Inverted Transistor Structure Patents (Class 438/158)
  • Publication number: 20140038370
    Abstract: A thin film transistor substrate and a method for manufacturing the same are discussed, in which the thin film transistor comprises a gate line and a data line arranged on a substrate to cross each other; a gate electrode connected with the gate line below the gate line; an active layer formed on the gate electrode; an etch stopper formed on the active layer; an ohmic contact layer formed on the etch stopper; source and drain electrodes formed on the ohmic contact layer; and a pixel electrode connected with the drain electrode. It is possible to prevent a crack from occurring in the gate insulating film during irradiation of the laser and prevent resistance of the gate electrode from being increased.
    Type: Application
    Filed: October 7, 2013
    Publication date: February 6, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventor: KiTae KIM
  • Publication number: 20140038371
    Abstract: A TFT LCD array substrate and a manufacturing method thereof. The manufacturing method steps are: forming a thin film transistor on a substrate to form a gate line and a gate electrode connected with the gate line on the substrate; forming a gate insulating layer and a semiconductor layer on the gate electrode; forming an ohmic contact layer on the semiconductor layer; forming a transparent pixel electrode layer and a source/drain electrode metal layer in sequence on the resultant substrate, wherein the transparent pixel electrode layer is electrically insulated from the gate line and the gate electrode, and the transparent pixel electrode layer forms an ohmic contact with two sides of the semiconductor layer via the ohmic contact layer; and performing masking and etching with a gray tone mask with respect to the resultant substrate to form a transparent pixel electrode, a source/drain electrode and a data line simultaneously.
    Type: Application
    Filed: October 17, 2013
    Publication date: February 6, 2014
    Applicant: Beijing BOE Optoelectronics Technology Co., LTD
    Inventors: Chaoyong DENG, Seung Moo RIM
  • Patent number: 8642412
    Abstract: An object is to provide a semiconductor device with stable electric characteristics in which an oxide semiconductor is used. An impurity such as hydrogen or moisture (e.g., a hydrogen atom or a compound containing a hydrogen atom such as H2O) is eliminated from an oxide semiconductor layer with use of a halogen element typified by fluorine or chlorine, so that the impurity concentration in the oxide semiconductor layer is reduced. A gate insulating layer and/or an insulating layer provided in contact with the oxide semiconductor layer can be formed to contain a halogen element. In addition, a halogen element may be attached to the oxide semiconductor layer through plasma treatment under an atmosphere of a gas containing a halogen element.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: February 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kunihiko Suzuki, Masahiro Takahashi
  • Patent number: 8642380
    Abstract: An object is to provide a manufacturing method of a semiconductor device having a high field effect mobility and including an oxide semiconductor layer in a semiconductor device including an oxide semiconductor. Another object is to provide a manufacturing method of a semiconductor device capable of high speed operation. An oxide semiconductor layer is terminated by a halogen element, and thus an increase in the contact resistance between the oxide semiconductor layer and a conductive layer in contact with the oxide semiconductor layer is suppressed. Therefore, the contact resistance between the oxide semiconductor layer and the conductive layer becomes favorable and a transistor having a high field effect mobility can be manufactured.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: February 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Kosei Noda
  • Publication number: 20140030857
    Abstract: A graphene device manufacturing apparatus includes an electrode, a graphene structure including a metal catalyst layer formed on a substrate, a protection layer, and a graphene layer between the protection layer and the metal catalyst layer, a power unit configured to apply a voltage between the electrode and the metal catalyst layer, and an electrolyte in which the graphene structure is at least partially submerged.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 30, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-ho LEE, Yong-seok JUNG, Yong-sung KIM, Chang-seung LEE, Chang-youl MOON
  • Publication number: 20140027761
    Abstract: A thin film transistor substrate includes a substrate and a plurality of thin film transistors. The thin film transistor includes a first electrode layer, a first insulating layer, an oxide semiconductor layer, a second electrode layer and a second insulating layer. The first electrode layer with gate portions is formed on the substrate. The first insulating layer covers the first electrode layer. The oxide semiconductor layer is formed on the first insulating layer, and the oxide semiconductor layer comprises a first boundary. The second electrode layer with drain portions and source portions is formed on the oxide semiconductor layer, wherein the drain portion and the corresponding source are corresponding gate portion, and the drain portion comprises a second boundary. The second insulating layer covers the oxide semiconductor layer and the second electrode layer. The second boundary is within the first boundary. The second electrode layer includes copper.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 30, 2014
    Inventor: Cheng-Hsu Chou
  • Patent number: 8637355
    Abstract: Actuating a semiconductor device includes providing a transistor that includes a substrate and a first electrically conductive material layer, including a reentrant profile, positioned on the substrate. An electrically insulating material layer is conformally positioned over the first electrically conductive material layer and at least a portion of the substrate. A semiconductor material layer conforms to and is in contact with the electrically insulating material layer. A second electrically conductive material layer and third electrically conductive material layer are nonconformally positioned over and in contact with a first portion of the semiconductor material layer and a second portion of the semiconductor material layer, respectively.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 28, 2014
    Assignee: Eastman Kodak Company
    Inventors: Shelby F. Nelson, Lee W. Tutt
  • Patent number: 8637343
    Abstract: The invention relates to a process for preparing an electronic device using a protection layer, and to improved electronic devices prepared by this process, in particular organic field effect transistors (OFETs).
