Patents by Inventor Lap-Tal Andrew Cheng

Lap-Tal Andrew Cheng 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).

  • PATTERNING A THICK FILM PASTE IN SURFACE FEATURES
    Publication number: 20100314989
    Abstract: This invention relates to a method for the fabrication of electrical and electronic devices using a photoresist deposited in pre-existing through holes in a device structure and a thick film paste, and to the devices made by such method. The method allows thick film paste deposits in the corners of the holes. This invention also relates to devices made with thick film pastes that are patterned using a diffusion layer made from residual photoresist deposits in a hole.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 16, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Lap-Tal Andrew Cheng