Patents by Inventor Brett J. Croft

Brett J. Croft 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).

  • Apparatuses and methods for adjusting a substrate centering system
    Patent number: 6409463
    Abstract: Apparatuses and methods for use in adjusting a substrate centering system to center a substrate on a rotatable chuck in a semiconductor processing machine, the chuck including at least one reference point. One apparatus comprises a plate configured to be placed on the chuck and at least one centering mark formed on the plate, wherein the at least one centering mark is configured so that it may be compared to the at least one reference point on the chuck to determine if the plate is centered. The plate often is at least partially transparent so that its position relative to the at least one reference point on the chuck may be seen.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: June 25, 2002
    Assignee: SEH America, Inc.
    Inventors: Brett J. Croft, Michael Huston