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 28, 2014
    Assignee: Merck Patent GmbH
    Inventors: David Christoph Mueller, Toby Cull, Simon Dominic Ogier
  • Publication number: 20140021457
    Abstract: A thin film transistor according to the present disclosure including: a gate electrode above a substrate; a gate insulating layer covering the gate electrode; a semiconductor layer above the gate insulating layer; and a source electrode and a drain electrode which are above the gate insulating layer, and electrically connected to the semiconductor layer, in which the gate insulating layer includes a first area and a second area, the first area being above the gate electrode, the second area being different from an area above the gate electrode, and made of a same substance as the first area, and the first area has a higher density than a density of the second area.
    Type: Application
    Filed: September 24, 2013
    Publication date: January 23, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takaaki UKEDA, Akihito MIYAMOTO, Norishige NANAI
  • Patent number: 8633486
    Abstract: Disclosed is a transistor structure including: a first thin film transistor including, a first gate electrode; a first insulating film which covers the first gate electrode; and a first semiconductor film formed on the first insulating film in a position corresponding to the first gate electrode; and a second thin film transistor including, a second semiconductor film formed on the first insulating film; a second insulating film which covers the second semiconductor film; and a second gate electrode formed in a position corresponding to a channel portion of the second semiconductor film on the second insulating film, wherein the first semiconductor film and the second semiconductor film include a first portion on the first insulating film side and a second portion on the opposite surface side, and one of the first portion or the second portion has a higher degree of crystallization of silicon compared to the other.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: January 21, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Kazuto Yamamoto
  • Patent number: 8633068
    Abstract: A method of actuating a semiconductor device includes providing a transistor including a substrate and a first electrically conductive material layer stack positioned on the substrate. The first electrically conductive material layer stack includes a reentrant profile. A second electrically conductive material layer includes first and second discrete portions in contact with first and second portions of a semiconductor material layer that conforms to the reentrant profile and is in contact with an electrically insulating material layer that conforms to the reentrant profile. A voltage is applied between the first discrete portion and the second discrete portion of the second electrically conductive material layer. A voltage is applied to the first electrically conductive material layer stack to modulate a resistance between the first discrete portion and the second discrete portion of the second electrically conductive material layer.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 21, 2014
    Assignee: Eastman Kodak Company
    Inventors: Lee W. Tutt, Shelby F. Nelson
  • Patent number: 8633043
    Abstract: A method of fabricating a fringe field switching (FFS)-liquid crystal display (LCD) device may have the following advantage. An inferior connection between the drain electrode and the pixel electrode may be prevented by preventing formation of a copper compound on the drain electrode, by performing a back channel etching after patterning a pixel electrode, and by performing a wet strip rather than a dry strip. This may result in a direct contact between copper and ITO, thereby reducing the number of mask processes.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 21, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Soo Cho, Young-Seok Choi, Dong-Hee Kim, Kyo-Ho Moon, Chul-Tae Kim, Kyu-Sun Choi
  • Patent number: 8633069
    Abstract: A manufacturing method for an array substrate comprising: sequentially forming a gate metal film, a gate insulating layer and an active layer film; applying photoresist, and patterning the photoresist; etching the stacked layers corresponding to a photoresist-completely-removed region; ashing to remove the photoresist in a photoresist-partially-remained region and remain a part of photoresist in a photoresist-completely-remained region, etching the gate insulating layer and the active layer film in the photoresist-partially-remained region; forming an insulating layer film; lifting off the photoresist and the insulating layer film thereon; forming a conductive film, and patterning the conductive film to from a source electrode, a drain electrode, a data line, a pixel electrode and an active layer channel.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 21, 2014
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Wenbo Li, Gang Wang, Zhuo Zhang, Yanbing Wu
  • Patent number: 8633044
    Abstract: In a display region of an active matrix substrate, an interlayer insulating film made of a photosensitive organic insulating film, an insulating film different from the interlayer insulating film, and a plurality of pixel electrodes formed on a surface of the interlayer insulating film are provided. In a non-display region of the active matrix substrate, a lead line extended from the display region is formed. In a formation region for a sealing member, the interlayer insulating film is removed, the insulating film is provided to cover part of the lead line, and the sealing member is formed directly on a surface of the insulating film.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: January 21, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihito Hara, Yukinobu Nakata
