Patents by Inventor Pei-Ci CHO

Pei-Ci CHO 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).

  • Temporary bonding composition, temporary bonding film, composite film, temporary bonding method and semiconductor wafer package
    Patent number: 12043770
    Abstract: A temporary bonding composition is provided. The temporary bonding composition includes a polyfunctional crosslinker, a polymer and a solvent. The polyfunctional crosslinker includes a compound containing at least two functional groups selected from the group consisting of blocked isocyanate groups, alkenyl ether groups, and alkoxyhydrocarbyl groups. Each of the blocked isocyanate groups is an isocyanate group blocked by a blocking agent. The polymer has a functional group reacting with the polyfunctional crosslinker.
    Type: Grant
    Filed: December 29, 2019
    Date of Patent: July 23, 2024
    Assignee: Daxin Materials Corporation
    Inventors: Cheng-Wei Lee, Pei-Ci Cho, Chun-Hung Huang, Min-Chi Yang, Chi-Yen Lin, Yuan-Li Liao
  • TEMPORARY BONDING COMPOSITION, TEMPORARY BONDING FILM, COMPOSITE FILM, METHOD FOR TEMPORARY BONDING WORKPIECE AND SEMICONDUCTOR WAFER PACKAGING
    Publication number: 20210040365
    Abstract: A temporary bonding composition is provided. The temporary bonding composition includes a polyfunctional crosslinker, a polymer and a solvent. The polyfunctional crosslinker includes a compound containing at least two functional groups selected from the group of blocked isocyanate groups, alkenyl ether groups, and alkoxyhydrocarbyl groups. Each of the blocked isocyanate groups is an isocyanate group protected by a blocking agent. The polymer has a functional group reacting to the polyfunctional crosslinker.
    Type: Application
    Filed: December 29, 2019
    Publication date: February 11, 2021
    Inventors: Cheng-Wei LEE, Pei-Ci CHO, Chun-Hung HUANG, Min-Chi YANG, Chi-Yen LIN, Yuan-Li LIAO