Patents by Inventor Garrett J. Heyns

Garrett J. Heyns 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).

  • Probemat cleaning system using CO.sub.2 pellets
    Patent number: 5364472
    Abstract: A system for cleaning test probes attached to a probe mat fixture by propelling CO.sub.2 pellets at the test probes, by rotating the fixture so that the pellets impact different sides of the test probes, and by providing electrostatic protection for active devices mounted on the probemat fixture. The CO.sub.2 pellets are propelled so that they strike the test probes at an angle to the horizontal plane of the test probe as mounted on the probemat fixture. Electrostatic protection is provided by connecting all electrical connections to the probemat fixture to ground and by reducing electrostatic charge build up on the probemat fixture by using an ionizer to direct ions at the probemat fixture.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: November 15, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Garrett J. Heyns, Terry R. McClure, Hugh Nicholl, Peter H. Read, Steven M. Schulte, Mohammad F. Tabrizi