Patents Examined by Khanh Duong
  • Patent number: 9252268
    Abstract: The present invention provides a display device and a dual gate type thin film transistor (TFT) structure for an electronic device. According to an embodiment, the dual gate TFT structure includes a first gate electrode formed on a substrate; a semiconductor layer formed on the first gate electrode; an insulating layer formed on the semiconductor layer, and including first, second and third contact holes therein; drain and source electrodes in contact with the semiconductor layer respectively through the first and second contact holes; a passivation layer formed on the drain electrode and the source electrode, and including a fourth contact hole therein; a planarization layer formed on the passivation layer, and including a fifth contact hole therein; and a second gate electrode formed on the planarization layer, and in electrical contact with the first gate electrode through the third, fourth and fifth contact holes.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: February 2, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong-Hwan Kim, Ki-Sul Cho
  • Patent number: 9123642
    Abstract: A device including both drain extended metal-on-semiconductor (DE_MOS) and low-voltage metal-on-semiconductor (LV_MOS) transistors and methods of manufacturing the same are provided. In one embodiment, the method includes implanting ions of a first-type at a first energy level in a drain portion of a first DE_MOS transistor in a DE_MOS region of a substrate to form the first DE_MOS transistor, and implanting ions of the first-type at a second energy level in a LV_MOS region of the substrate adjust a voltage threshold of a first LV_MOS transistor, while concurrently implanting ions of the first-type at the second energy level in the drain portion of the first DE_MOS transistor to form a drain extension of the first DE_MOS transistor. Other embodiments are also provided.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 1, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sungkwon Lee, Igor Kouznetsov, Gyu-Chul Kim
  • Patent number: 9105691
    Abstract: A method of forming a semiconductor-on-insulator (SOI) device includes defining a shallow trench isolation (STI) structure in an SOI substrate, the SOI substrate including a bulk layer, a buried insulator (BOX) layer over the bulk layer, and an SOI layer over the BOX layer; forming a doped region in a portion of the bulk layer corresponding to a lower location of the STI structure, the doped region extending laterally into the bulk layer beneath the BOX layer; selectively etching the doped region of the bulk layer with respect to undoped regions of the bulk layer such that the lower location of the STI structure undercuts the BOX layer; and filling the STI structure with an insulator fill material.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: August 11, 2015
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Laurent Grenouillet, Ali Khakifirooz, Yannick C. Le Tiec, Qing Liu, Maud Vinet
  • Patent number: 9093598
    Abstract: A method is provided for the simultaneous diffusion of dopants of different types on respective sides of a solar cell wafer in a single stage process. The dopants are applied to respective sides of the wafer in wet chemical form preferably by pad printing. The doping materials can be applied to the entire wafer surface or effective area thereof, or can be applied in a pattern to suit the intended solar cell configuration. In a typical embodiment, the dopants are boron and phosphorus.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: July 28, 2015
    Assignee: BTU International, Inc.
    Inventors: Paul J. Richter, Frank Bottari
  • Patent number: 9076719
    Abstract: Disclosed herein is a method for doping a substrate, comprising disposing a coating of a composition comprising a dopant-containing polymer and a non-polar solvent on a substrate; and annealing the substrate at a temperature of 750 to 1300° C. for 1 second to 24 hours to diffuse the dopant into the substrate; wherein the dopant-containing polymer is a polymer having a covalently bound dopant atom; wherein the dopant-containing polymer is free of nitrogen and silicon; and wherein the method is free of a step of forming an oxide capping layer over the coating prior to the annealing step.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: July 7, 2015
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, ROHM AND HAAS ELECTRONICS MATERIALS LLC
    Inventors: Rachel A. Segalman, Megan L. Hoarfrost, Ali Javey, Kuniharu Takei, Peter Trefonas, III
  • Patent number: 9054245
    Abstract: Methods for doping an absorbent layer of a p-n heterojunction in a thin film photovoltaic device are provided. The method can include depositing a window layer on a transparent substrate, where the window layer includes at least one dopant (e.g., copper). A p-n heterojunction can be formed on the window layer, with the p-n heterojunction including a photovoltaic material (e.g., cadmium telluride) in an absorber layer. The dopant can then be diffused from the window layer into the absorber layer (e.g., via annealing).
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: June 9, 2015
    Assignee: First Solar, Inc.
