Patents by Inventor Michael F. Pas

Michael F. Pas 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).

  • Patent number: 5803980
    Abstract: One embodiment of the instant invention is a method of preventing the formation of silicic acid on exposed silicon of an electronic device formed on a silicon wafer and having silicon features, the method comprising: removing a portion of oxide (step 302) formed on the silicon wafer thereby exposing at least some portion of the silicon substrate or the silicon features; cleaning the silicon wafer by subjecting the silicon wafer to an ozonated solution (step 304), preferably deionized water; and drying the silicon wafer (step 306). Preferably, a thin oxide is formed on the silicon wafer during the step of subjecting the wafer to the ozonated solution. The thin oxide is, preferably, on the order of approximately 6 to 20 .ANG. thick. After removing said portions of oxide and thereby exposing portions of said silicon wafer and/or silicon feature, the exposed silicon becomes hydrophobic.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: September 8, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: Michael F. Pas, Jin-goo Park