Patents by Inventor Wenkai PAN

Wenkai PAN 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).

  • Methods and systems for spot beam crystallization
    Patent number: 11942321
    Abstract: Methods and systems for crystallizing a thin film provide a laser beam spot that is continually advanced across tire thin film to create a sustained complete or partial molten zone that is translated across the thin film, and crystallizes to form uniform, small-grained crystalline structures or grains.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: March 26, 2024
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN CITY OF NEW YORK
    Inventors: James S. Im, Wenkai Pan
  • METHODS AND SYSTEMS FOR SPOT BEAM CRYSTALLIZATION
    Publication number: 20220359198
    Abstract: Methods and systems for crystallizing a thin film provide a laser beam spot that is continually advanced across tire thin film to create a sustained complete or partial molten zone that is translated across the thin film, and crystallizes to form uniform, small-grained crystalline structures or grains.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 10, 2022
    Inventors: James S. IM, Wenkai PAN
  • Methods and systems for spot beam crystallization
    Patent number: 11437236
    Abstract: Methods and systems for crystallizing a thin film provide a laser beam spot that is continually advanced across the thin film to create a sustained complete or partial molten zone that is translated across the thin film, and crystallizes to form uniform, small-grained crystalline structures or grains.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: September 6, 2022
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THF CITY OF NEW YORK
    Inventors: James S. Im, Wenkai Pan
  • SYSTEMS AND METHODS FOR SPOT BEAM AND LINE BEAM CRYSTALLIZATION
    Publication number: 20200238441
    Abstract: Method and systems for crystallizing a thin film provide an optics system configured to produce a laser spot beam directed towards the thin film and truncate the laser spot beam before the laser spot beam comes into contact with the thin film. The truncated laser spot beam is continually translated in a first direction while irradiating an amorphous silicon area of the thin film to generate a molten zone in the irradiated amorphous silicon area, where the thin film cools and solidifies to form crystal grains.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 30, 2020
    Inventors: James S. IM, Wenkai PAN, Ruobing SONG, Insung CHOI, Vernon WONG
  • METHODS AND SYSTEMS FOR SPOT BEAM CRYSTALLIZATION
    Publication number: 20190027363
    Abstract: Methods and systems for crystallizing a thin film provide a laser beam spot that is continually advanced across the thin film to create a sustained complete or partial molten zone that is translated across the thin film, and crystallizes to form uniform, small-grained crystalline structures or grains.
    Type: Application
    Filed: January 9, 2017
    Publication date: January 24, 2019
    Inventors: James S. IM, Wenkai PAN