Having Insulated Gate Patents (Class 438/151)
  • Patent number: 8686417
    Abstract: An object is to manufacture a semiconductor device including an oxide semiconductor at low cost with high productivity in such a manner that a photolithography process is simplified by reducing the number of light-exposure masks. In a method for manufacturing a semiconductor device including a channel-etched inverted-staggered thin film transistor, an oxide semiconductor film and a conductive film are etched using a mask layer formed with the use of a multi-tone mask which is a light-exposure mask through which light is transmitted so as to have a plurality of intensities. In etching steps, a first etching step is performed by wet etching in which an etchant is used, and a second etching step is performed by dry etching in which an etching gas is used.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 1, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideomi Suzawa, Shinya Sasagawa, Taiga Muraoka, Shunichi Ito, Miyuki Hosoba
  • Publication number: 20140084248
    Abstract: A semiconductor structure including nanotubes forming an electrical connection between electrodes is disclosed. The semiconductor structure may include an open volume defined by a lower surface of an electrically insulative material and sidewalls of at least a portion of each of a dielectric material and opposing electrodes. The nanotubes may extend between the opposing electrodes, forming a physical and electrical connection therebetween. The nanotubes may be encapsulated within the open volume in the semiconductor structure. A semiconductor structure including nanotubes forming an electrical connection between source and drain regions is also disclosed. The semiconductor structure may include at least one semiconducting carbon nanotube electrically connected to a source and a drain, a dielectric material disposed over the at least one semiconducting carbon nanotube and a gate dielectric overlying a portion of the dielectric material. Methods of forming the semiconductor structures are also disclosed.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: Micron Technology, Inc.
    Inventors: Eugene P. Marsh, Gurtej S. Sandhu
  • Publication number: 20140084342
    Abstract: Strained gate-all-around semiconductor devices formed on globally or locally isolated substrates are described. For example, a semiconductor device includes a semiconductor substrate. An insulating structure is disposed above the semiconductor substrate. A three-dimensional channel region is disposed above the insulating structure. Source and drain regions are disposed on either side of the three-dimensional channel region and on an epitaxial seed layer. The epitaxial seed layer is composed of a semiconductor material different from the three-dimensional channel region and disposed on the insulating structure. A gate electrode stack surrounds the three-dimensional channel region with a portion disposed on the insulating structure and laterally adjacent to the epitaxial seed layer.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Inventors: Annalisa Cappellani, Abhijit Jayant Pethe, Tahir Ghani, Harry Gomez
  • Publication number: 20140087524
    Abstract: The substrate successively includes a support substrate, an electrically insulating layer, a semiconductor material layer, and a gate pattern. The semiconductor material layer and gate pattern are covered by a covering layer. A first doping impurity is implanted in the semiconductor material layer through the covering layer so as to place the thickness of maximum concentration of the first doping impurity in the first layer. The covering layer is partly eliminated so as to form lateral spacers leaving source/drain electrodes free.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 27, 2014
    Applicants: STMICROELECTRONICS, INC., COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Nicolas Posseme, Laurent Grenouillet, Yannick Le Tiec, Nicolas Loubet, Maud Vinet
  • Publication number: 20140087523
    Abstract: A method for fabricating a nanowire field effect transistor device includes depositing a first sacrificial layer on a substrate, depositing a first layer of a semiconductor material on the first sacrificial layer, depositing a second sacrificial layer on the first layer of semiconductor material, depositing a second layer of the semiconductor material on the second sacrificial layer, pattering and removing portions of the first sacrificial layer, the first semiconductor layer, the second sacrificial layer, and the second semiconductor layer, patterning a dummy gate stack, removing the dummy gate stack, removing portions of the sacrificial layer to define a first nanowire including a portion of the first semiconductor layer and a second nanowire including a portion of the second semiconductor layer, and forming gate stacks about the first nanowire and the second nanowire.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: International Business Machines Corporation
    Inventors: Veeraraghavan S. Basker, Tenko Yamashita, Chun-chen Yeh
  • Publication number: 20140084370
