Patents by Inventor Zhengwen O. Li

Zhengwen O. Li 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).

  • Electrically contactable grids manufacture
    Patent number: 8574950
    Abstract: A method for manufacturing one or more electrically contactable grids on at least one surface of a semiconductor substrate for use in a solar cell product includes the following. A heat-sensitive masking agent layer is deposited on the surface of the substrate of the solar cell product. The masking agent layer is locally heated to form a grid mask. Selected parts of the masking agent layer defined by locally heating are removed to form openings in the grid mask. A contact metallization is applied on the grid mask.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: November 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Lawrence A. Clevenger, Rainer K. Krause, Zhengwen O. Li, Kevin S. Petrarca, Roger A. Quon, Carl Radens, Brian C. Sapp
  • Electrically contactable grids manufacture
    Publication number: 20110100453
    Abstract: A method for manufacturing one or more electrically contactable grids on at least one surface of a semiconductor substrate for use in a solar cell product includes the following. A heat-sensitive masking agent layer is deposited on the surface of the substrate of the solar cell product. The masking agent layer is locally heated to form a grid mask. Selected parts of the masking agent layer defined by locally heating are removed to form openings in the grid mask. A contact metallization is applied on the grid mask.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 5, 2011
    Inventors: Lawrence A. Clevenger, Rainer K. Krause, Zhengwen O. Li, Kevin S. Petrarca, Roger A. Quon, Carl Radens, Brian C. Sapp