JP6334057B2 - 薄膜トランジスタ及び表示パネル - Google Patents
薄膜トランジスタ及び表示パネル Download PDFInfo
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- JP6334057B2 JP6334057B2 JP2017508846A JP2017508846A JP6334057B2 JP 6334057 B2 JP6334057 B2 JP 6334057B2 JP 2017508846 A JP2017508846 A JP 2017508846A JP 2017508846 A JP2017508846 A JP 2017508846A JP 6334057 B2 JP6334057 B2 JP 6334057B2
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- Prior art keywords
- polysilicon layer
- drain electrode
- source electrode
- width direction
- silicon layer
- Prior art date
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- 239000010409 thin film Substances 0.000 title claims description 54
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 148
- 229920005591 polysilicon Polymers 0.000 claims description 130
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 103
- 239000000758 substrate Substances 0.000 claims description 46
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- 239000010408 film Substances 0.000 description 64
- 238000010586 diagram Methods 0.000 description 24
- 239000011521 glass Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 15
- 230000007423 decrease Effects 0.000 description 11
- 238000005530 etching Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 7
- 238000000137 annealing Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000002161 passivation Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005224 laser annealing Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Classifications
-
- 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
- H01L27/1222—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 crystalline structure of the active layer
-
- 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
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
-
- 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
- H01L29/68—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
- H01L29/78651—Silicon transistors
- H01L29/7866—Non-monocrystalline silicon transistors
-
- 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
- H01L29/68—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
- H01L29/78651—Silicon transistors
- H01L29/7866—Non-monocrystalline silicon transistors
- H01L29/78663—Amorphous silicon transistors
- H01L29/78669—Amorphous silicon transistors with inverted-type structure, e.g. with bottom gate
-
- 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
- H01L29/68—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
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thin Film Transistor (AREA)
- Recrystallisation Techniques (AREA)
Description
2 ゲート電極
3 ゲート絶縁膜
4 第1のアモルファスシリコン層
5 ポリシリコン層
6 第2のアモルファスシリコン層
7 n+シリコン層
8 ソース電極
9 ドレイン電極
Claims (5)
- 薄膜トランジスタにおいて、
基板の表面に形成されたゲート電極と、
該ゲート電極の上側に形成されたポリシリコン層と、
該ポリシリコン層を覆うように形成されたアモルファスシリコン層と、
該アモルファスシリコン層の上側に形成されたn+シリコン層と、
該n+シリコン層上に形成されたソース電極及びドレイン電極と
を備え、
前記ポリシリコン層、ソース電極及びドレイン電極を前記基板の表面に射影した射影状態で前記ポリシリコン層の一部と、前記ソース電極及びドレイン電極それぞれの一部とが重なるようにしてあり、
前記射影状態で前記ソース電極及びドレイン電極間に位置する前記ポリシリコン層の、前記ソース電極及びドレイン電極間の長さ方向に直交する幅方向の最小寸法は、前記ソース電極及びドレイン電極の前記幅方向の寸法より小さく、
前記ポリシリコン層は、
前記幅方向の寸法がそれぞれ異なる複数の領域を有することを特徴とする薄膜トランジスタ。 - 前記射影状態で前記ポリシリコン層と、前記ソース電極及びドレイン電極の少なくとも一方とは、1又は複数の前記幅方向の境界線を介して重なるようにしてあり、
前記ポリシリコン層とソース電極との境界線の全長又は前記ポリシリコン層とドレイン電極との境界線の全長は、前記ソース電極又はドレイン電極の前記幅方向の寸法より小さいことを特徴とする請求項1に記載の薄膜トランジスタ。 - 前記ポリシリコン層とソース電極との境界線の全長が、前記ポリシリコン層とドレイン電極との境界線の全長と異なることを特徴とする請求項2に記載の薄膜トランジスタ。
- 前記アモルファスシリコン層は、
前記ポリシリコン層の周囲に形成され該ポリシリコン層の厚みと同程度の厚みを有する第1のアモルファスシリコン層と、
前記ポリシリコン層及び第1のアモルファスシリコン層の表面に形成された第2のアモルファスシリコン層と
