Patents Examined by Leonardo Andujor
  • Patent number: 6683380
    Abstract: An integrated circuit device (10) with a bonding surface (12) directly over its active circuitry, and a method of making such integrated circuits (FIGS. 2A-2E). To make the bonding surface (12), a wafer (20) is provided with vias (24) to its metallization layer (21) and then coated with a seed metal layer (25). A plating pattern (26) is formed on the wafer (20), exposing portions of the seed metal layer (25) and blocking the rest of the seed metal layer (25). These exposed portions are plated with successive metal layers (27, 28, 29), thereby forming a bonding surface (12) having a number of layered stacks (200) that fill the vias (24). The plating pattern and the nonplated portions of the seed metal layer (25) are then removed.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: January 27, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Taylor R. Efland, Donald C. Abbott, Walter Bucksch, Marco Corsi, Chi-Cheong Shen, John P. Erdeljac, Louis N. Hutter, Quang X. Mai, Konrad Wagensohner, Charles E. Williams, Milton L. Buschbom
  • Patent number: 6498380
    Abstract: On a glass sheet, undercoating layers and a transparent conductive film containing tin oxide as the main component are formed in this order. The surface of the transparent conductive film is provided with roughness including convex portions and concave portions. The convex portions have a mean diameter in a range between 0.05 &mgr;m and 0.3 &mgr;m and include five convex portions or less with diameters of at least 0.5 &mgr;m per 100 &mgr;m2 of the surface. On the transparent conductive film, a photovoltaic unit and a back electrode are formed, thus obtaining a photoelectric conversion device.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: December 24, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsuyoshi Otani, Yukio Sueyoshi, Akira Fujisawa, Masahiro Hirata, Akihiko Hattori
  • Patent number: 6313484
    Abstract: A circuit-integrated light-receiving device of the present invention includes: a semiconductor substrate of a first conductivity type; a first semiconductor crystal growth layer of the first conductivity type provided on a surface of the semiconductor substrate, wherein the first semiconductor crystal growth layer includes a first portion whose impurity concentration gradually decreases in a direction away from the surface of the semiconductor substrate and a second portion located in a first region above the first portion whose impurity concentration distribution is uniform in a depth direction; a buried diffusion layer of the first conductivity type located in a second region which is above the first portion of the first semiconductor crystal growth layer and does not overlap the first region; a second semiconductor crystal growth layer of a second conductivity type which is provided across a surface of the first semiconductor crystal growth layer and a surface of the buried diffusion layer; and a separatio
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: November 6, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Isamu Ohkubo, Masaru Kubo, Naoki Fukunaga, Takahiro Takimoto, Mutsumi Oka, Toshimitsu Kasamatsu