Patents by Inventor Xuchun Liu

Xuchun Liu 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).

  • Publication number: 20240105525
    Abstract: Test structures and methods of testing pixel driver chip donor wafers are described. In an embodiment, a redistribution layer is formed over a pixel driver chip donor wafer and probed to determine known good dies, followed by removal of the RDL. In other embodiments, test routing is formed in the pixel driver chip using a polycide material or doped region in the semiconductor wafer.
    Type: Application
    Filed: July 25, 2023
    Publication date: March 28, 2024
    Inventors: Imran Hashim, Xiang Lu, Stanley B. Wang, Xuchun Liu, Mahdi Farrokh Baroughi, Yongjie Jiang, Hopil Bae, Hasan Akyol, Baris Posat, John T. Wetherell, Lei Wu
  • Patent number: 7443572
    Abstract: A spatial light modulator includes a mirror plate comprising a reflective upper surface, a lower surface, and a cavity having an opening on the lower surface; a substrate comprising an upper surface, a hinge support post in connection with the upper surface, and a hinge component supported by the hinge support post and in connection with the mirror plate; and a landing tip having a laterally extended upper portion and a vertically extended lower portion in connection with the substrate and the vertically extended lower portion. The laterally extended upper portion can contact the lower surface of the mirror plate to limit the rotation of the mirror plate. The hinge component extends into the cavity and can facilitate a rotation of the mirror plate.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: October 28, 2008
    Assignee: Spatial Photonics, Inc.
    Inventors: Shaoher X. Pan, Vlad Novotny, Xuchun Liu