Patents Examined by Lynne A. Gurley
  • Patent number: 8916849
    Abstract: An optoelectronic semiconductor chip, the latter includes a carrier and a semiconductor layer sequence grown on the carrier. The semiconductor layer sequence is based on a nitride-compound semiconductor material and contains at least one active zone for generating electromagnetic radiation and at least one waveguide layer, which indirectly or directly adjoins the active zone. A waveguide being formed. In addition, the semiconductor layer sequence includes a p-cladding layer adjoining the waveguide layer on a p-doped side and/or an n-cladding layer on an n-doped side of the active zone. The waveguide layer indirectly or directly adjoins the cladding layer. An effective refractive index of a mode guided in the waveguide is in this case greater than a refractive index of the carrier.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: December 23, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Christoph Eichler, Teresa Lermer, Adrian Stefan Avramescu
  • Patent number: 8916885
    Abstract: The present invention introduces the novel, improved design approach of the semiconductor devices that utilize the effect of carrier recombination, for example, to produce the electromagnetic radiation. The approach is based on the separate control over the injection of the electrons and holes into the active region of the device. As a result, better recombination efficiencies can be achieved, and the effect of the wavelength shift of the produced radiation can be eliminated. The devices according to the present invention outperform existing solid state light and electromagnetic radiation sources and can be used in any applications where solid state light sources are currently involved, as well as any applications future discovered.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: December 23, 2014
    Inventors: Alexei Koudymov, Christian Martin Wetzel
  • Patent number: 8916945
    Abstract: Prepared is an n? type semiconductor substrate 1 having a first principal surface 1a and a second principal surface 1b opposed to each other, and having a p+ type semiconductor region 3 formed on the first principal surface 1a side. At least a region opposed to the p+ type semiconductor region 3 in the second principal surface 1b of the n? type semiconductor substrate 1 is irradiated with a pulsed laser beam to form an irregular asperity 10. After formation of the irregular asperity 10, an accumulation layer 11 with an impurity concentration higher than that of the n? type semiconductor substrate 1 is formed on the second principal surface 1b side of the n type semiconductor substrate 1. After formation of the accumulation layer 11, the n? type semiconductor substrate 1 is subjected to a thermal treatment.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: December 23, 2014
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Akira Sakamoto, Takashi Iida, Koei Yamamoto, Kazuhisa Yamamura, Terumasa Nagano
  • Patent number: 8884384
    Abstract: A semiconductor element of the electric circuit includes a semiconductor layer over a gate electrode. The semiconductor layer of the semiconductor element is formed of a layer including polycrystalline silicon which is obtained by crystallizing amorphous silicon by heat treatment or laser irradiation, over a substrate. The obtained layer including polycrystalline silicon is also used for a structure layer such as a movable electrode of a structure body. Therefore, the structure body and the electric circuit for controlling the structure body can be formed over one substrate. As a result, a micromachine can be miniaturized. Further, assembly and packaging are unnecessary, so that manufacturing cost can be reduced.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mayumi Yamaguchi, Konami Izumi
  • Patent number: 8883526
    Abstract: An image pickup device, wherein a part of the carriers overflowing from the photoelectric conversion unit for a period of photoelectrically generating and accumulating the carriers may be flowed into the floating diffusion region, and a pixel signal generating unit generating a pixel signal according to the carriers stored in the photoelectric conversion unit and the carriers having overflowed into the floating diffusion region, is provided. The expansion of a dynamic range and the improvement of an image quality can be provided by controlling a ratio of the carriers flowing into the floating diffusion region to the carriers overflowing from such a photoelectric conversion unit at high accuracy.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: November 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Okita, Toru Koizumi, Isamu Ueno, Katsuhito Sakurai
  • Patent number: 8861739
    Abstract: An apparatus comprises a processor configured to receive a first audio signal and first location data, the first location data relating to a location of a source of the first audio signal; receive a second audio signal and second location data, the second location data relating to a location of a source of the second audio signal; receive selected location data relating to a selected location; and generate a multichannel signal in dependence on the first and second audio signals, the first and second location data and the selected location data.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 14, 2014
    Assignee: Nokia Corporation
    Inventor: Juha P. Ojanpera
