Patents Assigned to St Liquid Crystal Display Corporation
  • Etching method and etching liquid
    Patent number: 6806206
    Abstract: A silver or silver alloy thin layer on a substrate is etched by an etching liquid uniformly without producing an etching residue while avoiding side etching due to over etching. The etching liquid contains silver ions in a range from 0.005 to 1 weight %. The etching liquid is fed to a tank or an etching liquid feeding apparatus, and then brought into contact with the silver or silver alloy thin layer on the substrate.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: October 19, 2004
    Assignees: Sony Corporation, St Liquid Crystal Display Corporation, Mitsubishi Chemical Corporation
    Inventors: Masaki Munakata, Hirohito Komatsu, Satoshi Kumon, Kazuma Teramoto, Nobuhiro Goda, Masakazu Motoi, Noriyuki Saitou, Toshiaki Sakakihara, Makoto Ishikawa
  • Etching method and etching liquid
    Publication number: 20030022518
    Abstract: A silver or silver alloy thin layer on a substrate is etched by an etching liquid uniformly without producing an etching residue while avoiding side etching due to over etching. The etching liquid contains silver ions in a range from 0.005 to 1 weight %. The etching liquid is fed to a tank or an etching liquid feeding apparatus, and then brought into contact with the silver or silver alloy thin layer on the substrate.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 30, 2003
    Applicant: SONY CORPORATION; ST LIQUID CRYSTAL DISPLAY CORPORATION; and MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masaki Munakata, Hirohito Komatsu, Satoshi Kumon, Kazuma Teramoto, Nobuhiro Goda, Masakazu Motoi, Noriyuki Saitou, Toshiaki Sakakihara, Makoto Ishikawa