  • Publication number: 20140014942
    Abstract: A bottom gate bottom contact thin-film transistor including a gate electrode, a source electrode, a drain electrode, a dielectric layer and a semiconductor layer of a semiconducting oxide is disclosed. The dielectric layer is arranged between the gate electrode and the semiconductor layer structure, and the source electrode and the drain electrode are covered with said semiconductor layer structure. The source electrode and the drain electrode include at least a first electrode portion of an oxygen reducing material, and a second electrode portion of an additional material different from said oxygen reducing material wherein the second electrode portion of the drain at a side facing the source exposes to said semiconductor layer structure at least a surface portion of a main surface of its first electrode portion facing away from the dielectric layer.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Applicant: POLYMER VISION B.V.
    Inventor: Joris P.V. Maas
  • Publication number: 20140017860
    Abstract: A semiconductor device includes an oxide semiconductor layer including a channel formation region which includes an oxide semiconductor having a wide band gap and a carrier concentration which is as low as possible, and a source electrode and a drain electrode which include an oxide conductor containing hydrogen and oxygen vacancy, and a barrier layer which prevents diffusion of hydrogen and oxygen between an oxide conductive layer and the oxide semiconductor layer. The oxide conductive layer and the oxide semiconductor layer are electrically connected to each other through the barrier layer.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Kengo AKIMOTO
  • Patent number: 8629438
    Abstract: Disclosed is a semiconductor device including an oxide semiconductor film. A first oxide semiconductor film with a thickness of greater than or equal to 2 nm and less than or equal to 15 nm is formed over a gate insulating layer. First heat treatment is performed so that crystal growth from a surface of the first oxide semiconductor film to the inside thereof is caused, whereby a first crystal layer is formed. A second oxide semiconductor film with a thickness greater than that of the first oxide semiconductor film is formed over the first crystal layer. Second heat treatment is performed so that crystal growth from the first crystal layer to a surface of the second oxide semiconductor film is caused, whereby a second crystal layer is formed. Further, oxygen doping treatment is performed on the second crystal layer.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: January 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 8629445
    Abstract: Provided are a semiconductor device with less leakage current is reduced, a semiconductor device with both of high field effect mobility and low leakage current, an electronic appliance with low power consumption, and a manufacturing method of a semiconductor device in which leakage current can be reduced without an increase in the number of masks. The side surface of a semiconductor layer formed of a semiconductor film having high carrier mobility is not in contact with any of a source electrode and a drain electrode. Further, such a transistor structure is formed without an increase in the number of photomasks and can be applied to an electronic appliance.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: January 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tetsuhiro Tanaka, Ryo Tokumaru
  • Patent number: 8629000
    Abstract: In a thin film transistor, an increase in off current or negative shift of the threshold voltage is prevented. In the thin film transistor, a buffer layer is provided between an oxide semiconductor layer and each of a source electrode layer and a drain electrode layer. The buffer layer includes a metal oxide layer which is an insulator or a semiconductor over a middle portion of the oxide semiconductor layer. The metal oxide layer functions as a protective layer for suppressing incorporation of impurities into the oxide semiconductor layer. Therefore, in the thin film transistor, an increase in off current or negative shift of the threshold voltage can be prevented.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshikazu Kondo, Hideyuki Kishida
  • Publication number: 20140011329
    Abstract: Disclosed is a method for manufacturing a self-aligned metal oxide thin film transistor. According to the present invention, a metal oxide semiconductor layer having a high carrier concentration is formed, and then a channel region which is self-aligned with a gate electrode is oxidized by a plasma having oxidbillity so that the channel region has a low carrier concentration and the source and drain regions have high carrier concentrations while the resulting transistor has a self-aligned structure. In addition, the threshold voltage of the transistor is controlled by the conditions under which the channel region of the transistor is subsequently oxidized by plasma having oxidbillity at a low temperature. Therefore, the controllability of the characteristics of the transistor is improved significantly, and the manufacturing process is simplified.