    Inventors: Scott Daniel Feldman-Peabody, Robert Dwayne Gossman
  • Patent number: 9012336
    Abstract: Disclosed are apparatus and methods for processing a substrate. The substrate having a feature with a layer thereon is exposed to an inductively coupled plasma which forms a substantially conformal layer.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 21, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Heng Pan, Matthew Scott Rogers, Johanes F. Swenberg, Christopher S. Olsen, Wei Liu, David Chu, Malcom J. Bevan
  • Patent number: 8987148
    Abstract: With a stage kept in an as-heated state, a semiconductor wafer is placed over the stage. Then, with the elapse of a first time, a controller causes a pressure inside a vacuum chamber to rise to a second pressure higher than a first pressure (step S40). After the semiconductor wafer is placed over the stage, a pressure difference between a pressure inside the vacuum chamber and a pressure inside an adsorption port is set to a minimum value at which the semiconductor wafer is not allowed to slide over protrusions. Further, in step S40 as well, the pressure difference is kept at the minimum value at which the semiconductor wafer is not allowed to slide over the protrusions.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Misato Sakamoto, Yoshitake Katou, Youichi Yamamoto, Takashi Kyouno, Chikara Yamamoto, Terukazu Motosawa, Mitsuo Maeda, Hiroshi Itou
  • Patent number: 8980679
    Abstract: Provided are apparatus and methods for forming phase change layers, and methods of manufacturing a phase change memory device. A source material is supplied to a reaction chamber, and purges from the chamber. A pressure of the chamber is varied according to the supply of the source material and the purge of the source material.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: March 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hyun Im, Byoungjae Bae, Dohyung Kim, Sunglae Cho, Jinil Lee, Juhyung Seo, Hyeyoung Park, Takehiko Fujita
  • Patent number: 8951814
    Abstract: A device and method for providing access to a signal of a flip chip semiconductor die. A hole is bored into a semiconductor die to a test probe point. The hole is backfilled with a conductive material, electrically coupling the test probe point to a signal redistribution layer. A conductive bump of the signal redistribution layer is electrically coupled to a conductive contact of a package substrate. An external access point of the package substrate is electrically coupled to the conductive contact, such that signals of the flip chip semiconductor die are accessible for measurement at the external access point.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: February 10, 2015
    Assignee: NVIDIA Corporation
    Inventors: Brian S. Schieck, Howard Lee Marks
  • Patent number: 8941219
    Abstract: An integrated circuit package system includes: interconnection pads; a first device mounted below the interconnection pads; a bond wire, or a solder ball connecting the first device to the interconnection pads; a lead connected to the interconnection pad or to the first device; an encapsulation having a top surface encapsulating the first device; and a recess in the top surface of the encapsulation with the interconnection pads exposed therefrom.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: January 27, 2015
    Assignee: STATS ChipPAC Ltd.
    Inventors: Zigmund Ramirez Camacho, Henry Descalzo Bathan, Lionel Chien Hui Tay, Jairus Legaspi Pisigan
  • Patent number: 8906706
    Abstract: A method of fabricating workpieces includes one or more layers on a substrate that are masked with an ion implantation mask comprising two or more layers. The mask layers include a first mask layer closer to the substrate, and a second mask layer on the first mask layer. The method also comprises ion implanting one or more of the layers on the substrate. Ion implantation may form portions with altered physical properties from the layers under the mask. The portions may form a plurality of non-magnetic regions corresponding to apertures in the mask.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: December 9, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Kanaiyalal C. Patel, Kurt A. Rubin
  • Patent number: 8895340
    Abstract: A process for forming a carbon nanotube field effect transistor (CNTFET) device includes site-specific nanoparticle deposition on a CNTFET that has one or more carbon nanotubes, a source electrode, a drain electrode, and a sacrificial electrode on a substrate with an interposed dielectric layer. The process includes control of PMMA removal and electrodeposition in order to select nanoparticle size and deposition location down to singular nanoparticle deposition. The CNTFET device resulting in ultra-sensitivity for various bio-sensing applications, including detection of glucose at hypoglycemic levels.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: November 25, 2014
    Assignee: Georgetown University
    Inventors: Makarand Paranjape, Yian Liu
  • Patent number: 8878259
    Abstract: Segmented semiconductor nanowires are manufactured by removal of material from a layered structure of two or more semiconductor materials in the absence of a template. The removal takes place at some locations on the surface of the layered structure and continues preferentially along the direction of a crystallographic axis, such that nanowires with a segmented structure remain at locations where little or no removal occurs. The interface between different segments can be perpendicular to or at angle with the longitudinal direction of the nanowire.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: Harold J. Hovel, Qiang Huang, Xiaoyan Shao, James Vichiconti, George F. Walker
  • Patent number: 8877605
    Abstract: A method of etching a silicon substrate includes providing a silicon substrate including a first surface and a second surface. A plurality of grooves spaced apart from each other are etched from the first surface of the silicon substrate. A dielectric material is deposited on the first surface of the silicon substrate and into the plurality of grooves. A hole through the silicon substrate is etched from the second surface of the substrate to the dielectric material. A portion of the hole is located between the plurality of grooves.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 4, 2014
    Assignee: Eastman Kodak Company
    Inventors: Yonglin Xie, Carolyn R. Ellinger, Mark D. Evans, Joseph Jech, Jr.
