイン電極とそれぞれ接触された前記半導体層は不活性化された状態である、請求項1に記載の薄膜トランジスター。
- 前記金属物質は、4.1〜4.5範囲内の仕事関数を有する、請求項2に記載の薄膜トランジスター。
- 基板本体と、
前記基板本体上に位置し、2000〜8000ohm/sq範囲内の表面抵抗を有する多結晶シリコン膜で形成された半導体層と、
前記半導体層とそれぞれ互いに接触し、350〜2000ohm範囲内の抵抗を有する金属物質で形成されたソース電極およびドレイン電極と、
を含む、表示装置。 - 前記ソース電極および前記ドレイン電極とそれぞれ接触された前記半導体層は不活性化された状態である、請求項4に記載の表示装置。
- 前記金属物質は、4.1〜4.5範囲内の仕事関数を有する、請求項5に記載の表示装置。
- 前記基板本体はプラスチック素材で形成された、請求項4〜請求項6のいずれか一項に記載の表示装置。
- 前記基板本体上に形成された有機発光素子をさらに含む、請求項7に記載の表示装置。
- 前記基板本体上に形成された液晶層をさらに含む、請求項7に記載の表示装置。
- ガラス基板を設ける段階と、
前記ガラス基板上にプラスチックを素材として基板本体を形成する段階と、
前記基板本体上に多結晶シリコン膜で半導体層を形成する半導体層段階と、
前記半導体層が不活性化された状態で前記半導体層とそれぞれ互いに接触するようにソース電極およびドレイン電極を形成する段階と、
前記ガラス基板を前記基板本体から分離する段階と、
を含む、表示装置の製造方法。 - 前記多結晶シリコン膜は、2000〜8000ohm/sq範囲内の表面抵抗を有する、請求項10に記載の表示装置の製造方法。
- 前記ソース電極および前記ドレイン電極は、350〜2000ohm範囲内の抵抗を有する金属物質で形成される、請求項11に記載の表示装置の製造方法。
- 前記金属物質は、4.1〜4.5範囲内の仕事関数を有する、請求項12に記載の表示装置の製造方法。
- 前記半導体層は摂氏400℃未満の温度で形成される、請求項10に記載の表示装置の製造方法。
- 前記基板本体上に有機発光素子を形成する段階をさらに含む、請求項10〜請求項14のいずれか一項に記載の表示装置の製造方法。
- 前記基板本体上に液晶層を形成する段階をさらに含む、請求項10〜請求項14のいずれか一項に記載の表示装置の製造方法。
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KR10-2010-0052865 | 2010-06-04 | ||
KR1020100052865A KR101056431B1 (ko) | 2010-06-04 | 2010-06-04 | 박막 트랜지스터, 이를 구비한 표시 장치 및 그 제조 방법 |
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KR20140097940A (ko) | 2013-01-30 | 2014-08-07 | 삼성디스플레이 주식회사 | 실리콘 산화물과 실리콘 질화물을 포함하는 배리어층을 구비한 tft기판, 상기 tft 기판을 포함하는 유기 발광 표시 장치 및 상기 tft 기판의 제조 방법 |
KR102061794B1 (ko) | 2013-04-30 | 2020-01-03 | 삼성디스플레이 주식회사 | 표시장치용 기판 및 이를 구비한 표시장치 |
WO2017180871A1 (en) | 2016-04-13 | 2017-10-19 | Purdue Research Foundation | Systems and methods for isolating a target in an ion trap |
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US20110297952A1 (en) | 2011-12-08 |
US8906719B2 (en) | 2014-12-09 |
US20140170790A1 (en) | 2014-06-19 |
US8680531B2 (en) | 2014-03-25 |
KR101056431B1 (ko) | 2011-08-11 |
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