    Type: Application
    Filed: June 13, 2011
    Publication date: January 9, 2014
    Applicant: Peking University Shenzhen Graduate School
    Inventors: Shengdong Zhang, Xin He, Yi Wang, Dedong Han, Ruqi Han
  • Publication number: 20140008656
    Abstract: An array substrate for the liquid crystal display device, the array substrate includes: a first insulating film pattern on an insulating substrate and having an opening; a first light shielding film pattern on the first insulating film pattern including the opening; a gate insulating film over the entire surface of the insulating substrate including the first light shielding film pattern; an active layer on top of the gate insulating film and overlapping the first light shielding film pattern; a pixel electrode on top of the gate insulating film to be separated from the active layer; a source electrode and a drain electrode on top of the active layer, the drain electrode being separated from the source electrode and directly connected to the pixel electrode; a passivation film over the entire surface of the insulating substrate including the source electrode and the drain electrode; a second insulating film pattern on top of the passivation film and overlapping the first light shielding film pattern; a second
    Type: Application
    Filed: December 28, 2012
    Publication date: January 9, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: YuRi Shim, SungGu Kang, EuiHyun Chung, SunYong Lee
  • Publication number: 20140011330
    Abstract: The present application discloses a method for manufacturing a semiconductor device. The method may comprise providing a fin in a semiconductor layer of a SOI substrate, and providing a stack of gate dielectric and gate conductor on only a first side of the fin. The gate conductor may extend laterally away from the first side of the fm in a gate extending direction. The method may comprise doping the fin at its other two opposing sides so as to provide a source region and a drain region. Each of the source and drain regions may have a portion extending laterally away from a second side, opposite to the first side, of the fin in a source/drain extending direction. The gate extending direction and the source/drain extending direction can be parallel to the main surface of the SOI substrate, while being opposite to each other. The method may comprise providing a channel region at a central portion of the fin.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 9, 2014
    Inventor: Huilong Zhu
  • Publication number: 20140008645
    Abstract: A thin film transistor substrate and a method for manufacturing the same are disclosed. The thin film transistor substrate includes a gate electrode disposed on a substrate, a gate insulating film disposed on the gate electrode, an active layer disposed on the gate insulating film and including metal oxide, a source electrode contacted with one side of the active layer and a pixel electrode contacted with the other side of the active layer; and an etch stopper interposed between the source electrode and the pixel electrode.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 9, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Sanghee Yu
  • Patent number: 8624238
    Abstract: A thin-film transistor (TFT) substrate having reduced defects is fabricated using a reduced number of masks. The TFT substrate includes gate wiring formed on a substrate. The gate wiring includes a gate electrode. A semiconductor pattern is formed on the gate wiring. An etch-stop pattern is formed on the semiconductor pattern. Data wiring includes a source electrode which is formed on the semiconductor pattern and the etch-stop pattern. Each of the gate wiring and the data wiring includes a copper-containing layer and a buffer layer formed on or under the copper-containing layer.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-In Kim, Young-Wook Lee, Jean-Ho Song, Jae-Hyoung Yoon, Sung-Ryul Kim, Byeong-Beom Kim, Je-Hyeong Park, Woo-Geun Lee
  • Patent number: 8624253
    Abstract: To improve the reliability of contact with an anisotropic conductive film in a semiconductor device such as a liquid crystal display panel, a terminal portion of a connecting wiring on an active matrix substrate is electrically connected to an FPC by an anisotropic conductive film. The connecting wiring is made of a lamination film of a metallic film and a transparent conductive film. In the connecting portion with the anisotropic conductive film, a side surface of the connecting wiring is covered with a protecting film made of an insulating material, thereby exposure to air of the metallic film can be avoided.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: January 7, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Publication number: 20140004667
    Abstract: A method for processing a substrate, the substrate comprising an organic film pattern, the method comprising: a fusion/deformation step of fusing said organic film pattern to deform the fused organic film pattern and a third removal step of removing at least a part of the fused and deformed organic film pattern.
