Patents Examined by Junaiden Mirsalahuddin
  • Patent number: 9263549
    Abstract: A method of forming a field effect transistor includes forming a punchthrough region having a first conductivity type in a substrate, forming an epitaxial layer having the first conductivity type on the substrate, patterning the epitaxial layer to form a fin that protrudes from the substrate, forming a dummy gate and gate sidewall spacers on the fin defining preliminary source and drain regions of the fin on opposite sides of the dummy gate, removing the preliminary source and drain regions of the fin, implanting second conductivity type dopant atoms into exposed portions of the substrate and the punchthrough region, and forming source and drain regions having the second conductivity type on opposite sides of the dummy gate and the gate sidewall spacers.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mark S. Rodder, Chris Bowen
  • Patent number: 9257610
    Abstract: A light emitting diode includes: a substrate; an n-type semiconductor layer disposed on the substrate; an active layer disposed on the n-type semiconductor layer; a p-type semiconductor layer disposed on the active layer; a first electrode disposed on the p-type semiconductor layer and made of a metal oxide; a second electrode disposed on the first electrode and made of graphene; a p-type electrode disposed on the second electrode; and an n-type electrode disposed on the n-type semiconductor layer, wherein a work function of the first electrode is less than a work function of the p-type semiconductor layer, but is greater than a work function of the second electrode.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 9, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Doo Hyeb Youn, Young-Jun Yu, Kwang Hyo Chung, Choon Gi Choi
  • Patent number: 9245999
    Abstract: A semiconductor device includes: a semiconductor substrate having a drift layer of a first conductivity type, a body layer of a second conductivity type formed on a surface of the drift layer, and a source layer formed on a portion of a surface of the body layer; a gate insulation film formed on an inner wall of a trench that extends from the surface of the semiconductor substrate through the source layer and the body layer to the drift layer; and a gate electrode housed in the trench and covered with the gate insulation film, the gate electrode including, in a region located at a drift layer side of a boundary between the body and drift layers, at least one first semiconductor layer of the first conductivity type and at least one second semiconductor layer of the second conductivity type that are alternately disposed and joined to each other.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: January 26, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomonari Sawada
  • Patent number: 9230858
    Abstract: A semiconductor device is manufactured by etching a semiconductor substrate including an active region, forming a bit line contact hole from which the active region is protruded, forming a first spacer exposing a top of the active region at each of an inner wall and a bottom of the bit line contact hole, forming a bit line contact plug and a bit line over the exposed active region, and forming a second spacer over the semiconductor substrate including not only the bit line contact plug but also the bit line.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 5, 2016
    Assignee: SK HYNIX INC.
    Inventors: Jae Young Kim, Mi Hyune You
  • Patent number: 9224669
    Abstract: A method to provide a wafer level package with increasing contact pad area comprising the steps of forming a first packaging layer on wafer top surface, grinding the wafer back surface and etch through holes, depositing a metal to fill the through holes and covering wafer backside, cutting through the wafer from wafer backside forming a plurality of grooves separating each chip then depositing a second packaging layer filling the grooves and covering the wafer back metal, reducing the first packaging layer thickness to expose the second packaging layer filling the grooves and forming a plurality of contact pads overlaying the first packaging layer thereafter cutting through the second packaging layer in the grooves to form individual package.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: December 29, 2015
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventor: Yan Xun Xue
  • Patent number: 9224881
    Abstract: An imaging device includes a semiconductor substrate having a photosensitive element for accumulating charge in response to incident image light. The semiconductor substrate includes a light-receiving surface positioned to receive the image light. The imaging device also includes a negative charge layer and a charge sinking layer. The negative charge layer is disposed proximate to the light-receiving surface of the semiconductor substrate to induce holes in an accumulation zone in the semiconductor substrate along the light-receiving surface. The charge sinking layer is disposed proximate to the negative charge layer and is configured to conserve or increase an amount of negative charge in the negative charge layer. The negative charge layer is disposed between the semiconductor substrate and the charge sinking layer.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 29, 2015
    Assignee: OmniVision Technologies, Inc.