    Abstract: Three-dimensional germanium-based semiconductor devices formed on globally or locally isolated substrates are described. For example, a semiconductor device includes a semiconductor substrate. An insulating structure is disposed above the semiconductor substrate. A three-dimensional germanium-containing body is disposed on a semiconductor release layer disposed on the insulating structure. The three-dimensional germanium-containing body includes a channel region and source/drain regions on either side of the channel region. The semiconductor release layer is under the source/drain regions but not under the channel region. The semiconductor release layer is composed of a semiconductor material different from the three-dimensional germanium-containing body. A gate electrode stack surrounds the channel region with a portion disposed on the insulating structure and laterally adjacent to the semiconductor release layer.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Inventors: Annalisa Cappellani, Pragyansri Pathi, Bruce E. Beattie, Abhijit Jayant Pethe
  • Patent number: 8679902
    Abstract: A method for fabricating a nanowire field effect transistor device includes depositing a first sacrificial layer on a substrate, depositing a first layer of a semiconductor material on the first sacrificial layer, depositing a second sacrificial layer on the first layer of semiconductor material, depositing a second layer of the semiconductor material on the second sacrificial layer, pattering and removing portions of the first sacrificial layer, the first semiconductor layer, the second sacrificial layer, and the second semiconductor layer, patterning a dummy gate stack, removing the dummy gate stack, removing portions of the sacrificial layer to define a first nanowire including a portion of the first semiconductor layer and a second nanowire including a portion of the second semiconductor layer, and forming gate stacks about the first nanowire and the second nanowire.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 25, 2014
    Assignee: International Business Machines Corporation
    Inventors: Veeraraghavan S. Basker, Tenko Yamashita, Chun-chen Yeh
  • Patent number: 8680619
    Abstract: The present disclosure provides a semiconductor device which includes a semiconductor substrate, a first gate structure disposed over the substrate, the first gate structure including a first gate electrode of a first conductivity type, a second gate structure disposed over the substrate and proximate the first gate structure, the second gate structure including a second gate electrode of a second conductivity type different from the first conductivity type, a first doped region of the first conductivity type disposed in the substrate, the first doped region including a first lightly doped region aligned with a side of the first gate structure, and a second doped region of the second conductivity type disposed in the substrate, the second doped region including a second lightly doped region aligned with a side of the second gate structure.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 25, 2014
    Assignee: Taiwan Semiconductor Manufacturing Compnay, Ltd.
    Inventors: Ming Zhu, Lee-Wee Teo, Harry Hak-Lay Chuang
  • Patent number: 8680526
    Abstract: An electronic device includes: a substrate; a lower electrode which is provided on the substrate and has an edge portion cross-section having a taper angle of 60° or less; a SiO2 film which is provided on the lower electrode, the SiO2 film including hydrogen atoms in a ratio of 3 atomic % or less, and having a refractive index n of 1.475 or less at a wavelength of 650 nm; and an upper electrode which is provided on the SiO2 film and has an overlapping portion with the lower electrode.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: March 25, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Masaya Nakayama, Shinji Imai
  • Patent number: 8679905
    Abstract: A method of forming ohmic source/drain contacts in a metal oxide semiconductor thin film transistor includes providing a gate, a gate dielectric, a high carrier concentration metal oxide semiconductor active layer with a band gap and spaced apart source/drain metal contacts in a thin film transistor configuration. The spaced apart source/drain metal contacts define a channel region in the active layer. An oxidizing ambient is provided adjacent the channel region and the gate and the channel region are heated in the oxidizing ambient to reduce the carrier concentration in the channel area. Alternatively or in addition each of the source/drain contacts includes a very thin layer of low work function metal positioned on the metal oxide semiconductor active layer and a barrier layer of high work function metal is positioned on the low work function metal.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 25, 2014
    Assignee: CBRITE Inc.
    Inventors: Chan-Long Shieh, Gang Yu, Fatt Foong
  • Publication number: 20140077297
    Abstract: Provided is a thin film transistor. The thin film transistor according to an embodiment of the present invention may include a source electrode and a drain electrode buried in a first flexible substrate, a semiconductor layer disposed on the first flexible substrate to be positioned between the source electrode and the drain electrode, a gate insulating layer completely cover the semiconductor layer, and a gate electrode facing the semiconductor layer on the gate insulating layer.
