Patents by Inventor Wee Chow

Wee Chow 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).

  • End effector for transferring a wafer
    Publication number: 20070177963
    Abstract: An end effector for transferring a wafer, a method of re-sitting a wafer in a wafer cassette, and a method of calibrating positioning of an end effector for wafer-pick. The end effector comprises a blade for supporting the wafer during transfer, and at least one engagement element coupled to the blade, the engagement element protruding from the blade for engaging the wafer during insertion of the blade into a wafer cassette for re-sitting of the wafer in the cassette.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 2, 2007
    Inventors: Chee Tang, Wee Chow, Wai Yip, Hong Chia