    Inventors: Chih-Wei Hsiung, Oray Orkun Cellek, Gang Chen, Duli Mao, Vincent Venezia, Hsin-Chih Tai
  • Patent number: 9219077
    Abstract: A semiconductor device includes: a first substrate on which a first field effect transistor is provided; and a second substrate on which a second field effect transistor of a second conductive type is provided; the first and second substrates being bonded to each other at the substrate faces thereof on which the first and second field transistors are provided, respectively; the first field effect transistor and the second field effect transistor being electrically connected to each other.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: December 22, 2015
    Assignee: Sony Corporation
    Inventor: Takashi Yokoyama
  • Patent number: 9209253
    Abstract: A nitride based semiconductor device includes a first metallic junction layer, a Schottky junction layer on the first metallic junction layer, a first group III nitride semiconductor layer on the Schottky junction layer, a first insulating pattern layer on the first group III nitride semiconductor layer, the first insulating layer pattern including curved protrusions, a second group III nitride semiconductor layer laterally grown on the first group III nitride semiconductor layer, a first type group III nitride semiconductor layer on the second group III nitride semiconductor layer, the first type group III nitride semiconductor layer being simultaneously doped with aluminum (Al) and silicon (Si), an ohmic junction layer formed on the first type group III nitride semiconductor layer, a second metallic junction layer on the ohmic junction layer, and a metallic supporting substrate on the second metallic junction layer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 8, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Hoon Lee, Ki Se Kim
  • Patent number: 9196751
    Abstract: A method for simultaneously forming JFET devices and MOSFET devices on a substrate includes using gate structures which serve as active gate structures in the MOSFET region, as dummy gate structures in the JFET portion of the device. The dummy gate electrodes are used as masks and determine the spacing between gate regions and source/drain regions, the width of the gate regions, and the spacing between adjacent gate regions according to some embodiments. The transistor channel is therefore accurately dimensioned.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: November 24, 2015
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hua-Chou Tseng, Han-Chung Lin
  • Patent number: 9190434
    Abstract: Techniques and mechanisms to improve potential well characteristics in a pixel cell. In an embodiment, a coupling portion of a pixel cell couples a reset transistor of the pixel cell to a floating diffusion node of the pixel cell, the reset transistor to reset a voltage of the floating diffusion node. In another embodiment, the pixel cell includes a shield line which extends athwart the coupling portion, where the shield line is to reduce a parasitic capacitance of the reset transistor to the floating diffusion node.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: November 17, 2015
    Assignee: OmniVision Technologies, Inc.
    Inventor: Sohei Manabe
  • Patent number: 9177954
    Abstract: A semiconductor device has a semiconductor substrate and a breakdown voltage adjusting first conductivity type low concentration region provided on the semiconductor substrate. A second conductivity type high concentration region is provided near a surface within the breakdown voltage adjusting first conductivity type low concentration region so as to be surrounded by the first conductivity type low concentration region but not surrounded by any low concentration region other than the first conductivity type low concentration region. A first conductivity type high concentration region is provided on the surface within the breakdown voltage adjusting first conductivity type low concentration region without being held in contact with the second conductivity type high concentration region.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: November 3, 2015
    Assignee: SEIKO INSTRUMENTS INC.
    Inventor: Tomomitsu Risaki
  • Patent number: 9136320
    Abstract: A field effect transistor includes a semiconductor substrate having a protrusion with at least one inclined surface, a gate insulator disposed at least on a portion of the inclined surface, and a gate conductor disposed on the gate insulator, wherein the semiconductor substrate comprises doped regions sandwiching a channel region, wherein the at least one inclined surface has a first crystal orientation in the channel region, and the inclined surface has an included angle to a vertical plane with a second crystal orientation. The hole mobility and the electron mobility are substantially the same in the channel region having a crystalline orientation off from the (110) crystal orientation.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: September 15, 2015
    Assignee: DESIGN EXPRESS LIMITED
    Inventor: Chun Yen Chang
  • Patent number: 9136229
    Abstract: An electrostatic discharge (ESD) protection device is provided. A proper trigger voltage is determined by providing an ESD doped injection layer into a PNPN structure and adjusting the injection energy and dosage of the ESD doped injection layer; a proper holding voltage is obtained by adjusting the size of the ESD doped injection layer, thus preventing the latch-up. The self-isolation effect of the electrostatic discharge protection device is formed on the basis of an epitaxial wafer high voltage process or a silicon-on-insulator (SOI) wafer high voltage process, the ESD protective device of the present invention can prevent the device from being falsely triggered due to noise interference. Compared with other known ESD protection devices, the device has the same electrostatic protection ability, much smaller area, and much lower cost.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: September 15, 2015
    Assignee: CSMC TECHNOLOGIES FABI CO., LTD.
