Having Insulated Gate Patents (Class 438/151)
  • Patent number: 9263481
    Abstract: The array substrate includes a substrate, a thin film transistor (TFT) and a pixel electrode. The TFT is disposed on the substrate and includes a gate electrode, a gate insulating layer, a patterned semiconductor layer, a patterned etching stop layer, a patterned hard mask layer, a source electrode and a drain electrode. The patterned gate insulating layer is disposed on the gate electrode. The patterned semiconductor layer is disposed on the patterned gate insulating layer. The patterned etching stop layer is disposed on the patterned semiconductor layer. The source and the drain electrodes are disposed on the patterned etching stop layer and the patterned semiconductor layer. The patterned hard mask layer is disposed between the source electrode and the patterned etching stop layer and disposed between the drain electrode and the patterned etching stop layer. The pixel electrode is disposed on the substrate and electrically connected to the TFT.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: February 16, 2016
    Assignee: AU Optronics Corp.
    Inventors: Yi-Chen Chung, Chia-Yu Chen, Hui-Ling Ku, Yu-Hung Chen, Chi-Wei Chou, Fan-Wei Chang, Hsueh-Hsing Lu, Hung-Che Ting
  • Patent number: 9257503
    Abstract: A method of forming a superjunction device includes forming at least one trench in a first surface of a first semiconductor layer of a first doping type, and a semiconductor mesa region adjoining the at least one trench. A second semiconductor layer is formed at least on sidewalls and a bottom of the at least one trench. The second semiconductor layer is etched by filling the at least one trench with an etchant, and applying a voltage between the first semiconductor layer and the etchant such that a space charge region expands in the second semiconductor layer and in the first semiconductor layer. The voltage is adjusted such that there is a first region in the semiconductor mesa region that is free of the space charge region when the voltage is applied.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: February 9, 2016
    Assignee: Infineon Technologies Austria AG
    Inventor: Hans Weber
  • Patent number: 9257290
    Abstract: The present disclosure relates to a low temperature poly-silicon thin film transistor which possesses electrical characteristics and reliability, and a method of manufacturing the thin film transistor. The low temperature poly-silicon thin film transistor at least includes a gate insulating layer which is a composite insulating layer comprising at least three dielectric layers, wherein the compactness of each dielectric layer successively increases in order of the formation sequence thereof in the manufacturing process. Because the relation between the compactness of each layer of the composite insulating layer and that of the others thereof is taken into account according to the present disclosure, each layer in the composite insulating layer of the low temperature poly-silicon thin film transistor manufactured by the method according to the present disclosure can have enhanced surface contact characteristic and thin film continuity.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: February 9, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiangyang Xu
  • Patent number: 9252215
    Abstract: A method of fabricating a semiconductor device includes forming a plurality of semiconductor fins on an insulator layer of a semiconductor substrate, and forming a plurality of gate stacks on the insulator layer. Each gate stack wraps around a respective portion of the semiconductor fins. The method further includes forming a dielectric layer on the insulator layer. The dielectric layer fills voids between the semiconductor fins and gate stacks, and covers the semiconductor fins. The method further includes etching at least one portion of the semiconductor fins until reaching the insulator layer such that at least one cavity is formed. The cavity exposes seed regions of the semiconductor fins located between adjacent gate stacks. The method further includes epitaxially growing a semiconductor material from the seed regions to form source/drain regions corresponding to a respective gate stack.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: February 2, 2016
    Assignee: International Business Machines Corporation
    Inventors: Brian J. Greene, Arvind Kumar, Dan M. Mocuta
  • Patent number: 9240488
    Abstract: A transistor including an oxide semiconductor, which has good on-state characteristics, and a high-performance semiconductor device including a transistor capable of high-speed response and high-speed operation. In the transistor including an oxide semiconductor, oxygen-defect-inducing factors are introduced (added) into an oxide semiconductor layer, whereby the resistance of a source and drain regions are selectively reduced. Oxygen-defect-inducing factors are introduced into the oxide semiconductor layer, whereby oxygen defects serving as donors can be effectively formed in the oxide semiconductor layer. The introduced oxygen-defect-inducing factors are one or more selected from titanium, tungsten, and molybdenum, and are introduced by an ion implantation method.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 19, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichi Koezuka
  • Patent number: 9240352
    Abstract: Bulk finFET well contacts with fin pattern uniformity and methods of manufacture. The method includes providing a substrate with a first region and a second region, the first region comprising a well with a first conductivity. The method further includes forming contiguous fins over the first region and the second region. The method further includes forming an epitaxial layer on at least one portion of the fins in the first region and at least one portion of the fins in the second region. The method further includes doping the epitaxial layer in the first region with a first type dopant to provide the first conductivity. The method further includes doping the epitaxial layer in the second region with a second type dopant to provide a second conductivity.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: January 19, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Brent A. Anderson, Andres Bryant, Edward J. Nowak, Scott R. Stiffler
  • Patent number: 9240466
    Abstract: The disclosure concerns a method of stressing a semiconductor layer comprising: forming, over a silicon on insulator structure having a semiconductor layer in contact with an insulating layer, one or more stressor blocks aligned with first regions of said semiconductor layer in which transistor channels are to be formed, wherein said stressor blocks are stressed such that they locally stress said semiconductor layer; and deforming second regions of said insulating layer adjacent to said first regions by temporally decreasing, by annealing, the viscosity of said insulator layer.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: January 19, 2016
    Assignees: STMicroelectronics SA, STMicroelectronics, Inc.
