JP2014165310A - 表示装置 - Google Patents
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- JP2014165310A JP2014165310A JP2013034533A JP2013034533A JP2014165310A JP 2014165310 A JP2014165310 A JP 2014165310A JP 2013034533 A JP2013034533 A JP 2013034533A JP 2013034533 A JP2013034533 A JP 2013034533A JP 2014165310 A JP2014165310 A JP 2014165310A
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- 239000012535 impurity Substances 0.000 claims abstract description 35
- 239000004065 semiconductor Substances 0.000 claims abstract description 24
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 5
- 229920005591 polysilicon Polymers 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 11
- 239000010409 thin film Substances 0.000 description 41
- 239000010408 film Substances 0.000 description 19
- 239000004973 liquid crystal related substance Substances 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 7
- 238000002513 implantation Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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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
- H01L27/1222—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
- H01L29/68—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
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78618—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
- H01L29/78621—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile
-
- 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
- H01L29/78645—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with multiple 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
【解決手段】ポリシリコンによって形成された半導体層であって、第1チャネル領域、第2チャネル領域、ソース領域、ドレイン領域、ソース領域と第1チャネル領域との間に位置し不純物濃度がソース領域より低く第1チャネル領域より高い第1領域、第1チャネル領域と第2チャネル領域との間に5μm以上の長さに亘って形成され不純物濃度が第1領域と同等の第2領域、及び、ドレイン領域と第2チャネル領域との間に位置し不純物濃度がドレイン領域より低く第2チャネル領域より高い第3領域を有する半導体層と、半導体層を覆う絶縁膜と、絶縁膜上に形成され第1チャネル領域の上方に位置する第1ゲート電極、及び、第1ゲート電極と電気的に接続され第2チャネル領域の上方に位置する第2ゲート電極と、ソース領域にコンタクトしたソース電極と、ドレイン領域にコンタクトしたドレイン電極と、を備えた表示装置。
【選択図】図2
Description
絶縁基板と、前記絶縁基板の上に位置しポリシリコンによって形成された半導体層であって、第1チャネル領域、第2チャネル領域、ソース領域、ドレイン領域、前記ソース領域と前記第1チャネル領域との間に位置し不純物濃度が前記ソース領域より低く前記第1チャネル領域より高い第1領域、前記第1チャネル領域と前記第2チャネル領域との間に5μm以上の長さに亘って形成され不純物濃度が前記第1領域と同等の第2領域、及び、前記ドレイン領域と前記第2チャネル領域との間に位置し不純物濃度が前記ドレイン領域より低く前記第2チャネル領域より高い第3領域を有する半導体層と、前記半導体層を覆う絶縁膜と、前記絶縁膜上に形成され前記第1チャネル領域の上方に位置する第1ゲート電極、及び、前記第1ゲート電極と電気的に接続され前記第2チャネル領域の上方に位置する第2ゲート電極と、前記ソース領域にコンタクトしたソース電極と、前記ドレイン領域にコンタクトしたドレイン電極と、前記ソース電極と電気的に接続され、映像信号が供給されるソース配線と、前記ドレイン電極と電気的に接続され、映像信号に応じた画素電位が書き込まれる画素電極と、を備えた表示装置が提供される。
TR…薄膜トランジスタ
SC…半導体層
SCS…ソース領域 SCD…ドレイン領域
LDD1…第1領域 LDD2…第2領域 LDD3…第3領域
CH1…第1チャネル領域 CH2…第2チャネル領域
GE1…ゲート電極 GE2…ゲート電極
SE…ソース電極 DE…ドレイン電極
Claims (5)
- 絶縁基板と、
前記絶縁基板の上に位置しポリシリコンによって形成された半導体層であって、第1チャネル領域、第2チャネル領域、ソース領域、ドレイン領域、前記ソース領域と前記第1チャネル領域との間に位置し不純物濃度が前記ソース領域より低く前記第1チャネル領域より高い第1領域、前記第1チャネル領域と前記第2チャネル領域との間に5μm以上の長さに亘って形成され不純物濃度が前記第1領域と同等の第2領域、及び、前記ドレイン領域と前記第2チャネル領域との間に位置し不純物濃度が前記ドレイン領域より低く前記第2チャネル領域より高い第3領域を有する半導体層と、
前記半導体層を覆う絶縁膜と、
前記絶縁膜上に形成され前記第1チャネル領域の上方に位置する第1ゲート電極、及び、前記第1ゲート電極と電気的に接続され前記第2チャネル領域の上方に位置する第2ゲート電極と、
前記ソース領域にコンタクトしたソース電極と、
前記ドレイン領域にコンタクトしたドレイン電極と、
前記ソース電極と電気的に接続され、映像信号が供給されるソース配線と、
前記ドレイン電極と電気的に接続され、映像信号に応じた画素電位が書き込まれる画素電極と、
を備えた表示装置。 - 前記第2領域の長さは、前記第1領域及び前記第3領域のそれぞれの長さよりも長い、請求項1に記載の表示装置。
- 前記第1領域、前記第2領域、及び、前記第3領域のそれぞれの不純物濃度は、1.5×1013/cm2である、請求項1または2に記載の表示装置。
- 前記第1領域及び前記第3領域のそれぞれの長さは、3μmである、請求項1乃至3のいずれか1項に記載の表示装置。
- 前記第2領域は、前記第1チャネル領域及び前記第2チャネル領域のそれぞれの幅よりも細く形成された、請求項1乃至5のいずれか1項に記載の表示装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013034533A JP2014165310A (ja) | 2013-02-25 | 2013-02-25 | 表示装置 |