    Type: Application
    Filed: February 20, 2013
    Publication date: March 20, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Electronics and Telecommunications Research Institute
  • Publication number: 20140077216
    Abstract: Provided are a poly-silicon thin film transistor (TFT), a poly-silicon array substrate and a preparing method thereof, and a display device for solving the problems of excessive mask plates, complicated process and high costs in a conventional technology. The method of preparing the poly-silicon TFT comprising a doped region comprises steps: forming a poly-silicon layer on a substrate, forming an active layer by a patterning process; forming a first insulating layer; forming, by a patterning process, via holes exposing the active layer, the source electrode and the drain electrode being connected through the via holes to the active layer; doping the active layer through the via holes by a doping process to form a doped region; forming a source-drain metal layer, and forming the source electrode and the drain electrode by a patterning process.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 20, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Fangzhen Zhang
  • Publication number: 20140078433
    Abstract: Embodiments of the present invention disclose an array substrate and a manufacturing method thereof and a display device. The array substrate comprises: gate scanning lines and data signal lines; pixel regions, defined by gate scanning lines and data signal lines; thin film transistors, each comprised in each of the pixel regions; pixel electrodes, each covering each of the pixel regions and comprising first and second pixel electrodes, wherein the pixel regions are divided into first and second pixel regions, the first and second pixel regions both are provided at intervals, and each of the first pixel regions is covered with a corresponding first pixel electrode, and the first and second pixel electrodes are respectively located in first and second layers, and each of the second pixel regions is covered with a corresponding second pixel electrode, and an insulating layer is provided between the first and second layers.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 20, 2014
    Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Cheng Li
  • Publication number: 20140080267
    Abstract: A method of making a thin film transistor device includes: forming a semiconductor layer, a dielectric layer, and a gate-forming layer on the dielectric layer to define a layered structure, forming a gray scale photoresist pattern on the gate-forming layer, stripping the gray scale photoresist pattern isotropically to cause removal of source and drain defining regions, etching the gate-forming layer anisotropically so as to remove source and drain covering region, doping a first type dopant into source and drain regions, and removing a gate defining region from the gate-forming layer.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventor: Incha HSIEH
  • Patent number: 8674361
    Abstract: A pixel structure includes a substrate, a gate line and a gate electrode disposed on the substrate, an insulating layer covering the substrate, a semiconductor layer disposed on the insulating layer, a data line, a source electrode, and a drain electrode which are disposed on the insulating layer and the semiconductor layer, a planarization layer disposed on the data line, the source electrode, and the drain electrode, and a pixel electrode disposed on the planarization layer. The planarization layer has a through hole exposing the drain electrode. The pixel electrode is electrically connected to the drain electrode via the through hole and includes an opaque main electrode and a plurality of transparent branch electrodes disposed on the planarization layer. One end of each transparent branch electrode is electrically connected to the opaque main electrode.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: March 18, 2014
    Assignee: AU Optronics Corp.
    Inventors: En-Hung Liu, Ching-Sheng Cheng, Chih-Hung Shih
  • Patent number: 8673697
    Abstract: A method of fabricating a thin film transistor, comprising steps of preparing a substrate; forming a polycrystalline silicon layer on the substrate; injecting impurities into the polycrystalline silicon layer for channel doping; patterning the polycrystalline silicon layer and forming a semiconductor layer; annealing the semiconductor layer in an H2O atmosphere, and forming a thermal oxide layer on the semiconductor layer; forming a silicon nitride layer on the thermal oxide layer; forming a gate electrode at a location corresponding to a predetermined region of the semiconductor layer; forming an interlayer insulating layer on the entire surface of the substrate; and forming source and drain electrodes electrically connected with the semiconductor layer.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: March 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Moon-Jin Kim, Kyoung-Bo Kim, Ki-Yong Lee, Han-Hee Yoon
  • Patent number: 8673708
    Abstract: A method includes providing a silicon-on-insulator wafer (e.g., an ETSOI wafer); forming a sacrificial gate structure that overlies a sacrificial insulator layer; forming raised source/drains adjacent to the sacrificial gate structure; depositing a layer that covers the raised source/drains and that surrounds the sacrificial gate structure; and removing the sacrificial gate structure leaving an opening that extends to the sacrificial insulator layer. The method further includes widening the opening so as to expose some of the raised source/drains, removing the sacrificial insulator layer and forming a spacer layer on sidewalls of the opening, the spacer layer covering only an upper portion of the exposed raised source/drains, and depositing a layer of gate dielectric material within the opening. A gate conductor is deposited within the opening.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Balasubramanian S. Haran, Ali Khakifirooz
  • Patent number: 8674362