    Inventors: Pierre Morin, Denis Rideau, Olivier Nier
  • Patent number: 9236494
    Abstract: A field effect transistor (FET) is provided. The active layer of this FET is composed of at least two different amorphous metal oxide semiconductor layer stacked together. Therefore, the two opposite surfaces of the active layer can have different band gap values.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: January 12, 2016
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Wen Zan, Chun-Hung Liao
  • Patent number: 9236489
    Abstract: A logic circuit includes a thin film transistor having a channel formation region formed using an oxide semiconductor, and a capacitor having terminals one of which is brought into a floating state by turning off the thin film transistor. The oxide semiconductor has a hydrogen concentration of 5×1019 (atoms/cm3) or less and thus substantially serves as an insulator in a state where an electric field is not generated. Therefore, off-state current of a thin film transistor can be reduced, leading to suppressing the leakage of electric charge stored in a capacitor, through the thin film transistor. Accordingly, a malfunction of the logic circuit can be prevented. Further, the excessive amount of current which flows in the logic circuit can be reduced through the reduction of off-state current of the thin film transistor, resulting in low power consumption of the logic circuit.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 12, 2016
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masashi Tsubuku, Kosei Noda
  • Patent number: 9224808
    Abstract: Uniaxially strained nanowire structures are described. For example, a semiconductor device includes a plurality of vertically stacked uniaxially strained nanowires disposed above a substrate. Each of the uniaxially strained nanowires includes a discrete channel region disposed in the uniaxially strained nanowire. The discrete channel region has a current flow direction along the direction of the uniaxial strain. Source and drain regions are disposed in the nanowire, on either side of the discrete channel region. A gate electrode stack completely surrounds the discrete channel regions.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 29, 2015
    Assignee: Intel Corporation
    Inventors: Stephen M. Cea, Seiyon Kim, Annalisa Cappellani
  • Patent number: 9214561
    Abstract: An integrated recessed thin body field effect transistor (FET) and methods of manufacture are disclosed. The method includes recessing a portion of a semiconductor material. The method further includes forming at least one gate structure within the recessed portion of the semiconductor material.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 15, 2015
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Michel J. Abou-Khalil, Alan B. Botula, Mark D. Jaffe, Alvin J. Joseph, James A. Slinkman
  • Patent number: 9209136
    Abstract: Embodiments of the present disclosure are directed towards techniques and configurations for hybrid carbon-metal interconnect structures in integrated circuit assemblies. In one embodiment, an apparatus includes a substrate, a metal interconnect layer disposed on the substrate and configured to serve as a growth initiation layer for a graphene layer and the graphene layer, wherein the graphene layer is formed directly on the metal interconnect layer, the metal interconnect layer and the graphene layer being configured to route electrical signals. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: December 8, 2015
    Assignee: Intel Corporation
    Inventor: Hans-Joachim Barth
  • Patent number: 9209025
    Abstract: The present invention provides a method for making low temperature poly-silicon thin film, including the step of growing amorphous silicon layer, the step of firstly growing a layer of silicon oxide over the amorphous silicon layer; then forming a plurality of concave surfaces across the silicon oxide layer, wherein the concave surfaces will reflect light beams vertically projected toward the silicon oxide; and finally, the step of projecting excimer laser beam toward the amorphous silicon layer through the silicon oxide layer to transform the amorphous silicon layer into the low temperature poly-silicon thin film. The present invention further provides a low temperature poly-silicon thin film made from the method described above, and also a low temperature poly-silicon transistor. When the excimer laser annealing process is implemented to make the low temperature poly-silicon thin film, the starting point and direction of the recrystallization can be controlled so as to attain larger grain size.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: December 8, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Longxian Zhang
  • Patent number: 9196710
    Abstract: Integrated circuits with relaxed silicon and germanium fins and methods for fabricating such integrated circuits are provided. The method includes a forming a crystalline silicon and germanium composite layer overlying a crystalline silicon substrate, where a composite layer crystal lattice is relaxed. A fin is formed in the composite layer, and a gate is formed overlying the fin. A portion of the fin is removed on opposite sides of the gate to form a drain cavity and a source cavity, and a source and a drain are formed in the source cavity and drain cavity, respectively.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: November 24, 2015
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Andy Wei, Jin Ping Liu, Shao Ming Koh, Amaury Gendron
  • Patent number: 9184090
