Patents Examined by Jack Chen
  • Patent number: 8487318
    Abstract: A semiconductor device of the present invention includes a semiconductor layer composed of SiC, a metal layer directly bonded to one face of the semiconductor layer, and a high carbon concentration layer formed on a surface layer portion at one side of the semiconductor layer and containing more highly concentrated carbon than a surface layer portion of the other side. Further, a manufacturing method of a semiconductor device of the present invention includes the steps of forming, on a surface layer portion at one face side of a semiconductor layer composed of SiC, a high carbon concentration layer containing more highly concentrated carbon than a surface layer portion at the other face side by heat treatment and directly bonding metal to the high carbon concentration layer.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: July 16, 2013
    Assignee: Rohm Co., Ltd.
    Inventor: Yuki Nakano
  • Patent number: 8486728
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate—such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 16, 2013
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 8481349
    Abstract: A method for manufacturing a semiconductor light emitting device can result in a device that includes a housing having a cavity, a light emitting element on a bottom face of the cavity, and a wavelength conversion layer provided within the cavity. The wavelength conversion layer can include particles of a wavelength conversion material. The method includes forming the wavelength conversion layer within the cavity, which can include applying and hardening a first material to form a first wavelength conversion layer on the light emitting element, and applying and hardening a second material to substantially fill the remainder of the entire cavity, thereby forming a second wavelength conversion layer. The semiconductor light emitting device manufactured by the inventive method can achieve uniform light emitting characteristics without substantially any uneven color and can include high heat dissipation efficiency.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: July 9, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Mitsunori Harada
  • Patent number: 8471305
    Abstract: A semiconductor device includes an active region defined by an isolation region formed in a cell area, buried gates disposed in the active region and the isolation region, conduction layers disposed on the active region and having the same heights as an surface of the isolation region, and a line type storage node contact connected with one of the conduction layers.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: June 25, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventor: Do Hyung Kim
  • Patent number: 8450835
    Abstract: One embodiment of the invention provides a semiconductor diode device including a first conductivity type region, a second conductivity type region, where the second conductivity type is different from the first conductivity type, an intrinsic region located between the first conductivity type region and the second conductivity type region; a first halo region of the first conductivity type located between the second conductivity type region and the intrinsic region, and optionally a second halo region of the second conductivity type located between the first conductivity type region and the intrinsic region.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: May 28, 2013
    Assignee: SanDisk 3D LLC
    Inventors: Xiying Chen, Mark H. Clark, S. Brad Herner, Tanmay Kumar
  • Patent number: 8445352
    Abstract: A problem in the conventional technique is that metal contamination on a silicon carbide surface is not sufficiently removed in a manufacturing method of a semiconductor device using a monocrystalline silicon carbide substrate. Accordingly, there is a high possibility that the initial characteristics of a manufactured silicon carbide semiconductor device are deteriorated and the yield rate is decreased. Further, it is conceivable that the metal contamination has an adverse affect even on the long-term reliability of a semiconductor device. In a manufacturing method of a semiconductor device using a monocrystalline silicon carbide substrate, there is applied a metal contamination removal process, on a silicon carbide surface, including a step of oxidizing the silicon carbide surface and a step of removing a film primarily including silicon dioxide formed on the silicon carbide surface by the step.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: May 21, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Natsuki Yokoyama, Tomoyuki Someya
  • Patent number: 8445342
    Abstract: A short channel semiconductor device is formed with halo regions that are separated from the bottom of the gate electrode and from each other. Embodiments include implanting halo regions after forming source/drain regions and source/drain extension regions. An embodiment includes forming source/drain extension regions in a substrate, forming source/drain regions in the substrate, forming halo regions under the source/drain extension regions, after forming the source drain regions, and forming a gate electrode on the substrate between the source/drain regions. By forming the halo regions after the high temperature processing involved informing the source/drain and source/drain extension regions, halo diffusion is minimized, thereby maintaining sufficient distance between halo regions and reducing short channel NMOS Vt roll-off.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 21, 2013
    Assignee: Globalfoundries Inc.