    Type: Application
    Filed: March 21, 2013
    Publication date: January 2, 2014
    Applicant: Gold Charm Limited
    Inventor: Gold Charm Limited
  • Publication number: 20140001441
    Abstract: A nanowire device having a plurality of internal spacers and a method for forming said internal spacers are disclosed. In an embodiment, a semiconductor device comprises a nanowire stack disposed above a substrate, the nanowire stack having a plurality of vertically-stacked nanowires, a gate structure wrapped around each of the plurality of nanowires, defining a channel region of the device, the gate structure having gate sidewalls, a pair of source/drain regions on opposite sides of the channel region; and an internal spacer on a portion of the gate sidewall between two adjacent nanowires, internal to the nanowire stack. In an embodiment, the internal spacers are formed by depositing spacer material in dimples etched adjacent to the channel region. In an embodiment, the dimples are etched through the channel region. In another embodiment, the dimples are etched through the source/drain region.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Inventors: Seiyon Kim, Kelin J. Kuhn, Tahir Ghani, Anand S. Murthy, Mark Armstrong, Rafael Rios, Abhijit Jayant Pethe, Willy Rachmady
  • Publication number: 20140001475
    Abstract: A manufacturing method of the array substrate includes the steps: A. A first mask manufacturing process is adopted to from scan lines and thin film transistor (TFT) gates on a surface of a substrate. B. A second mask manufacturing process is adopted to form scan lines and data lines of the array substrate, a source electrode and a drain electrode of TFT and a conducting channel positioned between the source electrode and the drain electrode. C. A photoresistor formed in the second mask manufacturing process is incinerated, and then, an a-Si film is paved on the surface of the array substrate. D. The photoresistor is stripped to form an undoped active layer. E. A third mask manufacturing process is adopted to form a transparent conducting layer on the surface of the drain electrode of the TFT. Only three mask manufacturing process in the present disclosure are needed to manufacture the entire array substrate.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 2, 2014
    Inventor: Jun Wang
  • Publication number: 20140004666
    Abstract: A transistor device is fabricated, in one embodiment, by providing an insulator on a substrate and forming a gate embedded in the insulator. A dielectric material is deposited over the gate and insulator forming a dielectric layer. A channel comprising carbon nanotubes is formed on the dielectric layer over the gate. A self-assembled monolayer is formed over at least the channel.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 2, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aaron D. FRANKLIN, Shu-Jen HAN, George S. TULEVSKI
  • Patent number: 8617944
    Abstract: An etchant composition for etching a transparent electrode is provided, the etchant composition includes an inorganic acid, an ammonium (NH4+)-containing compound, a cyclic amine compound, and the remaining amount of water.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 31, 2013
    Assignees: Dongwood Fine-Chem Co., Ltd., Samsung Display Co., Ltd.
    Inventors: Byeong-Jin Lee, Hong-Sik Park, Sang-Tae Kim, Joon-Woo Lee, Young-Chul Park, Young-Jun Jin, Suck-Jun Lee, Seung-Jae Yang, O-Byoung Kwon, In-Ho Yu, Sang-Hoon Jang, Min-Ki Lim, Hye-Ra Shin, Yu-Jin Lee
  • Patent number: 8617943
    Abstract: A method for fabricating a flexible semiconductor device includes: preparing a layered film 80 including a first metal layer 10, an inorganic insulating layer 20, a semiconductor layer 30, and a second metal layer 40 which are sequentially formed; etching the first metal layer 10 to form a gate electrode 12g; compression bonding a resin layer 50 to a surface of the layered film 80 provided with the gate electrode 12g to allow the gate electrode 12g to be embedded in the resin layer 50; and etching the second metal layer 40 to form a source electrode 42s and a drain electrode 42d, wherein the inorganic insulating layer 20 on the gate electrode 12g functions as a gate insulating film 22, and the semiconductor layer 30 between the source electrode 42s and drain electrode 42d on the inorganic insulating layer 20 functions as a channel 32.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 31, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Ichiryu, Seiichi Nakatani, Koichi Hirano, Yoshihisa Yamashita, Shingo Komatsu
  • Publication number: 20130341624
    Abstract: The present disclosure relates to a thin film transistor substrate with a metal oxide semiconductor layer that has enhanced characteristics and stability. The present disclosure also relates to a method for manufacturing a thin film transistor substrate in which a thermal treatment is conducted for the metal oxide semiconductor layer and the damages to the substrate by the thermal treatment are minimized.
