Patents Examined by Galina Yushina
  • Patent number: 8896049
    Abstract: A manufacturing method of a semiconductor device of the present invention includes the steps of forming a stacked body in which a semiconductor film, a gate insulating film, and a first conductive film are sequentially stacked over a substrate; selectively removing the stacked body to form a plurality of island-shaped stacked bodies; forming an insulating film to cover the plurality of island-shaped stacked bodies; removing a part of the insulating film to expose a surface of the first conductive film, such that a surface of the first conductive film almost coextensive with a height of the insulating film; forming a second conductive film over the first conductive film and a left part of the insulating film; forming a resist over the second conductive film; selectively removing the first conductive film and the second conductive film using the resist as a mask.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: November 25, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Atsuo Isobe, Tamae Takano, Yasuyuki Arai, Fumiko Terasawa
  • Patent number: 8895400
    Abstract: A semiconductor device includes a semiconductor substrate having a cell region and a peripheral circuit region defined therein. A buried word line is disposed in the substrate in the cell region and has a top surface lower than top surfaces of cell active regions in the cell region. A gate line is disposed on the substrate in the peripheral circuit region. A word line interconnect is disposed in the substrate in the peripheral circuit region, the word line interconnect including a first portion contacting the buried word line and having a top surface lower than a top surfaces of the cell active regions and a second portion that is overlapped by and in contact with the gate line.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeoung-Won Seo, Yun-Gi Kim, Young-Woong Son, Bong-Soo Kim
  • Patent number: 8896002
    Abstract: A method for producing a semiconductor laser having an edge window structure includes the steps of forming masks of insulating films on a nitride-based III-V compound semiconductor substrate including first regions and second regions periodically arranged in parallel therebetween; and growing a nitride-based III-V compound semiconductor layer in a region not covered by the masks. The first region between each two adjacent second regions has two or more positions, symmetrical with respect to a center line thereof, where laser stripes are to be formed. The masks are formed on one or both sides of each of the positions where the laser stripes are to be formed at least near a position where edge window structures are to be formed such that the masks are symmetrical with respect to the center line. The nitride-based III-V compound semiconductor layer includes an active layer containing at least indium and gallium.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventors: Rintaro Koda, Masaru Kuramoto, Eiji Nakayama, Tsuyoshi Fujimoto
  • Patent number: 8895980
    Abstract: The present invention discloses a tunneling current amplification transistor, which relates to an area of field effect transistor logic devices in CMOS ultra large scale semiconductor integrated circuits (ULSI). The tunneling current amplification transistor includes a semiconductor substrate, a gate dielectric layer, an emitter, a drain, a floating tunneling base and a control gate, wherein the drain, the floating tunneling base and the control gate forms a conventional TFET structure, and a doping type of the emitter is opposite to that of the floating tunneling base. A position of the emitter is at the other side of the floating tunneling base with respect to the drain. A type of the semiconductor between the emitter and the floating tunneling base is the same as that of the floating tunneling base.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: November 25, 2014
    Assignee: Peking University
    Inventors: Ru Huang, Zhan Zhan, Qianqian Huang, Yangyuan Wang
  • Patent number: 8835261
    Abstract: The disclosure relates generally to a metal-oxide-semiconductor field effect transistor (MOSFET) structures and methods of forming the same. The MOSFET structure includes at least one semiconductor body on a substrate; a dielectric cap on a top surface of the at least one semiconductor body, wherein a width of the at least one semiconductor body is less than a width of the dielectric cap; a gate dielectric layer conformally coating the at least one semiconductor body; and at least one electrically conductive gate on the gate dielectric layer.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: September 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Edward J. Nowak, Richard Q. Williams
  • Patent number: 8835938
    Abstract: There is provided a nitride semiconductor light-emitting element including a transparent conductor, a first conductivity-type nitride semiconductor layer, a light-emitting layer, and a second conductivity-type nitride semiconductor layer, the first conductivity-type nitride semiconductor layer, the light-emitting layer, and the second conductivity-type nitride semiconductor layer being successively stacked on the transparent conductor. There is also provided a nitride semiconductor light-emitting element including a first transparent conductor, a metal layer, a second transparent conductor, a first conductivity-type nitride semiconductor layer, a light-emitting layer, and a second conductivity-type nitride semiconductor layer, the metal layer, the second transparent conductor, the first conductivity-type nitride semiconductor layer, the light-emitting layer, and the second conductivity-type nitride semiconductor layer being successively stacked on the first transparent conductor.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: September 16, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshio Hata
  • Patent number: 8829524
