Patents by Inventor Tingray Chien

Tingray Chien 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: 6214184
    Abstract: The present invention provides a wafer pedestal for holding a semiconductor wafer that includes a pedestal body of essentially a metal disc and at least three insulating spacers that are situated on a top surface of the pedestal body for supporting and insulating a silicon wafer on and from the pedestal body. A wafer may be suitably supported by the insulating plugs such that no concentrated electric field will form on the wafer surface at or near the insulating plugs to cause arcing and furthermore, the wafer is supported sufficiently away from the pedestal body such that any subsequent film depositions does not adhere the wafer to the pedestal body.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: April 10, 2001
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Tingray Chien, Shih-Ming Wang, Shun-Hsiang Chen