Patents by Inventor Shun-Jen Chiang

Shun-Jen Chiang 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).

  • POLYIMIDE PRECURSOR, ITS COMPOSITION AND POLYIMIDE LAMINATE
    Publication number: 20100086792
    Abstract: A polyimide precursor and its composition as well as a polyimide laminate are provided. The polyimide precursor and its composition are prepared using a diamine monomer and a dianhydride monomer in a specific composition proportion. The composition is coated on a copper foil and then cured to provide a polyimide laminate with a desired Coefficient of Thermal Expansion (CTE) and exhibiting desired properties, such as film flatness, dimensional stability, peeling strength, tensile strength, and elongation.
    Type: Application
    Filed: May 7, 2009
    Publication date: April 8, 2010
    Applicant: ETERNAL CHEMICAL CO., LTD.
    Inventors: Shun-Jen Chiang, Chung-Jen Wu