Patents by Inventor Shyi-Yi Chen

Shyi-Yi Chen 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).

  • Lead frame material and process for manufacturing the same
    Patent number: 6203931
    Abstract: The present invention provides a lead frame material and a process for manufacturing a lead frame material. The process includes forming an intermediate layer on a lead frame substrate by vacuum deposition and forming a top protective layer on the intermediate layer by vacuum deposition. By using vacuum deposition, the coating material can be selected from a wider variety of materials; thus, coatings with novel compositions can be formed. The intermediate layer can be Ni, Ag, W, Zn, Cr, Mo, Cu, Sn, Al, Ta, Co, Nb, or alloys thereof, and the top protective layer can be Pt, Ir, Re, Ru, Rh, Pd, Au, Ag, or alloys thereof.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 20, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Chun-Hsun Chu, Shyi-Yi Chen, Jui-Fen Pai