    Abstract: An exemplary embodiment may include a substrate, an insulating layer on the substrate, and a pixel electrode including a transparent conductive layer on the insulating layer. A portion of a surface of the insulating layer contacting the transparent conductive layer has a plurality of recessed holes formed by etching with an etchant into an interface between the transparent conductive layer of the pixel electrode and the insulating layer.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Ho Kim, Jong-Hyun Choi
  • Patent number: 8673698
    Abstract: A method of modifying a wafer having a semiconductor disposed on an insulator is provided and includes forming first and second nanowire channels connected at each end to semiconductor pads at first and second wafer regions, respectively, with second nanowire channel sidewalls being misaligned relative to a crystallographic plane of the semiconductor more than first nanowire channel sidewalls and displacing the semiconductor toward an alignment condition between the sidewalls and the crystallographic plane such that thickness differences between the first and second nanowire channels reflect the greater misalignment of the second nanowire channel sidewalls.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Sarunya Bangsaruntip, Guy M. Cohen, Jeffrey W. Sleight
  • Publication number: 20140070316
    Abstract: A method of forming a semiconductor structure may include forming at least one fin and forming, over a first portion of the at least one fin structure, a gate. Gate spacers may be formed on the sidewalls of the gate, whereby the forming of the spacers creates recessed regions adjacent the sidewalls of the at least one fin. A first epitaxial region is formed that covers both one of the recessed regions and a second portion of the at least one fin, such that the second portion extends outwardly from one of the gate spacers. A first epitaxial layer is formed within the one of the recessed regions by etching the first epitaxial region and the second portion of the at least one fin. A second epitaxial region is formed at a location adjacent one of the spacers and over the first epitaxial layer within one of the recessed regions.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin K. Chan, Jinghong Li, Dae-Gyu Park, Xinhui Wang, Yun-Yu Wang, Qingyun Yang
  • Publication number: 20140070193
    Abstract: A method of manufacturing a transistor includes: forming a gate electrode; forming a laminated film of an organic insulating film and an organic semiconductor film with a gate insulating film therebetween, the laminated film being opposed to the gate electrode; and patterning the organic semiconductor film.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 13, 2014
    Applicant: Sony Corporation
    Inventors: Akihiro Nomoto, Mao Katsuhara, Kenichi Kurihara
  • Publication number: 20140070220
    Abstract: Embodiments of the invention provide an array substrate, a method for manufacturing the same and a display device. The array substrate comprises a thin film transistor and a pixel electrode electrically connected to a drain electrode of the thin film transistor. The pixel electrode is formed of graphene, or a source electrode and the drain electrode of the thin film transistor are formed of graphene, or the pixel electrode, the source and drain electrodes of the thin film transistor are all formed of graphene.
    Type: Application
    Filed: December 7, 2012
    Publication date: March 13, 2014
    Inventors: Feng Zhang, Tianming Dia, Qi Yao
  • Publication number: 20140073092
    Abstract: After formation of a gate stack, regions in which a source and a drain are to be formed are recessed through the top semiconductor layer and into an upper portion of a buried single crystalline rare earth oxide layer of a semiconductor-on-insulator (SOI) substrate so that a source trench and drain trench are formed. An embedded single crystalline semiconductor portion epitaxially aligned to the buried single crystalline rare earth oxide layer is formed in each of the source trench and the drain trench to form a recessed source and a recessed drain, respectively. Protrusion of the recessed source and recessed drain above the bottom surface of a gate dielectric can be minimized to reduce parasitic capacitive coupling with a gate electrode, while providing low source resistance and drain resistance through the increased thickness of the recessed source and recessed drain relative to the thickness of the top semiconductor layer.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 13, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Geng Wang, Kangguo Cheng, Joseph Ervin, Chengwen Pei, Ravi M. Todi
  • Patent number: 8669146
    Abstract: A method of forming a semiconductor structure, including forming a channel in a first portion of a semiconductor layer and forming a doped extension region in a second portion of the semiconductor layer abutting the channel on a first side and abutting an insulator material on a bottom side. The first portion of the semiconductor layer is thicker than the second portion of the semiconductor layer.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 11, 2014
    Assignee: International Business Machines Corporation
    Inventors: Michel J. Abou-Khalil, Robert J. Gauthier, Jr., Tom C. Lee, Junjun Li, Souvick Mitra, Christopher S. Putnam
  • Patent number: 8669130
    Abstract: A fringe field switching (FFS) liquid crystal display (LCD) device which uses an organic insulating layer and consumes less power, in which film quality of an upper layer of a low temperature protective film is changed to improve undercut within a pad portion contact hole, and a method for fabricating the same is provided.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: March 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: KyoungJin Nam, SeungRyull Park, KyungMo Son, JiHye Lee
  • Publication number: 20140061794
    Abstract: A finFET with self-aligned punchthrough stopper and methods of manufacture are disclosed. The method includes forming spacers on sidewalls of a gate structure and fin structures of a finFET device. The method further includes forming a punchthrough stopper on exposed sidewalls of the fin structures, below the spacers. The method further includes diffusing dopants from the punchthrough stopper into the fin structures. The method further includes forming source and drain regions adjacent to the gate structure and fin structures.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Balasubramanian S. Haran, Shom Ponoth, Theodorus E. Standaert, Tenko Yamashita