    Abstract: A TFT display panel having a high charge mobility and making it possible to obtain uniform electric characteristics with respect to a large-area display is provided as well as a manufacturing method thereof. A TFT display panel includes a gate electrode formed on an insulation substrate, a first gate insulting layer formed of SiNx on the gate electrode, a second gate insulting layer formed of SiOx on the first gate insulting layer, an oxide semiconductor layer formed to overlap the gate electrode and having a channel part, and a passivation layer formed of SiOx on the oxide semiconductor layer and the gate electrode, and the passivation layer includes a contact hole exposing the drain electrode. The contact hole has a shape in which the passivation layer of a portion directly exposed together with a metal occupies an area smaller than the upper passivation layer.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ha Choi, Kyoung-Jae Chung, Woo-Geun Lee
  • Patent number: 9171808
    Abstract: In a semiconductor integrated circuit sandwiched between a pair of a first impact resistance layer and a second impact resistance layer, an impact diffusion layer is provided between the semiconductor integrated circuit and the second impact resistance layer. By provision of the impact resistance layer against the external stress and the impact diffusion layer for diffusing the impact, force applied to the semiconductor integrated circuit per unit area is reduced, so that the semiconductor integrated circuit is protected. The impact diffusion layer preferably has a low modulus of elasticity and high breaking modulus.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: October 27, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shingo Eguchi
  • Patent number: 9165947
    Abstract: A semiconductor device includes a gate, a first electrode, a first insulating layer, an active layer, an etching stop layer, a second insulating layer, a source, a drain and a second electrode. The first insulating layer covers the gate and the first electrode. The active layer and the etching stop layer are disposed on the first insulating layer above the gate and the first electrode respectively. The second insulating layer covers the active layer and the etching stop layer and has a first opening and a second opening exposing the active layer and a third opening exposing the etching stop layer. The source and the drain are disposed on the second insulating layer and contact with the active layer through the first opening and the second opening respectively. The second electrode is located on the second insulating layer and contacts with the etching stop layer through the third opening.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 20, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Jing-Yi Yan, Chih-Chieh Hsu, Hsiao-Chiang Yao, Chu-Yin Hung
  • Patent number: 9165949
    Abstract: The present invention provides an array substrate, its manufacturing method, and a display device. The array substrate comprises a gate metal layer, a gate insulating layer, a source/drain metal layer, first common electrode lines arranged on an identical layer to the gate metal layer, a first via hole arranged in the gate insulating layer and corresponding to the first common electrode line, a source/drain metal filling part arranged within the first via hole, a second via hole in communication with the first via hole, and a transparent connection part. The first common electrode lines are, by means of the transparent connection part and the source/drain metal filling part, in electrical connection with each other through the second via hole. According to the present invention, it is able to reduce the depth of the via holes in the array substrate, and improve the uneven diffusion of an alignment layer.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: October 20, 2015
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jinchao Bai, Yao Liu, Liangliang Li, Xiangqian Ding, Zongjie Guo
  • Patent number: 9153795
    Abstract: A thin film encapsulation manufacturing apparatus includes a first cluster configured to form a first inorganic layer on a first substrate, on which an emission unit is formed, by a sputtering process; a second cluster configured to form a first organic layer on the first inorganic layer on the first substrate conveyed from the first cluster by an organic deposition process; a first connection module configured to connect the first cluster and the second cluster, configured to convey the first substrate on which the first inorganic layer is formed from the first cluster to the second cluster, and configured to cool the first substrate in a non-contact manner; and a third cluster configured to form a second inorganic layer on the first organic layer on the first substrate conveyed from the second cluster by a chemical vapor deposition (CVD) process or a plasma enhanced chemical vapor deposition (PECVD) process.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: October 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung-Soo Huh, Tae-Seung Yoon, Jeong-Ho Yi
  • Patent number: 9142654
    Abstract: A manufacturing method of an oxide semiconductor thin film transistor according to the disclosure includes the following. A source and a drain are formed. A channel layer is formed between the source and the drain, wherein the channel layer is separated from the source and the drain. An insulation layer is formed, wherein the insulation layer covers the source, the drain, and the channel layer. A first conductor is at least formed in a first opening of the insulation layer, wherein the first conductor contacts the source and the channel layer. A second conductor is at least formed in a second opening of the insulation layer, wherein the second conductor contacts the drain and the channel layer.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: September 22, 2015