    Type: Application
    Filed: December 17, 2012
    Publication date: December 26, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kisul Cho, Seongmoh Seo
  • Publication number: 20130334513
    Abstract: A thin film transistor element is formed in each of a first aperture and a second aperture defined by partition walls, which further define a third aperture that is adjacent to the first aperture with a gap therebetween and is located in a direction, from the first aperture, differing from a direction of the second aperture. In plan view, at a bottom portion of the first aperture, a center of area of a liquid-philic layer portion is offset from a center of area of the bottom portion in a direction differing from a direction of the third aperture, and at a bottom portion of one of the first and second apertures, a center of area of a liquid-philic layer portion is offset from a center of area of the bottom portion in a direction differing from a direction of the other one of the first and second apertures.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Yuko OKUMOTO, Akihito MIYAMOTO, Takaaki UKEDA
  • Publication number: 20130334530
    Abstract: The invention provides a thin film transistor that can reduce an off-current flowing in end-parts in a channel width direction of a channel layer and a manufacturing method therefor. Widths of a source electrode (160a) and a drain electrode (160b) are smaller than a width of a channel layer (140). Accordingly, in the channel layer (140), low resistance regions (140b) are formed to surround respectively the source electrode (160a) and the drain electrode (160b). A high resistance region (140a) having a higher resistance value than those of the low resistance regions (140b) remains not only in the region sandwiched between the two low resistance regions (140b), but also in the end parts in the channel width direction. As a result, in a TFT (100), the high resistance region (140a) is extended not only to the channel region sandwiched between the source electrode (160a) and the drain electrode (160b), but also to the end parts in the channel width direction.
    Type: Application
    Filed: March 2, 2012
    Publication date: December 19, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Sumio Katoh, Hidehito Kitakado
  • Publication number: 20130337617
    Abstract: A liquid crystal display device includes a gate line and a gate electrode connected to the gate line, on a substrate; a gate insulating layer on the gate electrode and the gate line; an active layer on the gate insulating layer over the gate electrode; an ohmic contact layer on the active layer; first source and drain electrodes on the ohmic contact layer; second source and drain electrodes connected to the first source and drain electrodes, respectively; a data line extending from the source electrode and crossing the gate line to define a pixel region; and a pixel electrode in the pixel region and extending from the second drain electrode.
    Type: Application
    Filed: June 26, 2013
    Publication date: December 19, 2013
    Inventor: Dong-Young Kim
  • Publication number: 20130337618
    Abstract: A device with reduced gate resistance includes a gate structure having a first conductive portion and a second conductive portion formed in electrical contact with the first conductive portion and extending laterally beyond the first conductive portion. The gate structure is embedded in a dielectric material and has a gate dielectric on the first conductive portion. A channel layer is provided over the first conductive portion. Source and drain electrodes are formed on opposite end portions of a channel region of the channel layer. Methods for forming a device with reduced gate resistance are also provided.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: SHU-JEN HAN, ALBERTO VALDES GARCIA
  • Patent number: 8609477
    Abstract: A manufacturing method for an array substrate with a fringe field switching (FFS) type thin film transistor (TFT) liquid crystal display (LCD) includes the following steps. A pattern of a gate line (1), a gate electrode, a common electrode (6) and a common electrode line (5) is formed by patterning a first transparent conductive film and a first metal film formed successively on a transparent substrate. Contact holes of the gate line in the pad area and a semiconductor pattern are formed through a patterning process after a gate insulator film, and a semiconductor film and a doped semiconductor film are formed successively. A second metal film is deposited and patterned. A second transparent conductive film is deposited and a lift-off process is performed. And then, a pattern of a source electrode, a drain electrode, a TFT channel and a pixel electrode (4) is formed by etching the exposed second metal film and the doped semiconductor film.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: December 17, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Youngsuk Song, Seungjin Choi, Seongyeol Yoo
  • Patent number: 8610127
    Abstract: A thin film transistor array substrate is disclosed. The thin film transistor array substrate includes: gate lines and data lines formed to cross each other in the center of a gate insulation film on a substrate and to define pixel regions; a thin film transistor formed at each intersection of the gate and data lines; a passivation film formed on the thin film transistors; a pixel electrode formed on each of the pixel regions and connected to the thin film transistor through the passivation film; a gate pad connected to each of the gate lines through a gate linker; and a data pad connected to each of the data lines through a data linker. The data pad is formed of a gate pattern, and the data line is formed of a data pattern. The data linker is configured to connect the data pad formed of the gate pattern with the data line formed of the data pattern using a connection wiring.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: December 17, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Chung Wan Oh, Jae Chang Kwon, Yu Ri Shim, Chang Yeop Shin, Dong Eok Kim
  • Publication number: 20130328049
    Abstract: A thin-film transistor substrate includes a gate line, and a gate electrode connected to the gate line, on a base substrate; an insulating layer on the gate electrode, the insulating layer including a first part and a second part, the first part having a hydrophobic property and the second part having a hydrophilic property; a data line extended in a different direction from the gate line, and a source electrode connected to the data line and on the second part of the insulating layer; a drain electrode on the second part of the insulating layer, the drain electrode spaced apart from the source electrode; a semi-conductor pattern overlapping the source electrode, the drain electrode and a gap between the spaced apart source and drain electrodes, where the semi-conductor pattern exposes the first part of the insulating layer; and a pixel electrode in contact with the drain electrode.