  • Patent number: 8878175
    Abstract: An object is to reduce a capacitance value of parasitic capacitance without decreasing driving capability of a transistor in a semiconductor device such as an active matrix display device. Further, another object is to provide a semiconductor device in which the capacitance value of the parasitic capacitance was reduced, at low cost. An insulating layer other than a gate insulating layer is provided between a wiring which is formed of the same material layer as a gate electrode of the transistor and a wiring which is formed of the same material layer as a source electrode or a drain electrode.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: November 4, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 8871592
    Abstract: A method of manufacturing a semiconductor device including a transistor. The method includes forming a channel region by implanting impurity ions of a second conductive type into an element forming region that is formed on one side of a substrate and is partitioned by an element isolation insulating film, forming a trench in said channel region formed on said one side of said substrate, covering side faces and a bottom face of said trench with a gate insulating film by forming said gate insulating film on said one side of said substrate, forming a gate electrode so as to bury an inside of said trench, patterning said gate electrode in a predetermined shape; and forming a source region and a drain region by implanting impurity ions of a first conductive type on both sides of said channel region.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 28, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Takehiro Ueda, Hiroshi Kawaguchi
  • Patent number: 8871615
    Abstract: According to one embodiment, a method includes forming a first SiGe layer having a first profile of a concentration of Ge on a semiconductor substrate, forming a second SiGe layer having a second profile of a concentration of Ge on the first SiGe layer, the second profile lower than a first peak of the first profile, forming a mask layer on the second SiGe layer, etching the first and second SiGe layers by anisotropic etching using the mask layer as a mask to form trenches, selectively removing the first SiGe layer exposed into the trenches to form a cavity under the second SiGe layer, and oxidizing side and lower surfaces of the second SiGe layer exposed in the trenches and the cavity to increase the concentration of Ge in the second SiGe layer.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shinji Mori
  • Patent number: 8865564
    Abstract: A process is provided for producing at least one interconnecting well to achieve a conductive pathway between at least two connection layers of a component comprising a stack of at least one first substrate and one second substrate which are electrically insulated from one another, the process including defining a surface contact region of a surface connection layer over a surface of the stack and of at least one first contact region embedded in the stack starting from a first embedded connection layer of the first substrate. A region devoid of material is positioned between the first substrate and second substrates and which comprises a stage of producing a interconnecting well which passes through the second substrate and extends between the surface contact region and the first embedded contact region and passes through the region devoid of material, and also a first layer which covers the first embedded connection layer.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: October 21, 2014
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Audrey Berthelot, Jean-Philippe Polizzi
  • Patent number: 8866193
    Abstract: According to one disclosed embodiment, a monolithic vertically integrated composite device comprises a double sided semiconductor substrate having first and second sides, a group IV semiconductor layer formed over the first side and comprising at least one group IV semiconductor device, and a group III-V semiconductor body formed over the second side and comprising at least one group III-V semiconductor device electrically coupled to the at least one group IV semiconductor device. The composite device may further comprise a substrate via and/or a through-wafer via providing electric coupling. In one embodiment, the group IV semiconductor layer may comprise an epitaxial silicon layer, and the at least one group IV semiconductor device may be a combined FET and Schottky diode (FETKY) fabricated on the epitaxial silicon layer. In one embodiment, the at least one group semiconductor device may be a III-nitride high electron mobility transistor (HEMT).
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: October 21, 2014
    Assignee: International Rectifier Corporation
    Inventor: Michael A. Briere