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventor: Hsi-Ming Chang
  • Patent number: 9142675
    Abstract: A method is provided for fabricating a fin field-effect transistor. The method includes providing a substrate having a first region and a second region; and forming a plurality of fin structures on a surface of the substrate. The method also includes forming a first mask layer having a plurality of first openings exposing the fin structures in the first region near the second region; and removing the fin structures in the first region near the second region. Further, the method includes forming a second mask layer on the fin structures in the second region; and removing the fin structures in the first region. Further, the method also includes forming fins by etching the substrate using the fin structures in the second region as an etching mask; and forming a gate structure and source/drain regions in the fins at both sides of the gate structure.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: September 22, 2015
    Assignees: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATION, SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION
    Inventors: Yunchu Yu, Yihua Shen, Xiaohui Zhuang
  • Patent number: 9130049
    Abstract: A novel amorphous oxide applicable, for example, to an active layer of a TFT is provided. The amorphous oxide comprises microcrystals.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 8, 2015
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, Japan Science and Technology Agency
    Inventors: Masafumi Sano, Katsumi Nakagawa, Hideo Hosono, Toshio Kamiya, Kenji Nomura
  • Patent number: 9117920
    Abstract: Stable electrical characteristics and high reliability are provided to a semiconductor device including an oxide semiconductor. In a process of manufacturing a transistor including an oxide semiconductor film, an amorphous oxide semiconductor film is formed, and oxygen is added to the amorphous oxide semiconductor film, so that an amorphous oxide semiconductor film containing excess oxygen is formed. Then, an aluminum oxide film is formed over the amorphous oxide semiconductor film, and heat treatment is performed thereon to crystallize at least part of the amorphous oxide semiconductor film, so that a crystalline oxide semiconductor film is formed.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: August 25, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Junichi Koezuka, Yuhei Sato, Shunpei Yamazaki
  • Patent number: 9112131
    Abstract: A spin MOSFET includes a first ferromagnetic layer having a fixed magnetization direction, a first tunnel barrier, a second ferromagnetic layer having a variable magnetization direction, and a nonmagnetic semiconductor layer provided in that order on a substrate. The nonmagnetic semiconductor layer has lower and upper faces and a side faces serving as a channel. A third ferromagnetic layer having a fixed magnetization direction is provided on the upper face of the nonmagnetic semiconductor layer, wherein the magnetization direction of each of the first to third ferromagnetic layers is in parallel or antiparallel to a direction from the third ferromagnetic layer to the first ferromagnetic layer. A nonmagnetic layer is provided on the third ferromagnetic layer, and a gate insulating film and gate electrode are provided in that order on the side face of the nonmagnetic semiconductor layer.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 18, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoshiaki Saito, Hideyuki Sugiyama, Tomoaki Inokuchi, Takao Marukame, Mizue Ishikawa
  • Patent number: 9105652
    Abstract: A resist layer (46a) including a thick film section (47a), which is relatively thick, at one side thereof, and a thin film section (47b), which is relatively thin, at the other side thereof is formed using a multiple-tone mask. A gate electrode (15a) is formed at a place where it will be provided on a semiconductor layer (12a) so as to be narrower than the resist layer (46a), by executing isotropic etching to a conductive film (44) formed in advance using the resist layer (46a) as a mask, in order to form overhang portions (48) on the resist layer (46a) at both sides of the gate electrode (15a). Then, the entire thin film section (47b) is removed, the thick film section (47a) is made thinner, and impurities are implanted into the semiconductor layer (12a) using the remaining resist layer (46a) and the gate electrode (15a) as masks.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: August 11, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masaki Saitoh
  • Patent number: 9099563
    Abstract: A thin film semiconductor device has a semiconductor layer including a mixture of an amorphous semiconductor ionic metal oxide and an amorphous insulating covalent metal oxide. A pair of terminals is positioned in communication with the semiconductor layer and define a conductive channel, and a gate terminal is positioned in communication with the conductive channel and further positioned to control conduction of the channel. The invention further includes a method of depositing the mixture including using nitrogen during the deposition process to control the carrier concentration in the resulting semiconductor layer.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 4, 2015
    Assignee: CBRITE INC.
