Patents Examined by Ravindra B. Shukla
  • Patent number: 6440750
    Abstract: A method of manufacturing an integrated circuit and an integrated circuit employing the same. In one embodiment, the method of manufacturing the integrated circuit includes (1) conformally mapping a micromagnetic device, including a ferromagnetic core, to determine appropriate dimensions therefor, (2) depositing an adhesive over an insulator coupled to a substrate of the integrated circuit and (3) forming the ferromagnetic core of the appropriate dimensions over the adhesive.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: August 27, 2002
    Assignee: Agere Systems Guardian Corporation
    Inventors: Anatoly Feygenson, Dean P. Kossives, Ashraf W. Lotfi, Lynn F. Schneemeyer, Michael L. Steigerwald, R. Bruce Van Dover
  • Patent number: 6335220
    Abstract: In a high density solid-state imaging device, of four charge transfer electrodes formed on a semiconductor substrate via a gate insulating film, a first electrode, a fourth electrode, and a part of a second electrode are made of a first conductive film, and a third electrode and the remaining portion of the second electrode are made of a second conductive film. In the second electrode, the first conductive film is joined to the second conductive film. An oxidation film formed by thermally oxidizing the first conductive film isolates the first electrode from the second electrode, the second electrode from the third electrode, and the third electrode from the fourth electrode. The end of the second conductive film is formed so as to locate on the oxidation film on the first conductive film.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: January 1, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiyuki Shioyama, Hidenori Shibata
  • Patent number: 6306675
    Abstract: In semiconductor devices such as laser diodes (LD) and light emitting diodes (LED) based on gallium nitride thin films, low defect density is desired in the gallium nitride film. In the fabrication of such devices on a silicon carbide substrate surface, the gallium nitride film is formed on the silicon carbide substrate after the substrate surface is etched using hydrogen at an elevated temperature. In another embodiment, an aluminum nitride film is formed as a buffer layer between the gallium nitride film and the silicon carbide substrate, and, prior to aluminum nitride formation, the substrate surface is etched using hydrogen at an elevated temperature.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 23, 2001
    Assignee: Arizona Board of Regents Acting on behalf of Arizona State University
    Inventors: Ignatius S. T. Tsong, David J. Smith, Victor M. Torres, John L. Edwards, Jr., R. Bruce Doak
  • Patent number: 6303437
    Abstract: A non-volatile semiconductor device structure and method for low power applications comprises a trenched floating gate and corner dopings and further includes a well junction region with a source region and a drain region therein, and includes a channel region, an inter-gate dielectric layer, and a control gate. The trenched floating gate is formed in a trench etched into the semiconductor substrate and has a top surface which is substantially planar with a top surface of the semiconductor substrate. The source and drain regions are laterally separated by the trench in which the trenched floating gate is formed and have a depth which is approximately less than the depth of the trench. The channel region is formed beneath a bottom surface of the trench and is doped to form a depletion type channel region.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 16, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Yowjuang W. Liu