    Type: Application
    Filed: October 16, 2012
    Publication date: December 12, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae-Young CHOI, Bo-Sung KIM
  • Publication number: 20130328034
    Abstract: In a thin film transistor device, partition walls define first, second, and third apertures. In plan view, at a bottom portion of the first aperture, a center of a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction differing from a direction of the third aperture, and at a bottom portion of one of the first and second apertures, a center a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction differing from a direction of the other one of the first and second apertures.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 12, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Yuko OKUMOTO, Akihito MIYAMOTO, Takaaki UKEDA
  • Publication number: 20130328033
    Abstract: A thin film transistor element is formed in each of adjacent first and second apertures defined by partition walls. In plan view of a bottom portion of the first aperture, a center of a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction opposite a direction of the second aperture, and in plan view of a bottom portion of the second aperture, a center of a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction opposite a direction of the first aperture.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 12, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Yuko OKUMOTO, Akihito MIYAMOTO, Takaaki UKEDA
  • Patent number: 8603843
    Abstract: Disclosed is a method for manufacturing an array substrate of an FFS type TFT-LCD, comprising the steps of: forming a first transparent conductive film, a first metal film and an impurity-doped semiconductor film on a transparent substrate sequentially, and then patterning the stack of the films to form patterns including source electrodes, drain electrodes, data lines and pixel electrodes; forming a semiconductor film and patterning it to form a pattern of the impurity-doped semiconductor layer and a pattern of the semiconductor layer including TFT channels; forming an insulating film and a second metal film, and patterning the stack of the films to form patterns including connection holes of the data lines in a PAD region, gate lines, gate electrodes and common electrode lines; forming a second transparent conductive film, and patterning it to form patterns including the common electrode.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: December 10, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Youngsuk Song, Seungjin Choi, Seongyeol Yoo
  • Patent number: 8603869
    Abstract: Provided are thin film transistor, a method of fabricating the same, a flat panel display device including the same, and a method of fabricating the flat panel display device, that are capable of applying an electric field to a gate line to form a channel region of a semiconductor layer of a thin film transistor using a polysilicon layer crystallized by a high temperature heat generated by Joule heating of a conductive layer. As a result, a process can be simplified using a gate line included in the thin film transistor as the conductive layer, and the channel region of the semiconductor layer can be formed of polysilicon having a uniform degree of crystallinity. The thin film transistor includes a straight gate line disposed in one direction, a semiconductor layer crossing the gate line, and source and drain electrodes connected to source and drain regions of the semiconductor layer.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: December 10, 2013
    Assignee: Ensiltech Corporation
    Inventors: Jae-Sang Ro, Won-Eui Hong
  • Publication number: 20130320345
    Abstract: In a method of forming an active pattern, a gate metal layer is formed on a base substrate. The gate metal layer is patterned to form a gate line, and a gate pattern spaced apart from the gate line. A gate insulation layer is formed on the base substrate including the gate line and the gate pattern thereon, to form a first protruded boundary surface corresponding to an area including the gate pattern. An amorphous semiconductor layer is formed on the base substrate including the gate insulation layer thereon, to form a second protruded boundary surface corresponding to the first protruded boundary surface. The amorphous semiconductor layer is crystallized by illuminating a laser to the amorphous semiconductor layer on the second protruded boundary surface.