    Abstract: An exemplary thin film transistor array substrate (200) includes a substrate (210) and a gate electrode (220) formed on the substrate. The gate electrode includes an adhesive layer (226) formed on the substrate, a conductive layer (224) formed on the adhesive layer and a barrier layer (222) formed on the conductive layer, the adhesive layer and the barrier layer both have sandwich structures. A central core of the adhesive layer, the conductive layer, and a central core of the barrier layer are made of a same material.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: September 9, 2014
    Assignee: Innolux Corporation
    Inventor: Shuo-Ting Yan
  • Patent number: 8829488
    Abstract: Provided is a laminate containing a first compound semiconductor layer; and a second compound semiconductor layer integrally bonded to the first compound semiconductor layer via a bonding layer. A plane A is in the second compound semiconductor layer bonded to a surface where a plane B is in the first compound semiconductor layer, or a surface where a plane B is in the second compound semiconductor layer bonded to a surface where a plane A in the first compound semiconductor layer. The impurity concentration of the bonding layer is 2×1018 cm3 or more.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyoshi Furukawa, Yasuhiko Akaike, Shunji Yoshitake
  • Patent number: 8815658
    Abstract: The present invention provides a method of forming a transistor. The method includes forming a first layer of a first semiconductor material above an insulation layer. The first semiconductor material is selected to provide high mobility to a first carrier type. The method also includes forming a second layer of a second semiconductor material above the first layer of semiconductor material. The second semiconductor material is selected to provide high mobility to a second carrier type opposite the first carrier type. The method further includes forming a first masking layer adjacent the second layer and etching the second layer through the first masking layer to form at least one feature in the second layer. Each feature in the second layer forms an inverted-T shape with a portion of the second layer.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 26, 2014
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Hemant Adhikari, Rusty Harris
  • Patent number: 8809990
    Abstract: Provided are a semiconductor device including a high voltage transistor and a low voltage transistor and a method of manufacturing the same. The semiconductor device includes a semiconductor substrate including a high voltage region and a low voltage region; a high voltage transistor formed in the high voltage region and including a first active region, a first source/drain region, a first gate insulating layer, and a first gate electrode; and a low voltage transistor formed in the low voltage region and including a second active region, a second source/drain region, a second gate insulating layer, and a second gate electrode. The second source/drain region has a smaller thickness than a thickness of the first source/drain region.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shigenobu Maeda, Hyun-pil Noh, Choong-ho Lee, Seog-heon Ham
  • Patent number: 8779492
    Abstract: A semiconductor device includes a first island and a first electrode. The first island includes a first semiconductor region, a first insulation region, and a first insulating film. The first semiconductor region has first and second side surfaces adjacent to the first insulation region and the first insulating film, respectively. The first electrode is adjacent to the first insulation region and the first insulating film. The first insulating film is between the first electrode and the first semiconductor region.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: July 15, 2014
    Assignee: PS4 Luxco S.A.R.L.
    Inventors: Yoshihiro Takaishi, Kazuhiro Nojima
  • Patent number: 8778771
    Abstract: A method of manufacturing a semiconductor device includes steps of providing a substrate including a semiconductor portion, a non-porous semiconductor layer, and a porous semiconductor layer arranged between the semiconductor portion and the non-porous semiconductor layer, forming a porous oxide layer by oxidizing the porous semiconductor layer, forming a bonded substrate by bonding a supporting substrate to a surface, on a side of the non-porous semiconductor layer, of the substrate on which the porous oxide layer is formed, and separating the semiconductor portion from the bonded substrate by utilizing the porous oxide layer.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuo Kokumai
  • Patent number: 8766399
    Abstract: To improve a performance of a semiconductor device having a capacitance element. An MIM type capacitance element, an electrode of which is formed with comb-shaped metal patterns composed of the wirings, is formed over a semiconductor substrate. A conductor pattern, which is a dummy gate pattern for preventing dishing in a CMP process, and an active region, which is a dummy active region, are disposed below the capacitance element, and these are coupled to shielding metal patterns composed of the wirings and then connected to a fixed potential. Then, the conductor pattern and the active region are disposed so as not to overlap the comb-shaped metal patterns in the wirings in a planar manner.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: July 1, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Satoshi Maeda, Yasushi Sekine, Tetsuya Watanabe
  • Patent number: 8759872
    Abstract: A structure and method of fabrication thereof relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. A novel dopant profile indicative of a distinctive notch enables tuning of the VT setting within a precise range. This VT set range may be extended by appropriate selection of metals so that a very wide range of VT settings is accommodated on the die. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. The result is the ability to independently control VT (with a low ?VT) and VDD, so that the body bias can be tuned separately from VT for a given device.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 24, 2014
    Assignee: SuVolta, Inc.