  • Patent number: 8853745
    Abstract: A semiconductor structure, comprising: a substrate; a seed layer over an upper surface of the substrate; a semiconductor layer disposed over the seed layer; a transistor device in the semiconductor layer; wherein the substrate has an aperture therein, such aperture extending from a bottom surface of the substrate and terminating on a bottom surface of the seed layer; and an opto-electric structure disposed on the bottom surface of the seed layer.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: October 7, 2014
    Assignee: Raytheon Company
    Inventors: Kamal Tabatabaie, Jeffrey R. LaRoche, Valery S. Kaper, John P. Bettencourt, Kelly P. Ip
  • Patent number: 8847365
    Abstract: Inductors and methods for integrated circuits that result in inductors of a size compatible with integrated circuits, allowing the fabrication of inductors, with or without additional circuitry on a first wafer and the bonding of that wafer to a second wafer without wasting of wafer area. The inductors in the first wafer are comprised of coils formed by conductors at each surface of the first wafer coupled to conductors in holes passing through the first wafer. Various embodiments are disclosed.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Joseph P. Ellul, Khanh Tran, Edward Martin Godshalk, Albert Bergemont
  • Patent number: 8835942
    Abstract: An LED module includes at least two LED package units and at least one connecting unit. Each LED package unit includes at least one first engaging portion, at least one first conductive portion, and at least one LED chip connected electrically to the first engaging portion. The connecting unit includes at least two second engaging portions, and at least one second conductive portion having two opposite end sections extending respectively to the second engaging portions. When the second engaging portions of the connecting unit engaged with the first engaging portions of the LED package units, respectively, the end sections of the second conductive portion contact electrically and respectively the corresponding first conductive portions so as to connect electrically the LED chips of the LED package units.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 16, 2014
    Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corp.
    Inventors: Chen-Yu Chen, Yu-Kang Lu, Yan-Yu Wang
  • Patent number: 8829534
    Abstract: Provided is a power semiconductor device including: a power semiconductor element; a metal block as a first metal block that is connected to the power semiconductor element through an upper surface electrode pattern as a first upper surface electrode pattern selectively formed on an upper surface of the power semiconductor element; and a mold resin filled so as to cover the power semiconductor element and the metal block, wherein an upper surface of the metal block is exposed from a surface of the mold resin.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 9, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Masao Kikuchi
  • Patent number: 8829634
    Abstract: The invention is an optoelectronic device comprising an active portion which converts light to electricity or converts electricity to light, the active portion having a front side for the transmittal of the light and a back side opposite from the front side, at least two electrical leads to the active portion to convey electricity to or from the active portion, an enclosure surrounding the active portion and through which the at least two electrical leads pass wherein the hermetically sealed enclosure comprises at the front side of the active portion a barrier material which allows for transmittal of light, one or more getter materials disposed so as to not impede the transmission of light to or from the active portion, and a contiguous gap pathway to the getter material which pathway is disposed between the active portion and the barrier material.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: September 9, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Jeffrey E. Bonekamp, Michelle L. Boven, Ryan S. Gaston
  • 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: 8829593
    Abstract: A first select transistor is formed on a semiconductor substrate. Memory cell transistors are stacked on the first select transistor and connected in series. A second select transistor is formed on the memory cell transistors. The memory cell transistors include a tapered semiconductor pillar which increases in diameter from the first select transistor toward the second select transistor, a tunnel dielectric film formed on the side surface of the semiconductor pillar, a charge storage layer which is formed on the side surface of the tunnel dielectric film and which increases in charge trap density from the first select transistor side toward the second select transistor side, a block dielectric film formed on the side surface of the charge storage layer, and conductor films which are formed on the side surface of the block dielectric film and which serve as gate electrodes.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: September 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsuyuki Sekine, Kensuke Takano, Masaaki Higuchi, Tetsuya Kai, Yoshio Ozawa
  • 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: 8803131
