Patents by Inventor Yen C. Chu

Yen C. Chu 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).

  • Salsa clean process
    Patent number: 6340395
    Abstract: A wet spray cleaning process for removing thick organic layers including hardened photoresist from the surface of silicon wafers yields low residual particle counts for photoresist thicknesses up to 3 microns, and maintains low residual particle density for oxide-covered wafer regions. The cleaning process uses multiple cycles of SPM/DI/APM/DI, without an intervening drying step therebetween.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: January 22, 2002
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Jacques Bertrand, Barry Dick, Shu Tsai Wang, Weiwen Ou, Lynne A. Okada, Yen C. Chu
  • Frame fixture for camouflage painting
    Patent number: 4800838
    Abstract: A frame fixture for use with a source of spray paint for camouflage painting of vehicles. A frame is formed in a shape corresponding generally to the shape of a portion of a vehicle to be painted. A plurality of strips connected to the frame divides an area inside the frame into a plurality of areas corresponding to areas to be painted on the vehicle. The strips can be mounted a predetermined distance from the vehicle to allow paint to spray into an area between the strips and the vehicle.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: January 31, 1989
    Assignee: FMC Corporation
    Inventors: Yen C. Chu, Edward N. Berticevich, Max J. Soldenwagner