Patents by Inventor Jou-Yuan Tseng

Jou-Yuan Tseng 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).

  • Printed circuit board micro hole processing method
    Patent number: 6638438
    Abstract: A PC board micro hole processing method using plasma technique to etch the substrate of the PC board, and then using chemical etching technique to remove residual material such as glass fibers.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: October 28, 2003
    Assignee: Ulisatera Corporation
    Inventors: Ching-Hua Tsao, Jou-Yuan Tseng, Kang-Tsun Liu
  • Printed circuit board micro hole processing method
    Publication number: 20030071013
    Abstract: A PC board micro hole processing method using plasma technique to etch the substrate of the PC board, and then using chemical etching technique to remove residual material such as glass fibers.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Applicant: S & S TECHNOLOGY CORPORATION
    Inventors: Ching-Hua Tsao, Jou-Yuan Tseng, Kang-Tsun Liu