Patents by Inventor Sanket P. Sant

Sanket P. Sant 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).

  • Publication number: 20140034242
    Abstract: A two piece edge ring assembly is configured to surround a semiconductor substrate in a plasma processing chamber wherein plasma is generated and used to process the semiconductor substrate. The edge ring assembly comprises upper and lower rings which have an outer protective coating. The upper and lower rings are configured such that the upper ring is supported on an outer portion of the upper surface of the lower ring and the protective coatings are on plasma exposed surfaces of the upper and lower rings.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: Lam Research Corporation
    Inventors: Sanket P. Sant, Robert Griffith O'Neill
  • Patent number: 8119532
    Abstract: A dual zone plasma processing chamber is provided. The plasma processing chamber includes a first substrate support having a first support surface adapted to support a first substrate within the processing chamber and a second substrate support having a second support surface adapted to support a second substrate within the processing chamber. One or more gas sources in fluid communication with one or more gas distribution members supply process gas to a first zone adjacent to the first substrate support and a second zone adjacent to the second substrate support. A radio-frequency (RF) antenna adapted to inductively couple RF energy into the interior of the processing chamber and energize the process gas into a plasma state in the first and second zones. The antenna is located between the first substrate support and the second substrate support.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: February 21, 2012
    Assignee: Lam Research Corporation
    Inventor: Sanket P. Sant
  • Publication number: 20110230040
    Abstract: A dual zone plasma processing chamber is provided. The plasma processing chamber includes a first substrate support having a first support surface adapted to support a first substrate within the processing chamber and a second substrate support having a second support surface adapted to support a second substrate within the processing chamber. One or more gas sources in fluid communication with one or more gas distribution members supply process gas to a first zone adjacent to the first substrate support and a second zone adjacent to the second substrate support. A radio-frequency (RF) antenna adapted to inductively couple RF energy into the interior of the processing chamber and energize the process gas into a plasma state in the first and second zones. The antenna is located between the first substrate support and the second substrate support.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 22, 2011
    Applicant: Lam Research Corporation
    Inventor: Sanket P. Sant
  • Patent number: 7972471
    Abstract: A dual zone plasma processing chamber is provided. The plasma processing chamber includes a first substrate support having a first support surface adapted to support a first substrate within the processing chamber and a second substrate support having a second support surface adapted to support a second substrate within the processing chamber. One or more gas sources in fluid communication with one or more gas distribution members supply process gas to a first zone adjacent to the first substrate support and a second zone adjacent to the second substrate support. A radio-frequency (RF) antenna adapted to inductively couple RF energy into the interior of the processing chamber and energize the process gas into a plasma state in the first and second zones. The antenna is located between the first substrate support and the second substrate support.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: July 5, 2011
    Assignee: Lam Research Corporation
    Inventor: Sanket P. Sant
  • Publication number: 20090004874
    Abstract: A dual zone plasma processing chamber is provided. The plasma processing chamber includes a first substrate support having a first support surface adapted to support a first substrate within the processing chamber and a second substrate support having a second support surface adapted to support a second substrate within the processing chamber. One or more gas sources in fluid communication with one or more gas distribution members supply process gas to a first zone adjacent to the first substrate support and a second zone adjacent to the second substrate support. A radio-frequency (RF) antenna adapted to inductively couple RF energy into the interior of the processing chamber and energize the process gas into a plasma state in the first and second zones. The antenna is located between the first substrate support and the second substrate support.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: Lam Research Corporation
    Inventor: Sanket P. Sant