    Inventors: Chan-Long Shieh, Gang Yu
  • Patent number: 9076718
    Abstract: The present invention provides an oxide semiconductor capable of achieving a thin film transistor having stable transistor characteristics, a thin film transistor having a channel layer formed of the oxide semiconductor and a production method thereof, and a display device equipped with the thin film transistor. The oxide semiconductor of the present invention is an oxide semiconductor for a thin film transistor. The oxide semiconductor includes indium, gallium, zinc, and oxygen as constituent atoms, and the oxygen content of the oxide semiconductor is 87% to 95% of the stoichiometric condition set as 100%, in terms of atomic units.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshifumi Ohta, Go Mori, Hirohiko Nishiki, Yoshimasa Chikama, Tetsuya Aita, Masahiko Suzuki, Okifumi Nakagawa, Michiko Takei, Yoshiyuki Harumoto, Takeshi Hara
  • Patent number: 9059047
    Abstract: An object is to provide a semiconductor device using an oxide semiconductor having stable electric characteristics and high reliability. A transistor including the oxide semiconductor film in which a top surface portion of the oxide semiconductor film is provided with a metal oxide film containing a constituent similar to that of the oxide semiconductor film and functioning as a channel protective film is provided. In addition, the oxide semiconductor film used for an active layer of the transistor is an oxide semiconductor film highly purified to be electrically i-type (intrinsic) by heat treatment in which impurities such as hydrogen, moisture, a hydroxyl group, or a hydride are removed from the oxide semiconductor and oxygen which is a major constituent of the oxide semiconductor and is reduced concurrently with a step of removing impurities is supplied.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 9058987
    Abstract: A dielectric template layer is deposited on a substrate. Line trenches are formed within the dielectric template layer by an anisotropic etch that employs a patterned mask layer. The patterned mask layer can be a patterned photoresist layer, or a patterned hard mask layer that is formed by other image transfer methods. A lower portion of each line trench is filled with an epitaxial rare-earth oxide material by a selective rare-earth oxide epitaxy process. An upper portion of each line trench is filled with an epitaxial semiconductor material by a selective semiconductor epitaxy process. The dielectric template layer is recessed to form a dielectric material layer that provides lateral electrical isolation among fin structures, each of which includes a stack of a rare-earth oxide fin portion and a semiconductor fin portion.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: June 16, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Joseph Ervin, Chengwen Pei, Ravi M. Todi, Geng Wang
  • Patent number: 9054206
    Abstract: After a gate insulating film is formed over a gate electrode, in order to improve the quality of a microcrystalline semiconductor film which is formed in an early stage of deposition, a film near an interface with the gate insulating film is formed under a first deposition condition in which a deposition rate is low but the quality of a film to be formed is high, and then, a film is further deposited under a second deposition condition in which a deposition rate is high. Then, a buffer layer is formed to be in contact with the microcrystalline semiconductor film. Further, plasma treatment with a rare gas such as argon or hydrogen plasma treatment is performed before formation of the film under the first deposition condition for removing adsorbed water on a substrate.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: June 9, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Sachiaki Teduka, Satoshi Toriumi, Makoto Foruno, Yasuhiro Jinbo, Koji Dairiki, Hideaki Kuwabara
  • Patent number: 9054200
    Abstract: Electric characteristics of a semiconductor device using an oxide semiconductor are improved. Further, a highly reliable semiconductor device in which a variation in electric characteristics with time or a variation in electric characteristics due to a gate BT stress test with light irradiation is small is manufactured. A transistor includes a gate electrode, an oxide semiconductor film overlapping with part of the gate electrode with a gate insulating film therebetween, and a pair of electrodes in contact with the oxide semiconductor film. The gate insulating film is an insulating film whose film density is higher than or equal to 2.26 g/cm3 and lower than or equal to 2.63 g/cm3 and whose spin density of a signal with a g value of 2.001 is 2×1015 spins/cm3 or less in electron spin resonance.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: June 9, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenichi Okazaki, Toshiyuki Miyamoto, Masafumi Nomura, Takashi Hamochi
  • Publication number: 20150145046
    Abstract: The present invention provides a method for manufacturing a semiconductor structure, which comprises following steps: providing a substrate, which comprises upwards in order a base layer, a buried isolation layer, a buried ground layer, an ultra-thin insulating buried layer and a surface active layer; implementing ion implantation doping to the buried ground layer; forming a gate stack, sidewall spacers and source/drain regions on the substrate; forming a mask layer on the substrate that covers the gate stack and the source/drain regions, and etching the mask layer to expose the source region; etching the source region and the ultra-thin insulating buried layer under the source region to form an opening that exposes the buried ground layer; filling the opening through epitaxial process to form a contact plug for the buried ground layer. Accordingly, the present invention further provides a semiconductor structure.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 28, 2015
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Haizhou Yin, Huilong Zhu, Zhijiong Luo
  • Publication number: 20150145039