    Inventor: Meng Dai
  • Patent number: 9129922
    Abstract: An organic light-emitting display device and a method of manufacturing the same. The organic light-emitting display device has a structure including an organic layer between a pixel electrode and an opposite electrode, the organic layer including a emissive layer and an insulating layer defining a light emission area. Accordingly, the insulating layer included in the organic layer functions as a pixel-defining layer, and thus, “edge open”, which is generated when forming an emissive layer on a thick pixel-defining layer according to the comparable art, may be reduced or prevented.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 8, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Min Kang, Jin-Woo Park, Noh-Min Kwak, Seung-Mook Lee
  • Patent number: 9117906
    Abstract: A method is provided for fabricating a fin field-effect transistor. The method includes providing a semiconductor substrate, and forming a plurality of fins with hard mask layers and an isolation structure. The process also includes forming a first dummy gate layer on the fins and the isolation structure, and polishing the first dummy gate layer until the hard mask layer is exposed. Further, the method includes removing the hard mask layer to expose a top surface of the fins, and forming a second dummy gate material layer on the first dummy gate material layer. Further, the method also includes etching the second dummy gate layer and the first dummy gate layer to form a dummy gate on each of the fins.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: August 25, 2015
    Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL CORP
    Inventors: Mieno Fumitake, Huaxiang Yin
  • Patent number: 9111989
    Abstract: A semiconductor device includes an IGBT having a semiconductor body including a transistor cell array in a first area. A junction termination structure is in a second area surrounding the transistor cell array at a first side of the semiconductor body. An emitter region of a first conductivity type is at a second side of the semiconductor body opposite the first side. The device further includes a diode. One of the diode anode and cathode includes the body region. The other one of the anode and the cathode includes a plurality of distinct first emitter short regions of a second conductivity type at the second side facing the transistor cell array, and at least one second emitter short region of the second conductivity type at the second side facing the junction termination structure. The at least one second emitter short region is distinct from the first emitter short regions.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: August 18, 2015
    Assignee: Infineon Technologies Austria AG
    Inventors: Stephan Voss, Erich Griebl, Alexander Breymesser
  • Patent number: 9099492
    Abstract: Disclosed herein are various methods of forming replacement gate structures with a recessed channel region. In one example, the method includes forming a sacrificial gate structure above a semiconducting substrate, removing the sacrificial gate structure to thereby define an initial gate opening having sidewalls and to expose a surface of the substrate and performing an etching process on the exposed surface of the substrate to define a recessed channel in the substrate. The method includes the additional steps of forming a sidewall spacer within the initial gate opening on the sidewalls of the initial gate opening to thereby define a final gate opening and forming a replacement gate structure in the final gate opening.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: August 4, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Kuldeep Amarnath, Michael Hargrove, Srikanth Samavedam
  • Patent number: 9093621
    Abstract: The present invention provides a molded package for a light emitting device including a molded resin and first and second leads, the exposed surface of the first lead having a first and second edge portions opposed to each other so as to put a mounting area therebetween in a first direction, the first and second edge portions respectively having one first cutout and second cutouts, the mounting area having a size not less than a distance between the first and the second cutouts and less than a distance between the first the second edge portions in the first direction.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 28, 2015
    Assignee: NICHIA CORPORATION
    Inventors: Nobuhide Kasae, Keisuke Sejiki
  • Patent number: 9087967
    Abstract: A light-emitting device of an embodiment of the present application comprises a substrate; a first semiconductor light-emitting structure formed on the substrate, wherein the first semiconductor light-emitting structure comprises a first semiconductor layer having a first conductivity type, a second semiconductor layer having a second conductivity type and a first active layer formed between the first semiconductor layer and the second semiconductor layer, wherein the first active layer is capable of emitting a first light having a first dominant wavelength; and a first thermal-sensitive layer formed on a path of the first light, wherein the first thermal-sensitive layer comprises a material characteristic which varies with a temperature change.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: July 21, 2015
    Assignee: EPISTAR CORPORATION
    Inventors: Shih-I Chen, Tsung-Xian Lee, Yi-Ming Chen, Wei-Yu Chen, Ching-Pei Lin, Min-Hsun Hsieh, Cheng-Nan Han, Tien-Yang Wang, Hsing-Chao Chen, Hsin-Mao Liu, Zong-Xi Chen, Tzu-Chieh Hsu, Chien-Fu Huang, Yu-Ren Peng
  • Patent number: 9059275
    Abstract: The present invention provides a semiconductor device that ensures both the breakdown voltage characteristic and specific on-resistance characteristic required for a high-voltage semiconductor device and that includes a gate over a substrate, a source region formed at one side of the gate, a drain region formed at the other side of the gate, and a plurality of device isolation films formed between the source region and the drain region, below the gate.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: June 16, 2015
    Assignee: SK Hynix Inc.
    Inventor: Dae-Hoon Kim