    Abstract: An integrated circuit includes a graphene layer, the graphene layer comprising a region of undoped graphene, the undoped graphene comprising a channel of a transistor, and a region of doped graphene, the doped graphene comprising a contact of the transistor; and a gate of the transistor, the gate comprising a carbon nanotube film. A method of fabricating an integrated circuit comprising graphene and carbon nanotubes, includes forming a graphene layer; doping a portion of the graphene layer, resulting in doped graphene and undoped graphene; forming a carbon nanotube film; and etching the carbon nanotube film to form a gate of a transistor, wherein the transistor further comprises a channel comprising the undoped graphene and a contact comprising the doped graphene. A transistor includes a gate, the gate comprising a carbon nanotube film; a channel, the channel comprising undoped graphene; and a contact, the contact comprising doped graphene.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Yu-Ming Lin, Jeng-Bang Yau
  • Patent number: 8803257
    Abstract: A hollow part is formed in a silicon substrate through the front and the back. A vibration electrode plate is arranged on an upper surface of the silicon substrate to cover the opening on the upper surface. A fixed electrode plate covers the upper side of the vibration electrode plate while maintaining a microscopic gap with the vibration electrode plate, where the peripheral part is fixed to the upper surface of the silicon substrate. The fixed electrode plate has the portion facing the upper surface of the silicon substrate through a space supported by a side wall portion arranged on an inner edge of the portion fixed to the upper surface of the silicon substrate without interposing a space. The outer surface of the side wall portion of the fixed electrode plate is covered by a reinforcement film made of metal such as Au, Cr, and Pt.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 12, 2014
    Assignee: OMRON Corporation
    Inventors: Takashi Kasai, Nobuyuki Iida, Hidetoshi Nishio
  • Patent number: 8796668
    Abstract: An integrated circuit includes a graphene layer, the graphene layer comprising a region of undoped graphene, the undoped graphene comprising a channel of a transistor, and a region of doped graphene, the doped graphene comprising a contact of the transistor; and a gate of the transistor, the gate comprising a carbon nanotube film. A method of fabricating an integrated circuit comprising graphene and carbon nanotubes, includes forming a graphene layer; doping a portion of the graphene layer, resulting in doped graphene and undoped graphene; forming a carbon nanotube film; and etching the carbon nanotube film to form a gate of a transistor, wherein the transistor further comprises a channel comprising the undoped graphene and a contact comprising the doped graphene. A transistor includes a gate, the gate comprising a carbon nanotube film; a channel, the channel comprising undoped graphene; and a contact, the contact comprising doped graphene.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventors: Yu-Ming Lin, Jeng-Bang Yau
  • Patent number: 8766145
    Abstract: To improve jump characteristic of BaTiO3—(Bi1/2Na1/2)TiO3 material. There is provided a process for producing a semiconductive porcelain composition in which a part of Ba is substituted with Bi—Na, the process including a step of preparing a (BaQ)TiO3 calcined powder (in which Q is a semiconductor dopant), a step of preparing a (BiNa)TiO3 calcined powder, a step of mixing the (BaQ)TiO3 calcined powder and the (BiNa)TiO3 calcined powder, a step of molding and sintering the mixed calcined powder, and a step of heat-treating the obtained sintered body at 600° C. or lower; and a PCT heater employing the element prepared by the above steps.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: July 1, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takeshi Shimada, Kentaro Ino, Toshiki Kida
  • Patent number: 8759929
    Abstract: A solid-state imaging device includes: a substrate including a plurality of light receiving sections; and a color filter including a guided-mode resonant grating provided immediately above each of the plurality of light receiving sections, at least one of an upper surface and a lower surface of the guided-mode resonant grating being covered with a layer having a lower refractive index than the guided-mode resonant grating.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: June 24, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazufumi Shiozawa, Yusaku Konno, Naotada Okada
  • Patent number: 8749006
    Abstract: An improved image sensor, e.g., CCD, CID, CMOS. The image sensor includes a substrate, e.g., silicon wafer. The sensor also includes a plurality of photo diode regions, where each of the photo diode regions is spatially disposed on the substrate. The sensor has an interlayer dielectric layer overlying the plurality of photo diode regions and a shielding layer formed overlying the interlayer dielectric layer. A silicon dioxide bearing material is overlying the shielding layer. A plurality of lens structures are formed on the silicon dioxide bearing material. The sensor also has a color filter layer overlying the lens structures and a plurality of second lens structures overlying the color filter layer according to a preferred embodiment.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: June 10, 2014
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
    Inventors: Herb Huang, Mieno Fumitake