    Inventors: Reza Arghavani, Pushkar Ranade, Lucian Shifren, Scott E. Thompson, Catherine de Villeneuve
  • Patent number: 8753981
    Abstract: Microelectronic devices with through-silicon vias and associated methods of manufacturing such devices. One embodiment of a method for forming tungsten through-silicon vias comprising forming an opening having a sidewall such that the opening extends through at least a portion of a substrate on which microelectronic structures have been formed. The method can further include lining the sidewall with a dielectric material, depositing tungsten on the dielectric material such that a cavity extends through at least a portion of the tungsten, and filling the cavity with a polysilicon material.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: June 17, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Kyle K. Kirby, Kunal R. Parekh, Philip J. Ireland, Sarah A. Niroumand
  • Patent number: 8742534
    Abstract: A semiconductor device having a lateral diode includes a semiconductor layer, a first semiconductor region in the semiconductor layer, a contact region having an impurity concentration greater than that of the first semiconductor region, a second semiconductor region located in the semiconductor layer and separated from the contact region, a first electrode electrically connected through the contact region to the first semiconductor region, and a second electrode electrically connected to the second semiconductor region. The second semiconductor region includes a low impurity concentration portion, a high impurity concentration portion, and an extension portion. The second electrode forms an ohmic contact with the high impurity concentration portion. The extension portion has an impurity concentration greater than that of the low impurity concentration portion and extends in a thickness direction of the semiconductor layer.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: June 3, 2014
    Assignee: DENSO CORPORATION
    Inventors: Takao Yamamoto, Norihito Tokura, Hisato Kato, Akio Nakagawa
  • Patent number: 8737647
    Abstract: A display, includes: a display section; a first output section; a second output section; and a housing containing the display section, the first output section, and the second output section, wherein, the display section has an aspect ratio with a width more than twice a height, the first output section is arranged along an upper side of the display section so as to face forward and is configured to output a plurality of channels of audio, and the second output section is arranged along a lower side of the display section so as to face forward and is configured to output a plurality of channels of audio.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: May 27, 2014
    Assignee: Sony Corporation
    Inventor: Gen Fujiki
  • Patent number: 8735922
    Abstract: A LED mirror light assembly comprises a body having a through hole configured subject to a predetermined shape and located on a middle part thereof, a film-coated glass configured subject to shape of the through hole and supported on a first step, a LED holder holding a plurality of light-emitting diodes, and a reflector comprising a reflective surface located on a front side thereof and facing toward the light-emitting diodes and a light-shading coating coated on a rear side thereof The reflector being kept in a non-parallel manner relative to the film-coated glass and defining with the film-coated glass a predetermined contained angle so that the light spots of the light-emitting diodes are repeatedly reflected by the reflective back face of the film-coated glass and the reflective surface of the reflector, forming a curved tunnel of light spots.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 27, 2014
    Inventor: Chien-Tsai Tsai
  • Patent number: 8723259
    Abstract: A SiC semiconductor device capable of increasing a switching speed without destroying a gate insulating film. In addition, in a SiC-MOSFET including an n-type semiconductor substrate formed of SiC, a p-type semiconductor layer is entirely or partially provided on an upper surface of a p-type well layer that has a largest area of the transverse plane among a plurality of p-type well layers provided in an n-type drift layer and is arranged on an outermost periphery immediately below a gate electrode pad. It is preferable that a concentration of an impurity contained in the p-type semiconductor layer be larger than that of the p-type well layer.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: May 13, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yukiyasu Nakao, Masayuki Imaizumi, Shuhei Nakata, Naruhisa Miura
  • Patent number: 8704244
    Abstract: In order to provide an LED light emitting device that can easily control a color temperature of white light, the LED light emitting device is provided with a plurality of types of light emitting parts that: respectively have LED elements that emit ultraviolet radiation or violet color visible light, and phosphors that absorb the ultraviolet radiation or violet color visible light to emit colored light; and emit the colored light, wherein: the colored light emitted by the plurality of types of light emitting parts become white light when all mixed with each other; the LED elements of the plurality of types of light emitting parts are all the same ones, and mounted on a single base material; and two or more light emitting parts overlap with each other in their parts.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: April 22, 2014
    Assignee: CCS, Inc.
    Inventors: Hirokazu Suzuki, Jun Konishi, Yuichiro Tanaka, Kenji Yoneda