    Abstract: A semiconductor device configured to provide high heat dissipation and improve breakdown voltage comprises a substrate, a buried oxide layer over the substrate, a buried n+ region in the substrate below the buried oxide layer, and an epitaxial layer over the buried oxide layer. The epitaxial layer comprises a p-well, an n-well, and a drift region between the p-well and the n-well. The semiconductor device also comprises a source contact, a first electrode electrically connecting the source contact to the p-well, and a gate over a portion of the p-well and a portion of the drift region. The semiconductor device further comprises a drain contact, and a second electrode extending from the drain contact through the n-well and through the buried oxide layer to the buried n+ region. The second electrode electrically connects the drain contact to the n-well and to the buried n+ region.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tung-Yang LIN, Hsin-Chih CHIANG, Ruey-Hsin LIU, Ming-Ta LEI
  • Patent number: 9040369
    Abstract: The present disclosure provides a method for forming a semiconductor device that includes forming a replacement gate structure overlying a channel region of a substrate. A mandrel dielectric layer is formed overlying source and drain regions of the substrate. The replacement gate structure is removed to provide an opening exposing the channel region of the substrate. A functional gate structure is formed over the channel region including a work function metal layer. A protective cap structure is formed over the functional gate structure. At least one via is etched through the mandrel dielectric layer selective to the protective cap structure to expose a portion of at least one of the source region and the drain region. A conductive fill is then formed in the vias to provide a contact to the at least one of the source region and the drain region.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Shahab Siddiqui, Michael P. Chudzik, Carl J. Radens
  • Patent number: 9040363
    Abstract: An improved finFET structure, and method forming the same, including a plurality of fins etched from a semiconductor substrate, a plurality of gates above and perpendicular to the plurality of fins, each comprising a pair of spacers on opposing sides of the gates, and a gap fill material above the semiconductor substrate, below the gate, and between the plurality of fins, wherein the gate separates the gap fill material from each of the plurality of fins.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Veeraraghavan S. Basker, Kangguo Cheng, Ali Khakifirooz, Charles W. Koburger, III
  • Patent number: 9041147
    Abstract: According to a semiconductor substrate (40), a space (A) between a plurality of Si thin film (16), which are provide apart from one another on the insulating substrate (30), is (I) larger than a difference between elongation of part of the insulating substrate which part corresponds to the space (A) and elongation of each of Si wafers (10) when a change is made from room temperature to 600° C. and (II) smaller than 5 mm. This causes an increase in a region of each of a plurality of semiconductor thin films which region has a uniform thickness, and therefore prevents transferred semiconductor layers and the insulating substrate from being fractured or chipped.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 26, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masahiro Mitani
  • Patent number: 9040396
    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: January 31, 2014
    Date of Patent: May 26, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masami Jintyou, Yamato Aihara, Katsuaki Tochibayashi, Toru Arakawa
  • Patent number: 9040971
    Abstract: A thin film transistor (TFT) that includes a control electrode, a semiconductor pattern, a first input electrode, a second input electrode, and an output electrode is disclosed. in one aspect, the semiconductor pattern includes a first input area, a second input area, a channel area, and an output area. The channel area is formed between the first input area and the output area and overlapped with the control electrode to be insulated from the control electrode. The second input area is formed between the first input area and the channel area and doped with a doping concentration different from a doping concentration of the first input areas. The second input electrode makes contact with the second input area and receives a control voltage to control a threshold voltage.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong Soo Lee
  • Publication number: 20150137874
    Abstract: A Silicon On Insulator current source array includes input control for receiving a control voltage, a first reference input for receiving a first reference voltage, and a second reference input for receiving a second reference voltage. A chain of several Silicon On Insulator MOS transistors, of the same type, have control electrodes all connected to the input control, first conduction electrodes are all connected to the first reference input, and second conduction electrodes are respectively connected to the second reference input through several load circuits respectively configured to be traversed by several currents when the several transistors are ON upon application of the control voltage on the input control. An input bias is coupled to a semiconductor well located below an insulating buried layer located below the chain of transistors for receiving a biasing voltage difference.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Andreia CATHELIN, Bram Nauta
  • Publication number: 20150137116
    Abstract: An array substrate includes a display area and a peripheral area adjacent to the display area; the display area includes a plurality of pixel units; each pixel unit includes a thin-film transistor (TFT) and a pixel electrode; and a drain electrode of the TFT directly contacts with the pixel electrode. In the array substrate, the drain electrode of the TFT directly contacts with the pixel electrode, and hence a uniformly distributed electric field will be generated between common electrodes and the pixel electrodes.
