Patents by Inventor Gary Calabrese

Gary Calabrese 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).

  • Near UV photoresist
    Patent number: 5212046
    Abstract: A photoacid-generating photoresist composition sensitized with an aromatic, multi-ring, heterocylcic nitrogen containing sensitizer, preferably a ring extended phenothiazine derivative. The use of the sensitizer permits exposure of photoresists to near UV irradiation where such photoresists have heretofore been exposed to deep UV irradiation. The invention is especially useful for acid hardening photoresist systems.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: May 18, 1993
    Assignee: Shipley Company Inc.
    Inventors: Angelo A. Lamola, Gary Calabrese, Roger Sinta