  • Patent number: 8664071
    Abstract: A method of fabricating a castellated-gate MOSFET tetrode device capable of fully depleted operation is disclosed. The device is formed on a semiconductor substrate region having an upper portion with a top surface and a lower portion with a bottom surface. A source region and a drain region are formed by ion implantation into the semiconductor substrate region, with adjoined primary and secondary channel-forming regions also disposed therein between the source and drain regions, thereby forming an integrated cascode structure. A plurality of thin semiconductor channel elements are formed by etching a plurality of spaced gate slots to a first predetermined depth into the substrate. The formation of first, second, and additional gate structures are described in two possible embodiments which facilitate the formation of self-aligned source and drain regions.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: March 4, 2014
    Inventor: John James Seliskar
  • Patent number: 8664049
    Abstract: The PN junction of a substrate diode in a sophisticated SOI device may be formed on the basis of an embedded in situ doped semiconductor material, thereby providing superior diode characteristics. For example, a silicon/germanium semiconductor material may be formed in a cavity in the substrate material, wherein the size and shape of the cavity may be selected so as to avoid undue interaction with metal silicide material.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: March 4, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Stephan Kronholz, Roman Boschke, Vassilios Papageorgiou, Maciej Wiatr
  • Patent number: 8664050
    Abstract: A structure and method to improve ETSOI MOSFET devices. A wafer is provided including regions with at least a first semiconductor layer overlying an oxide layer overlying a second semiconductor layer. The regions are separated by a STI which extends at least partially into the second semiconductor layer and is partially filled with a dielectric. A gate structure is formed over the first semiconductor layer and during the wet cleans involved, the STI divot erodes until it is at a level below the oxide layer. Another dielectric layer is deposited over the device and a hole is etched to reach source and drain regions. The hole is not fully landed, extending at least partially into the STI, and an insulating material is deposited in said hole.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Balasubramanian S. Haran, Ali Khakifirooz, Pranita Kulkarni
  • Patent number: 8664653
    Abstract: Disclosed is a semiconductor device including an insulating layer, a source electrode and a drain electrode embedded in the insulating layer, an oxide semiconductor layer in contact with the insulating layer, the source electrode, and the drain electrode, a gate insulating layer covering the oxide semiconductor layer, and a gate electrode over the gate insulating layer. The upper surface of the surface of the insulating layer, which is in contact with the oxide semiconductor layer, has a root-mean-square (RMS) roughness of 1 nm or less. There is a difference in height between an upper surface of the insulating layer and each of an upper surface of the source electrode and an upper surface of the drain electrode. The difference in height is preferably 5 nm or more. This structure contributes to the suppression of defects of the semiconductor device and enables their miniaturization.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: March 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hiromichi Godo
  • Patent number: 8664097
    Abstract: An object is to provide a technique by which a semiconductor device including a high-performance and high-reliable transistor is manufactured. A protective conductive film which protects an oxide semiconductor layer when a wiring layer is formed from a conductive layer is formed between the oxide semiconductor layer and the conductive layer, and an etching process having two steps is performed. In a first etching step, an etching is performed under conditions that the protective conductive film is less etched than the conductive layer and the etching selectivity of the conductive layer to the protective conductive film is high. In a second etching step, etching is performed under conditions that the protective conductive film is more easily etched than the oxide semiconductor layer and the etching selectivity of the protective conductive film to the oxide semiconductor layer is high.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: March 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masami Jintyou, Yamato Aihara, Katsuaki Tochibayashi, Toru Arakawa
  • Publication number: 20140054703
    Abstract: Embodiments of the invention provide an array substrate comprising a plurality of pixel units, each of the pixel units including a first display electrode, a second display electrode and an insulating portion, wherein, the insulating portion comprises a plurality of first via holes; the first display electrode is disposed at a surface of the insulating portion, and the second display electrode is disposed at bottom surfaces of the first via holes. Embodiments of the invention further provide a method for manufacturing the array substrate.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 27, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin FENG, Hongtao LIN, Zhangtao WANG, Xibin SHAO
  • Publication number: 20140054701
    Abstract: Embodiments of the present invention provide a method for manufacturing a transistor, a transistor, an array substrate and a display device. The method comprises: forming a first source/drain metal layer on a substrate; forming an insulating layer above the first source/drain metal layer; forming a gate metal layer on the insulating layer; forming a gate insulating layer on the gate metal layer; forming a semiconductor layer above the gate insulating layer; forming an etching blocking layer on the semiconductor layer; forming a second source/drain metal layer above the etching blocking layer; forming an insulating layer above the second source/drain metal layer.