    Type: Application
    Filed: June 18, 2013
    Publication date: May 21, 2015
    Inventors: Xiangyang Xu, Zhuhua Nie, Liyun Deng, Minsu Kim, Kai Wang
  • Publication number: 20150137076
    Abstract: A semiconductor device including a graphene layer and a method of manufacturing the same are disclosed. A method in which graphene is grown on a catalyst metal by a chemical vapor deposition or the like is known. However, the graphene cannot be used as a channel, since the graphene is in contact with the catalyst metal, which is conductive. There is disclosed a method in which a catalyst film (2) is formed over a substrate (1), a graphene layer (3) is grown originating from the catalyst film (2), an electrode (4) in contact with the graphene layer (3) is formed, and the catalyst film (2) is removed.
    Type: Application
    Filed: December 8, 2014
    Publication date: May 21, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Daiyu KONDO, Shintaro SATO
  • Publication number: 20150137234
    Abstract: Embodiments of mechanisms for forming a semiconductor device structure with floating spacers are provided. The semiconductor device structure includes a silicon-on-insulator (SOI) substrate and a gate stack formed on the SOI substrate. The semiconductor device structure also includes gate spacers formed on sidewalls of the gate stack. The gate spacers include a floating spacer. The semiconductor device structure further includes a contact etch stop layer formed on the gate stack and the gate spacers. The contact etch stop layer is formed between the floating spacer and the SOI substrate.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 21, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kuo-Yu CHENG, Wei-Kung TSAI, Kuan-Chi TSAI
  • Patent number: 9035277
    Abstract: The present disclosure provides a method for fabricating an integrated circuit (IC) device. The method includes providing a precursor including a substrate having first and second metal-oxide-semiconductor (MOS) regions. The first and second MOS regions include first and second gate regions, semiconductor layer stacks, source/drain regions and isolation regions. The method includes exposing and oxidizing the first semiconductor layer stack to form a first outer oxide layer and a first inner nanowire, and removing the first outer oxide layer to expose the first inner nanowire in the first gate region. A first high-k/metal gate (HK/MG) stack wraps around the first inner nanowire. The method includes exposing and oxidizing the second semiconductor layer stack to form second outer oxide layer and inner nanowire, and removing the second outer oxide layer to expose the second inner nanowire in the second gate region. A second HK/MG stack wraps around the second inner nanowire.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 19, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Ting-Hung Hsu
  • Patent number: 9035330
    Abstract: An organic light-emitting display device and a method of manufacturing the same are disclosed. The organic light-emitting display device includes: a substrate, a plurality of pixels on the substrate, a plurality of first electrodes, each disposed in each of the plurality of pixels, a pixel defining layer including a first pixel defining sub-layer disposed between each two adjacent first electrodes, and a second pixel defining sub-layer covering the first pixel defining sub-layer and surface edge portions of each two adjacent first electrodes, an intermediate layer disposed on each of the first electrodes and including an emission layer, and a second electrode configured to face the first electrodes.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 19, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Goo Kang, Mu-Hyun Kim, Jae-Bok Kim, Dong-Kyu Lee, Ji-Young Kim
  • Patent number: 9035296
    Abstract: A thin film transistor includes a semiconductor layer disposed on a base substrate and including an oxide semiconductor material, a source electrode and a drain electrode, which respectively extend from opposing ends of the semiconductor layer, a plurality of low carrier concentration areas respectively disposed between the source electrode and the semiconductor layer and between the drain electrode and the semiconductor layer, a gate insulating layer disposed on the semiconductor layer, and a gate electrode disposed on the gate insulating layer.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seohong Jung, Sun Hee Lee, Seung-Hwan Cho, Myounggeun Cha, Yoonho Khang, Youngki Shin
  • Publication number: 20150132896