    Type: Application
    Filed: October 22, 2012
    Publication date: December 5, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wan-Soon Im, Young-Goo SONG, Hwa-Dong JUNG
  • Publication number: 20130323889
    Abstract: The present invention provides a pixel structure including a substrate, a patterned electrode disposed on the substrate, a first insulating layer disposed on the patterned electrode, a common electrode disposed on the first insulating layer, a second insulating layer disposed on the common electrode, and a drain disposed on the second insulating layer. The first insulating layer has a first through hole, and the second insulating layer has a second through hole. The drain includes a first portion electrically connected to the patterned electrode via the first through hole and the second through hole, and a second portion extending onto the common electrode. The common electrode is coupled with the patterned electrode to form a first storage capacitor and is coupled with the second portion to form a second storage capacitor.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 5, 2013
    Applicant: AU Optronics Corp.
    Inventors: Chien-Chih Lee, Pei-Yi Shen, Ching-Yang Cheng, Shu-Ming Huang
  • Patent number: 8597968
    Abstract: An active device array substrate is provided. First, a substrate having a display area and a sensing area is provided. Then, a first patterned conductor layer is disposed on the display area of the substrate. A gate insulator is disposed on the substrate. A patterned semiconductor layer, a second patterned conductor layer and a patterned photosensitive dielectric layer are disposed on the gate insulator, wherein the second patterned conductor layer includes a source electrode, a drain electrode and a lower electrode, the patterned photosensitive dielectric layer covering the second patterned conductor layer includes an interface protection layer disposed on the source electrode and the drain electrode and a photo-sensing layer disposed on the lower electrode. A passivation layer is then disposed on the substrate. After that, a third patterned conductor layer including a pixel electrode and an upper electrode is disposed on the passivation layer.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 3, 2013
    Assignee: Au Optronics Corporation
    Inventors: Yu-Cheng Chen, Chen-Yueh Li, Ching-Sang Chuang, Ching-Chieh Shih, An-Thung Cho
  • Patent number: 8597992
    Abstract: A transistor is manufactured by a method including: forming a first wiring layer; forming a first insulating film to cover the first wiring layer; forming a semiconductor layer over the first insulating film; forming a conductive film over the semiconductor layer; and performing at least two steps of etching on the conductive film to form second wiring layers which are apart from each other, wherein the two steps of etching include at least a first etching process performed under the condition that the etching rate for the conductive film is higher than the etching rate for the semiconductor layer, and a second etching process performed under the condition that the etching rates for the conductive film and the semiconductor layer are higher than those of the first etching process.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: December 3, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shinya Sasagawa, Masashi Tsubuku, Hitoshi Nakayama, Daigo Shimada
  • Patent number: 8597977
    Abstract: In a thin film transistor which uses an oxide semiconductor, buffer layers containing indium, gallium, zinc, oxygen, and nitrogen are provided between the oxide semiconductor layer and the source and drain electrode layers.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: December 3, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Tetsunori Maruyama, Yuki Imoto, Yuji Asano, Junichi Koezuka
  • Patent number: 8598584
    Abstract: In the thin-film transistor device: the stacked thickness of either a source electrode or a drain electrode and a corresponding one of silicon layers is the same value or a value close to the same value as the stacked thickness of a first channel layer and a second channel layer; the stacked thickness of the first channel layer and the second channel layer is the same in a region between the source electrode and the drain electrode and above the source electrode and the drain electrode; the first channel layer and the second channel layer are sunken in the region between the source electrode and the drain electrode, following a shape between the source electrode and the drain electrode; and the gate electrode has one region overlapping with the source electrode and an other region overlapping with the drain electrode.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: December 3, 2013
    Assignees: Panasonic Corporation, Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hisao Nagai, Sadayoshi Hotta, Genshiro Kawachi
  • Patent number: 8598581
    Abstract: A method for manufacturing a thin film transistor array panel includes; forming a gate line including a gate electrode and a height increasing member on a substrate, forming a gate insulating layer on the gate line and the height increasing member, forming a semiconductor, a data line including a source electrode, and a drain electrode facing the source electrode and overlapping at least a portion of the height increasing member on the gate insulating layer, forming a first insulating layer on the gate insulating layer, a data line and the drain electrode, forming a light-blocking member on a portion of the first insulating layer corresponding to the gate line and the data line, forming a color filter in an area bound by the light-blocking member, forming a second insulating layer on the light-blocking member and the color filter, and patterning the second insulating layer, the light-blocking member or the color filter, and the first insulating layer to form a contact hole exposing a portion of the drain elec
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-Soo Kim, Jae-Hyoung Youn, Sang-Soo Kim, Dong-Gyu Kim