    Inventors: Bin Yang, Man Fai Ng
  • Patent number: 8441067
    Abstract: The power device with low parasitic transistor comprises a recessed transistor and a heavily doped region at a side of a source region of the recessed transistor. The conductive type of the heavily doped region is different from that of the source region. In addition, a contact plug contacts the heavily doped region and connects the heavily doped region electrically. A source wire covers and contacts the source region and the contact plug to make the source region and the heavily doped region have the same electrical potential.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 14, 2013
    Assignee: Sinopower Semiconductor Inc.
    Inventor: Wei-Chieh Lin
  • Patent number: 8440514
    Abstract: A method for manufacturing a semiconductor device is provided. A gate structure is formed on a substrate. A first dopant implantation and a first strain atom implantation are performed. Thereafter, spacers are formed on sidewalls of the gate structure. A second dopant implantation and a second strain atom implantation are performed. A solid-phase epitaxy annealing process is performed to form source and drain regions made of a semiconductor compound solid-phase epitaxial layer beside the gate structure.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 14, 2013
    Assignee: United Microelectronics Corp.
    Inventors: Po-Wei Liu, Cheng-Tzung Tsai, Wen-Tai Chiang
  • Patent number: 8426847
    Abstract: A light emitting device includes: a first electrode, a conductor film, an organic layer having a light emitting layer made of an organic light emitting material provided therein, a semi-transmissive reflective film, a resistive layer, and a second electrode, all of which are laminated successively, wherein the conductor film transmits a part of light from the light emitting layer therethrough, the first electrode reflects the light having been transmitted through the conductor film, the second electrode transmits the light having been transmitted through the semi-transmissive reflective film therethrough, an average film thickness of the conductor film on the first electrode is from 1 nm to 6 nm, and an average film thickness of the semi-transmissive reflective film on the organic layer is from 1 nm to 6 nm.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 23, 2013
    Assignee: Sony Corporation
    Inventors: Hirofumi Nakamura, Seong-Hee Noh, Jiro Yamada
  • Patent number: 8420461
    Abstract: To provide a manufacturing method for a field-effect transistor, such as a thin-film transistor, enabling reductions in the number patterning steps and the number of photomasks and improvements in the throughput and the yield. In the method, an oxide film is formed by processing the surface of a crystalline semiconductor with ozone water or hydrogen peroxide water. Using the oxide film thus formed as an etch stop, a gate electrode, a source electrode, and a drain electrode of the field-effect transistor are simultaneously formed from a same starting film in one patterning step by use of one photomask. After forming the gate electrode, the source electrode, and the drain electrode, heating is performed thereon at 800° C. or higher for a predetermined time. Thereby, the contact resistances between the source electrode and the crystalline semiconductor and between the drain electrode and the crystalline semiconductor are reduced, whereby improving the electrical conductivity.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 16, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Tatsuya Arao
  • Patent number: 8421243
    Abstract: A layered chip package includes a main body, and wiring disposed on a side surface of the main body. The main body includes: a main part including a plurality of layer portions stacked; a plurality of first terminals disposed on the top surface of the main part and connected to the wiring; and a plurality of second terminals disposed on the bottom surface of the main part and connected to the wiring. The plurality of layer portions include a first-type layer portion and a second-type layer portion. The first-type layer portion includes a conforming semiconductor chip, and a plurality of first-type electrodes that are connected to the semiconductor chip and the wiring. The second-type layer portion includes a defective semiconductor chip, and a plurality of second-type electrodes that are connected to the wiring and not to the semiconductor chip.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 16, 2013
    Assignees: Headway Technologies, Inc., SAE Magnetics (H.K.) Ltd.
    Inventors: Yoshitaka Sasaki, Hiroyuki Ito, Hiroshi Ikejima, Atsushi Iijima
  • Patent number: 8415710
    Abstract: A bipolar power semiconductor component configured as an IGBT includes a semiconductor body, in which a p-doped emitter, an n-doped base, a p-doped base and an n-doped main emitter are arranged successively in a vertical direction. The p-doped emitter has a number of heavily p-doped zones having a locally increased p-type doping.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: April 9, 2013
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Schulze, Franz-Josef Niedernostheide, Uwe Kellner-Werdehausen, Reiner Barthelmess
  • Patent number: 8409949
    Abstract: Provided is a nonvolatile semiconductor memory device highly integrated and highly reliable. A plurality of memory cells are formed in a plurality of active regions sectioned by a plurality of isolations (silicon oxide films) extending in the Y direction and deeper than a well (p type semiconductor region). In each memory cell, a contact is provided in the well (p type semiconductor region) so as to penetrate through a source diffusion layer (n+ type semiconductor region), and the contact that electrically connects bit lines (metal wirings) and the source diffusion layer (n+ type semiconductor region) is also electrically connected to the well (p type semiconductor region).