    Type: Application
    Filed: November 28, 2012
    Publication date: February 27, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Chunsheng Jiang
  • Patent number: 8658481
    Abstract: A reduction in contaminating impurities in a TFT, and a TFT which is reliable, is obtained in a semiconductor device which uses the TFT. By removing contaminating impurities residing in a film interface of the TFT using a solution containing fluorine, a reliable TFT can be obtained.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 25, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masaya Kadono, Shunpei Yamazaki, Yukio Yamauchi, Hidehito Kitakado
  • Patent number: 8658480
    Abstract: A method for manufacturing an active array substrate is provided herein. The active array substrate can be manufactured by using only two photolithography process steps. The photolithography process step using a first photomask may be provided for forming a drain electrode, a source electrode, a data line and/or a data line connecting pad and a patterned transparent conductive layer, etc. The photolithography process step using a second photomask may be utilized for forming a gate electrode, a gate line, a gate insulating layer, a channel layer and/or a gate line connecting pad, and so forth.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 25, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Wen-Chung Tang, Fang-An Shu, Yao-Chou Tsai, Ted-Hong Shinn
  • Publication number: 20140048806
    Abstract: A method of manufacturing an electronic device comprises: providing a layer of semiconductor material comprising a first portion, a second portion, and a third portion, the third portion connecting the first portion to the second portion and providing a semiconductive channel for electrical current flow between the first and second portions; providing a gate terminal arranged with respect to said third portion such that a voltage may be applied to the gate terminal to control an electrical conductivity of said channel; and processing at least one of the first and second portions so as to have an electrical conductivity greater than an electrical conductivity of the channel when no voltage is applied to the gate terminal. In certain embodiments, the processing comprises exposing at least one of the first and second portions to electromagnetic radiation. The first and second portions may be laser annealed to increase their conductivities.
    Type: Application
    Filed: March 30, 2012
    Publication date: February 20, 2014
    Inventors: Richard Price, Catherine Ramsdale
  • Publication number: 20140051215
    Abstract: A method for making a thin film transistor, the method comprising: applying a gate electrode on an insulating substrate; covering the gate electrode with an insulating layer; forming a carbon nanotube layer on a growing substrate, wherein the carbon nanotube layer comprises a plurality of carbon nanotubes; transfer printing the carbon nanotube layer from the growing substrate onto the insulating layer, wherein the insulating layer insulates the carbon nanotube layer from the gate electrode; and placing a source electrode and a drain electrode spaced from each other and electrically connected to two opposite ends of at least one of the plurality of carbon nanotubes.
    Type: Application
    Filed: October 22, 2013
    Publication date: February 20, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: QUN-QING LI, XUE-SHEN WANG, KAI-LI JIANG, SHOU-SHAN FAN
  • Publication number: 20140051214
    Abstract: In one embodiment, a floating body field-effect transistor includes a pair of source/drain regions having a floating body channel region received therebetween. The source/drain regions and the floating body channel region are received over an insulator. A gate electrode is proximate the floating body channel region. A gate dielectric is received between the gate electrode and the floating body channel region. The floating body channel region has a semiconductor SixGe(1-x)-comprising region. The floating body channel region has a semiconductor silicon-comprising region received between the semiconductor SixGe(1-x)-comprising region and the gate dielectric. The semiconductor SixGe(1-x)-comprising region has greater quantity of Ge than any quantity of Ge within the semiconductor silicon-comprising region. Other embodiments are contemplated, including methods of forming floating body field-effect transistors.
