Patents by Inventor Michael J. Sowers

Michael J. Sowers 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).

  • Apparatus and method for automatically adjusting power output of an ultrasonic generator
    Patent number: 5357423
    Abstract: Apparatus and a method for controlling the power output of an ultrasonic generator to a transducer includes a variable impedance network circuit which is interposed between the generator and the transducer. Sensing circuits and a microprocessor are coupled to the input of the transducer so that the total impedance Z.sub.T, the transducer impedance in free air Z.sub.FA and the load impedance Z.sub.L may be calculated and the network impedance Z.sub.NW may be set for a bonding operation to maintain the power level P.sub.L or the impedance Z.sub.L at a desired predetermined level.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: October 18, 1994
    Assignee: Kulicke and Soffa Investments, Inc.
    Inventors: James M. Weaver, Michael J. Sowers