Patents by Inventor Ta-Hsin Kuan

Ta-Hsin Kuan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wet etching apparatus
    Patent number: 7156948
    Abstract: A wet etching apparatus is disclosed. The apparatus comprises a first tank, containing a first wet etching solution; a filter, having a filter cartridge, connected to the first tank to filter out the impurities in the first solution; a second etching tank, connected to the filter and the first tank in parallel, containing a second solution; a reaction tank, connected to the filter, wherein having a wet etching reaction; an exhaust component, connected to the filter and the reaction tank in parallel; a first pump, delivering the first solution to the reaction tank through the filter; and a second pump, delivering the second solution to the exhaust component to exhaust the solution from the etching tank through the filter.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: January 2, 2007
    Assignee: TPO Displays Corp.
    Inventors: Chi-An Lin, Kuo-Hung Kuo, Ta-Hsin Kuan, Po-Yi Lo, Ming-Hsien Yang
  • Wet etching apparatus
    Publication number: 20040238120
    Abstract: A wet etching apparatus is disclosed. The apparatus comprises a first tank, containing a first wet etching solution; a filter, having a filter cartridge, connected to the first tank to filter out the impurities in the first solution; a second etching tank, connected to the filter and the first tank in parallel, containing a second solution; a reaction tank, connected to the filter, wherein having a wet etching reaction; an exhaust component, connected to the filter and the reaction tank in parallel; a first pump, delivering the first solution to the reaction tank through the filter; and a second pump, delivering the second solution to the exhaust component to exhaust the solution from the etching tank through the filter.
    Type: Application
    Filed: December 17, 2003
    Publication date: December 2, 2004
    Inventors: Chi-An Lin, Kuo-Hung Kuo, Ta-Hsin Kuan, Po-Yi Lo, Ming-Hsien Yang