    Type: Application
    Filed: February 7, 2013
    Publication date: February 20, 2014
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Jun Liu, Michael P. Violette, Chandra Mouli, Howard Kirsch, Di Li
  • Publication number: 20140051213
    Abstract: A method of fabricating a nanowire FET device includes the following steps. A SOI wafer is provided having a SOI layer over a BOX. Nanowires and pads are etched in the SOI layer. The nanowires are suspended over the BOX. An interfacial oxide is formed surrounding each of the nanowires. A conformal gate dielectric is deposited on the interfacial oxide. A conformal first gate material is deposited on the conformal gate dielectric. A work function setting material is deposited on the conformal first gate material. A second gate material is deposited on the work function setting material to form at least one gate stack over the nanowires. A volume of the conformal first gate material and/or a volume of the work function setting material in the gate stack are/is proportional to a pitch of the nanowires.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Applicant: International Business Machines Corporation
    Inventors: Josephine B. Chang, Isaac Lauer, Chung-Hsun Lin, Jeffrey W. Sleight
  • Publication number: 20140051216
    Abstract: A method includes providing a silicon-on-insulator wafer (e.g., an ETSOI wafer); forming a sacrificial gate structure that overlies a sacrificial insulator layer; forming raised source/drains adjacent to the sacrificial gate structure; depositing an oxide layer that covers the raised source/drains and that surrounds the sacrificial gate structure; and removing the sacrificial gate structure leaving an opening that extends to the sacrificial insulator layer. The method further includes widening the opening so as to expose some of the raised source/drains, removing the sacrificial insulator layer and forming a spacer layer on sidewalls of the opening, the spacer layer covering only an upper portion of the exposed raised source/drains, and depositing a layer of gate dielectric material within the opening. A gate conductor is deposited within the opening.
    Type: Application
    Filed: October 30, 2013
    Publication date: February 20, 2014
    Applicant: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Balasubramanian S. Haran, Ali Khakifirooz
  • Patent number: 8652887
    Abstract: The present invention relates to a method for providing a Silicon-On-Insulator (SOI) stack that includes a substrate layer, a first oxide layer on the substrate layer and a silicon layer on the first oxide layer (BOX layer). The method includes providing at least one first region of the SOI stack wherein the silicon layer is thinned by thermally oxidizing a part of the silicon layer and providing at least one second region of the SOI stack wherein the first oxide layer (BOX layer) is thinned by annealing.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 18, 2014
    Assignee: Soitec
    Inventors: Bich-Yen Nguyen, Carlos Mazure, Richard Ferrant
  • Patent number: 8652927
    Abstract: A method for forming a capacitor stack is described. In some embodiments of the present invention, a first electrode structure is comprised of multiple materials. A first material is formed above the substrate. A portion of the first material is etched. A second material is formed above the first material. A portion of the second material is etched. Optionally, the first electrode structure receives an anneal treatment. A dielectric material is formed above the first electrode structure. Optionally, the dielectric material receives an anneal treatment. A second electrode material is formed above the dielectric material. Typically, the capacitor stack receives an anneal treatment.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: February 18, 2014
    Assignee: Intermolecular, Inc.
    Inventors: Sandra Malhotra, Hanhong Chen, Wim Y. Deweerd, Edward L. Haywood, Hiroyuki Ode, Gerald Richardson
  • Patent number: 8652875
    Abstract: A method of manufacturing a thin film transistor is provided. The method includes forming a lower organic semiconductor layer, forming an upper organic semiconductor layer on the lower organic semiconductor layer, the upper organic semiconductor layer having solubility and conductivity higher than those of the lower organic semiconductor layer, forming a source electrode and a drain electrode spaced apart from each other and respectively overlapping the upper organic semiconductor layer, and dissolving the upper organic semiconductor layer selectively by using the source electrode and the drain electrode as a mask.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: February 18, 2014
    Assignee: Sony Corporation
    Inventor: Iwao Yagi
  • Patent number: 8652916
    Abstract: A method of forming a semiconductor structure, including forming a gate structure on a substrate; performing a first angled implantation on a first side of the gate structure to form a first doped region in the substrate, the first doped region partially extends within a channel of the gate structure and the gate structure blocks the first angled implantation from affecting the substrate on a second side of the gate structure; forming sidewall spacers on sidewalls of the gate; and forming a second doped region in the substrate on the second side of the gate, spaced apart from the channel.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Roger A. Booth, Jr., Paul Chang, Kangguo Cheng, Chengwen Pei, William R. Tonti
  • Patent number: 8652886