を有することを特徴とする請求項1から請求項3までのいずれか1項に記載の薄膜トランジスタ。 - 請求項1から請求項4までのいずれか1項に記載の薄膜トランジスタを備えることを特徴とする表示パネル。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/059702 WO2016157313A1 (ja) | 2015-03-27 | 2015-03-27 | 薄膜トランジスタ及び表示パネル |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2016157313A1 JPWO2016157313A1 (ja) | 2017-06-22 |
JP6334057B2 true JP6334057B2 (ja) | 2018-05-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017508846A Expired - Fee Related JP6334057B2 (ja) | 2015-03-27 | 2015-03-27 | 薄膜トランジスタ及び表示パネル |
Country Status (4)
Country | Link |
---|---|
US (1) | US10243003B2 (ja) |
JP (1) | JP6334057B2 (ja) |
CN (1) | CN106663697B (ja) |
WO (1) | WO2016157313A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6086394B2 (ja) * | 2015-03-11 | 2017-03-01 | 株式会社ブイ・テクノロジー | 薄膜トランジスタ基板、表示パネル、レーザーアニール方法 |
CN106711155B (zh) * | 2017-01-16 | 2020-04-21 | 京东方科技集团股份有限公司 | 一种阵列基板、显示面板及显示装置 |
CN110870078A (zh) * | 2017-07-12 | 2020-03-06 | 堺显示器制品株式会社 | 半导体装置以及其制造方法 |
CN110870077A (zh) * | 2017-07-12 | 2020-03-06 | 堺显示器制品株式会社 | 半导体装置以及其制造方法 |
CN107634011A (zh) * | 2017-09-20 | 2018-01-26 | 武汉华星光电半导体显示技术有限公司 | 一种阵列基板及其制造方法 |
US20210036163A1 (en) * | 2018-03-09 | 2021-02-04 | Sakai Display Products Corporation | Thin film transistor and production method therefor |
JP2020004859A (ja) * | 2018-06-28 | 2020-01-09 | 堺ディスプレイプロダクト株式会社 | 薄膜トランジスタ、表示装置及び薄膜トランジスタの製造方法 |
US11435638B2 (en) * | 2018-09-13 | 2022-09-06 | Sakai Display Products Corporation | Liquid crystal display device |
CN110137261A (zh) | 2018-10-29 | 2019-08-16 | 京东方科技集团股份有限公司 | 薄膜晶体管及其制备方法、阵列基板和显示装置 |
CN115942739B (zh) * | 2023-01-19 | 2023-07-14 | 合肥晶合集成电路股份有限公司 | Sram器件及其制作方法 |
Family Cites Families (17)
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JPH08195495A (ja) * | 1994-05-31 | 1996-07-30 | Sanyo Electric Co Ltd | 半導体装置,半導体装置の製造方法,薄膜トランジスタ,薄膜トランジスタの製造方法,表示装置 |
JPH1050607A (ja) * | 1996-07-31 | 1998-02-20 | Sony Corp | 半導体装置の製造方法 |
JP4436469B2 (ja) * | 1998-09-30 | 2010-03-24 | 三洋電機株式会社 | 半導体装置 |
KR100936908B1 (ko) * | 2003-07-18 | 2010-01-18 | 삼성전자주식회사 | 전계발광 디바이스의 박막 트랜지스터, 이를 이용한전계발광 디바이스 및 이의 제조 방법 |
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TWI256515B (en) * | 2004-04-06 | 2006-06-11 | Quanta Display Inc | Structure of LTPS-TFT and fabricating method thereof |
KR100624314B1 (ko) * | 2005-06-22 | 2006-09-19 | 삼성에스디아이 주식회사 | 발광표시장치 및 박막트랜지스터 |
JP5303119B2 (ja) * | 2007-06-05 | 2013-10-02 | 株式会社ジャパンディスプレイ | 半導体装置 |
JP5226259B2 (ja) | 2007-08-21 | 2013-07-03 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
JP2009099636A (ja) * | 2007-10-15 | 2009-05-07 | Hitachi Displays Ltd | 表示装置および表示装置の製造方法 |
JP5111167B2 (ja) * | 2008-03-06 | 2012-12-26 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
JP2009289874A (ja) * | 2008-05-28 | 2009-12-10 | Sony Corp | 薄膜トランジスタおよび表示装置 |
JP5470519B2 (ja) * | 2009-07-24 | 2014-04-16 | 株式会社ブイ・テクノロジー | 薄膜トランジスタ、その製造方法及び液晶表示装置 |
TWI535028B (zh) * | 2009-12-21 | 2016-05-21 | 半導體能源研究所股份有限公司 | 薄膜電晶體 |
CN103299431B (zh) * | 2011-01-13 | 2016-06-15 | 夏普株式会社 | 半导体装置 |
KR102295477B1 (ko) * | 2014-02-17 | 2021-08-30 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 |
-
2015
- 2015-03-27 CN CN201580040872.3A patent/CN106663697B/zh not_active Expired - Fee Related
- 2015-03-27 WO PCT/JP2015/059702 patent/WO2016157313A1/ja active Application Filing
- 2015-03-27 JP JP2017508846A patent/JP6334057B2/ja not_active Expired - Fee Related
- 2015-03-27 US US15/327,588 patent/US10243003B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20170154901A1 (en) | 2017-06-01 |
CN106663697A (zh) | 2017-05-10 |
CN106663697B (zh) | 2019-11-12 |
WO2016157313A1 (ja) | 2016-10-06 |
JPWO2016157313A1 (ja) | 2017-06-22 |
US10243003B2 (en) | 2019-03-26 |
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