    Abstract: Semiconductor nanoparticles are deposited on a top surface of a first insulator layer of a substrate. A second insulator layer is deposited over the semiconductor nanoparticles and the first insulator layer. A semiconductor layer is then bonded to the second insulator layer to provide a semiconductor-on-insulator substrate, which includes a buried insulator layer including the first and second insulator layers and embedded semiconductor nanoparticles therein. Back gate electrodes are formed underneath the buried insulator layer, and shallow trench isolation structures are formed to isolate the back gate electrodes. Field effect transistors are formed in a memory device region and a logic device region employing same processing steps. The embedded nanoparticles can be employed as a charge storage element of non-volatile memory devices, in which charge carriers tunnel through the second insulator layer into or out of the semiconductor nanoparticles during writing and erasing.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventors: Kangguo Cheng, Robert H. Dennard, Hemanth Jagannathan, Ali Khakifirooz, Tak H. Ning, Ghavam G. Shahidi
  • Publication number: 20150132897
    Abstract: A semiconductor device and a method for manufacturing the same are provided. A barrier film is formed in a device separating structure, and the device separating structure is etched at a predetermined thickness to expose a semiconductor substrate. Then, a SEG film is grown to form an active region whose area is increased. As a result, a current driving power of a transistor located at a cell region and peripheral circuit regions is improved.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventor: Young Bog KIM
  • Publication number: 20150129881
    Abstract: The present invention provides a pixel unit including a thin film transistor and a pixel electrode, the thin film transistor includes a gate, a source and a drain, and the pixel electrode is electrically connected to the drain through a via hole. An upper end surface of the via hole is connected to the pixel electrode, and a lower end surface of the via hole is connected to the drain. The via hole is a step-shaped hole, and an area of the upper end surface of the via hole is larger than that of the lower end surface of the via hole. The present invention also provides a method of fabricating the pixel unit, an array substrate including the pixel unit, and a display device including the array substrate.
    Type: Application
    Filed: November 28, 2013
    Publication date: May 14, 2015
    Inventors: Xiangyong Kong, Dongfang Wang, Jun Cheng, Hongda Sun
  • Publication number: 20150132898
    Abstract: In a method of fabricating a semiconductor device, a silicon-on-insulator (SOI) substrate is provided. This SOI substrate comprises a buried oxide layer and an ETSOI layer between the buried oxide layer and a surface of the SOI substrate. A dummy gate is formed on the ETSOI. At least two raised source/drain regions are epitaxially formed adjacent to the dummy gate, and a protective cap is formed thereon. An etch process employing at least one acid is used to remove the dummy gate from the ETSOI. A gate dielectric layer is deposited on the protective cap and the ETSOI after removing the dummy gate. A replacement metal gate is then formed on the gate dielectric layer to replace the removed dummy gate, the gate dielectric layer is removed from the protective metal cap, and the protective cap is removed from the raised source/drain regions.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Inventors: Kangguo Cheng, Junli Wang, Keith Kwong Hon Wong, Chih-Chao Yang
  • Patent number: 9029208
    Abstract: In a method of fabricating a semiconductor device, a silicon-on-insulator (SOI) substrate is provided. This SOI substrate comprises a buried oxide layer and an ETSOI layer between the buried oxide layer and a surface of the SOI substrate. A dummy gate is formed on the ETSOI. At least two raised source/drain regions are epitaxially formed adjacent to the dummy gate, and a protective cap is formed thereon. An etch process employing at least one acid is used to remove the dummy gate from the ETSOI. A gate dielectric layer is deposited on the protective cap and the ETSOI after removing the dummy gate. A replacement metal gate is then formed on the gate dielectric layer to replace the removed dummy gate, the gate dielectric layer is removed from the protective metal cap, and the protective cap is removed from the raised source/drain regions.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 12, 2015
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Junli Wang, Keith Kwong Hon Wong, Chih-Chao Yang