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 2, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Tsuyoshi Arigane, Digh Hisamoto, Yasuhiro Shimamoto, Toshiyuki Mine
  • Patent number: 8409952
    Abstract: A method of forming an electronic device including forming a first trench in a workpiece including a substrate, the first trench having side walls and a bottom surface extending for a width between the side walls and forming a charge-storage layer along the side walls and bottom surface of the first trench. The method further includes implanting ions within the substrate underlying the bottom surface of the first trench to form an implant region and annealing the implant region, wherein after annealing, the implant region extends the width of the bottom surface and along a portion of the side walls.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: April 2, 2013
    Assignee: Spansion LLC
    Inventors: Suketu Arun Parikh, Olov B. Karlsson, Yun Sun, Shankar Sinha, Timothy Thurgate
  • Patent number: 8404559
    Abstract: A semiconductor device production method according to the present invention includes the steps of: forming a LOCOS oxide film in a surface of a silicon layer by a LOCOS method; forming an impurity region in the silicon layer by introducing an impurity into the silicon layer; and sequentially removing parts of the LOCOS oxide film and the silicon layer to form a trench for isolation of the impurity region after the formation of the LOCOS oxide film and the impurity region.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: March 26, 2013
    Assignee: Rohm Co., Ltd.
    Inventor: Bungo Tanaka
  • Patent number: 8405178
    Abstract: In a solid-state image sensor device, the efficiency of light collection to a light-receiving region of a photodiode PD through a microlens is enhanced by arranging a wiring line configuration. Each of the first metal layer and the second metal layer is arranged to have a ring-like portion formed along a profile of the light-receiving region of the photodiode PD in a fashion that an upper position over the photodiode PD is surrounded by the first and second metal layers and a third metal layer.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: March 26, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Shinya Sugino, Satoshi Sakai, Yusuke Nonaka, Tomohiro Saito, Tomoyasu Furukawa, Hiroyuki Hayashi
  • Patent number: 8389355
    Abstract: In a semiconductor integrated circuit device and a method of formation thereof, a semiconductor device comprises: a semiconductor substrate; an insulator at a top portion of the substrate, defining an insulator region; a conductive layer pattern on the substrate, the conductive layer pattern being patterned from a common conductive layer, the conductive layer pattern including a first pattern portion on the insulator in the insulator region and a second pattern portion on the substrate in an active region of the substrate, wherein the second pattern portion comprises a gate of a transistor in the active region; and a capacitor on the insulator in the insulator region, the capacitor including: a lower electrode on the first pattern portion of the conductive layer pattern, a dielectric layer pattern on the lower electrode, and an upper electrode on the dielectric layer pattern.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: March 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Jun Won, Jung-Min Park
  • Patent number: 8384056
    Abstract: A phase change random access memory includes a semiconductor substrate, a switching device pattern formed on the semiconductor substrate, a bottom electrode contact pattern formed on the switching device pattern, a phase change layer pattern formed on the bottom electrode contact pattern, and an insulating layer disposed at a portion of an contact surface between the bottom electrode contact pattern and the phase change layer pattern.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 26, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Min Seok Kim, Hyo Seob Yoon
  • Patent number: 8367500
    Abstract: A method for providing self aligned contacts for a trench power MOSFET is disclosed. The method includes, etching trenches in a substrate through a mask of silicon nitride deposited on an oxide layer, forming a gate oxide layer on the walls of the trenches, applying polysilicon to fill the trenches and to cover the surface of the mask of silicon nitride, removing the polysilicon from the surface of the mask of silicon nitride and applying a photoresist mask to cover a location of a gate bus.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: February 5, 2013
    Assignee: Vishay-Siliconix
    Inventors: Robert Q. Xu, Jacek Korec