    Abstract: A method of manufacturing a thin film transistor array substrate includes forming a gate pattern on a substrate, forming a gate insulating film on the substrate, forming a source/drain pattern and a semiconductor pattern on the substrate, forming first, second, and third passivation films successively on the substrate. Over the above multi-layered passivation film forming a first photoresist pattern including a first portion formed on part of the drain electrode and on the pixel region, and a second portion. The second portion is thicker than the first portion. Then, patterning the third passivation film using the first photoresist pattern, forming a second photoresist pattern by removing the first portion of the first photoresist pattern, forming a transparent electrode film on the substrate, removing the second photoresist pattern and the transparent electrode film disposed on the second photoresist pattern, and forming a transparent electrode pattern on the second passivation layer.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: February 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeong-Suk Yoo, Ho-Jun Lee, Sung-Ryul Kim, O-Sung Seo, Hong-Kee Chin
  • Publication number: 20140045303
    Abstract: A method of fabricating a semiconducting device is disclosed. A carbon nanotube is deposited on a substrate of the semiconducting device. A first contact on the substrate over the carbon nanotube. A second contact on the substrate over the carbon nanotube, wherein the second contact is separated from the first contact by a gap. A portion of the substrate in the gap between the first contact and the second contact is removed.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 13, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aaron D. Franklin, Shu-jen Han, Joshua T. Smith, Paul M. Solomon
  • Publication number: 20140042429
    Abstract: A thin film transistor substrate includes a base substrate, an active pattern disposed on the base substrate, a gate insulation pattern disposed on the active pattern, a gate electrode disposed on the gate insulation pattern and overlapping the channel, and a light-blocking pattern disposed between the base substrate and the active pattern and having a size greater than the active pattern. The active pattern includes a source electrode, a drain electrode, and a channel disposed between the source electrode and the drain electrode.
    Type: Application
    Filed: January 31, 2013
    Publication date: February 13, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Ho PARK, Su-Hyoung KANG, Dong-Hwan SHIM, Yoon-Ho KHANG, Se-Hwan YU, Min-Jung LEE, Yong-Su LEE
  • Patent number: 8647932
    Abstract: Disclosed are a thin film transistor and a method of manufacturing the thin film transistor. An electrode layer of the thin film transistor includes a seed layer formed of a transparent conductive material doped with indium gallium zinc oxide (IGZO) and a main layer formed of a transparent conductive material. The thin film transistor includes a substrate, a gate electrode on the substrate, a gate insulation film on the substrate to cover the gate electrode, a semiconductor layer disposed on the gate insulation film in a region corresponding to the gate electrode, an electrode layer having a double layer structure and disposed on the gate insulation film in a manner such that a topside portion of the semiconductor layer is exposed through the electrode layer, and a passivation layer on the gate insulation film to cover the semiconductor layer and the electrode layer.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: February 11, 2014
    Assignee: SNU R&DB Foundation
    Inventors: Sung Hwan Choi, Min Koo Han
  • Patent number: 8647979
    Abstract: Conductive lines are deposited on a substrate to produce traces for conducting electricity between electronic components. A patterned metal layer is formed on the substrate, and then a layer of material having a low thermal conductivity is coated over the patterned metal layer and the substrate. Vias are formed through the layer of material having the low thermal conductivity thereby exposing portions of the patterned metal layer. A film of conductive ink is then coated over the layer of material having the low thermal conductivity and into the vias to thereby coat the portions of the patterned metal layer, and then sintered. The film of conductive ink coated over the portion of the patterned metal layer does not absorb as much energy from the sintering as the film of conductive ink coated over the layer of material having the low thermal conductivity. The layer of material having the low thermal conductivity may be a polymer, such as polyimide.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: February 11, 2014
    Assignees: Applied Nanotech Holdings, Inc., Ishihara Chemical Co., Ltd.
    Inventors: Zvi Yaniv, Mohshi Yang, Peter B. Laxton
  • Patent number: 8647902
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming gate and data lines crossing each other on a substrate; forming a thin film transistor connected to the gate and data lines; forming a passivation layer on the substrate having the gate lines, data lines and the thin film transistor; forming a first conductive material layer on the passivation layer and connected to a drain electrode of the thin film transistor; oxidizing a surface of the first conductive material layer; forming a second conductive material layer on the oxidized first conductive material layer; forming a photoresist pattern on the second conductive material layer; etching the first and second conductive material layers using the photoresist pattern to form pixel and common electrodes which are alternately arranged in the pixel region and produces an in-plane electric field; and removing the photoresist pattern.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: February 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Ju-Ran Lee, Jeong-Yun Lee, Hang-Sup Cho, Doo-Hee Jang