US14/182,408 US9224756B2 (en) | 2013-02-25 | 2014-02-18 | Display device |
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JP2013034533A JP2014165310A (ja) | 2013-02-25 | 2013-02-25 | 表示装置 |
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JP2014165310A true JP2014165310A (ja) | 2014-09-08 |
JP2014165310A5 JP2014165310A5 (ja) | 2015-08-06 |
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JP2013034533A Pending JP2014165310A (ja) | 2013-02-25 | 2013-02-25 | 表示装置 |
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JP (1) | JP2014165310A (ja) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04344618A (ja) * | 1991-05-21 | 1992-12-01 | Sony Corp | アクティブマトリクス表示装置 |
JPH07147411A (ja) * | 1993-11-24 | 1995-06-06 | Sony Corp | 表示素子基板用半導体装置 |
JPH07263705A (ja) * | 1994-03-24 | 1995-10-13 | Sony Corp | 薄膜トランジスタ |
JPH0864549A (ja) * | 1994-08-24 | 1996-03-08 | Sony Corp | イオンドーピング方法及びイオンドーピング装置 |
JPH10284734A (ja) * | 1997-04-08 | 1998-10-23 | Matsushita Electric Ind Co Ltd | 薄膜トランジスタおよびその製造方法とそれを用いた液晶表示装置 |
US20020167025A1 (en) * | 2001-04-19 | 2002-11-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
JP2003031589A (ja) * | 2001-04-19 | 2003-01-31 | Semiconductor Energy Lab Co Ltd | 半導体装置およびその作製方法 |
JP2004133455A (ja) * | 2002-10-07 | 2004-04-30 | Samsung Sdi Co Ltd | フラットパネルディスプレイ |
US20050012100A1 (en) * | 2003-07-18 | 2005-01-20 | Samsung Sdi Co., Ltd. | Flat panel display |
US20050167662A1 (en) * | 2004-02-04 | 2005-08-04 | Casio Computer Co., Ltd. | Active matrix panel with two thin film transistors to a pixel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05289103A (ja) | 1992-04-08 | 1993-11-05 | Toshiba Corp | 液晶表示装置 |
JP3421580B2 (ja) | 1998-06-22 | 2003-06-30 | 株式会社東芝 | 撮像装置 |
US7579220B2 (en) * | 2005-05-20 | 2009-08-25 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device manufacturing method |
KR101131793B1 (ko) * | 2005-05-31 | 2012-03-30 | 삼성전자주식회사 | 폴리 실리콘형 박막트랜지스터 및 이를 갖는 박막트랜지스터 기판 및 이의 제조 방법 |
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2013
- 2013-02-25 JP JP2013034533A patent/JP2014165310A/ja active Pending
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2014
- 2014-02-18 US US14/182,408 patent/US9224756B2/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04344618A (ja) * | 1991-05-21 | 1992-12-01 | Sony Corp | アクティブマトリクス表示装置 |
JPH07147411A (ja) * | 1993-11-24 | 1995-06-06 | Sony Corp | 表示素子基板用半導体装置 |
JPH07263705A (ja) * | 1994-03-24 | 1995-10-13 | Sony Corp | 薄膜トランジスタ |
JPH0864549A (ja) * | 1994-08-24 | 1996-03-08 | Sony Corp | イオンドーピング方法及びイオンドーピング装置 |
JPH10284734A (ja) * | 1997-04-08 | 1998-10-23 | Matsushita Electric Ind Co Ltd | 薄膜トランジスタおよびその製造方法とそれを用いた液晶表示装置 |
US6034748A (en) * | 1997-04-08 | 2000-03-07 | Matsushita Electric Industrial Co., Ltd. | Thin film transistor, manufacturing method therefor and liquid crystal display unit using the same |
US20020167025A1 (en) * | 2001-04-19 | 2002-11-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
JP2003031589A (ja) * | 2001-04-19 | 2003-01-31 | Semiconductor Energy Lab Co Ltd | 半導体装置およびその作製方法 |
JP2004133455A (ja) * | 2002-10-07 | 2004-04-30 | Samsung Sdi Co Ltd | フラットパネルディスプレイ |
US20050012100A1 (en) * | 2003-07-18 | 2005-01-20 | Samsung Sdi Co., Ltd. | Flat panel display |
US20050167662A1 (en) * | 2004-02-04 | 2005-08-04 | Casio Computer Co., Ltd. | Active matrix panel with two thin film transistors to a pixel |
JP2005223047A (ja) * | 2004-02-04 | 2005-08-18 | Casio Comput Co Ltd | アクティブマトリクスパネル |
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US20140239304A1 (en) | 2014-08-28 |
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