Patents by Inventor Thomas Richard Lepkowski

Thomas Richard Lepkowski 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).

  • Selective T-gate process
    Patent number: 6524937
    Abstract: A process of simultaneously forming a plurality of metal features on a substrate, in which at least one metal feature has undercut sides and at least one metal feature does not have undercut sides involves the application of a lower photoresist feature having rounded sides and an upper photoresist feature having undercut sides wherein the upper photoresist feature is positioned in offset relation to the lower photoresist feature such that one edge of the upper photoresist feature does not extend over the corresponding edge of the lower photoresist feature and the other edge of the upper photoresist feature does extend beyond the corresponding edge of the lower photoresist feature.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: February 25, 2003
    Assignee: Tyco Electronics Corp.
    Inventors: Ying Michael Cheng, Thomas Richard Lepkowski, Costas Varmazis