Patents by Inventor William Tom Batchelder

William Tom Batchelder 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: 6544338
    Abstract: A curing module for use in fabricating semiconductor wafers is provided. The cure module comprises a housing and a bottom plate. The housing also contains a heating plate adjacent a top surface of the housing and side walls extending from the top surface. The housing sidewalls, the heating plate and the bottom plate define a chamber within the cure module. Films disposed on semiconductor wafers are cured within the chamber by being raised on lift pins to the heating plate during a heating operation and then lowered on the lift pins to the bottom plate during a cooling operation.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: April 8, 2003
    Assignee: Novellus Systems, Inc.
    Inventors: William Tom Batchelder, Fred Joseph Chetcuti, Lawrence Allen Gochberg
  • Patent number: 6483081
    Abstract: A system and method for thermal curing of substrates are provided. In one example, a pair of vertical furnace tubes are configured with a hot plate positioned between the lower regions of the furnace tubes and connected to each tube by a passageway. A cooling chamber is positioned between the furnace tubes in an upper region and connected to both tubes by an upper passageway. A wafer transport is configured within each furnace tube to transition wafers from the lower region of each tube, through a middle region of each tube, and to the upper region of each tube. A method is provided in which substrates are pre-heated on the hot plate and then transitioned to a slot in the wafer transport in the vertical furnace tube. The wafer transport is indexed one position as additional substrates are pre-heated and transitioned. The substrates are thermally cured and are then transitioned from the wafer transport to the cooling chamber employing a first in/first out process.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 19, 2002
    Assignee: Novellus Systems, Inc.
    Inventor: William Tom Batchelder