Patents by Inventor Stuart Litwin

Stuart Litwin 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: 7745236
    Abstract: A method of deprocessing a semiconductor structure is provided. The method involves removing a silicide layer over a second poly layer, an interpoly dielectric layer, a first poly layer, an optionally an oxide layer on a substrate. The method may further involve at least one of removing a second poly layer, removing an interpoly dielectric layer, removing a first poly layer, removing an oxide layer, and removing an unimplanted portion of a substrate. The exposed layer/portion of the semiconductor structure can be subjected to an inspection for defects and/or other characteristics. The inspection can aid in defect reduction strategies, among other things, when applied to new technology ramp, monitoring of baseline wafer starts, customer returns, etc.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Spansion LLC
    Inventors: Charles Ray Mathews, Alex Bierwag, Stuart Litwin
  • Patent number: 7691737
    Abstract: A method of deprocessing a semiconductor structure is provided. The method involves removing one or more interlevel dielectric layers and one or more metal components from a frontside of the semiconductor structure. By removing the interlevel dielectric layer and the metal component, the exposed portion of the semiconductor structure can be subjected to an inspection for defects and/or other characteristics by using an inspection tool. The inspection can aid in defect reduction strategies, among other things, when applied to new technology ramp, monitoring of baseline wafer starts, customer returns, etc.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: April 6, 2010
    Assignee: Spansion LLC
    Inventors: Charles Ray Mathews, Alex Bierwag, Stuart Litwin
  • Publication number: 20080153183
    Abstract: A method of deprocessing a semiconductor structure is provided. The method involves removing a silicide layer over a second poly layer, an interpoly dielectric layer, a first poly layer, an optionally an oxide layer on a substrate. The method may further involve at least one of removing a second poly layer, removing an interpoly dielectric layer, removing a first poly layer, removing an oxide layer, and removing an unimplanted portion of a substrate. The exposed layer/portion of the semiconductor structure can be subjected to an inspection for defects and/or other characteristics. The inspection can aid in defect reduction strategies, among other things, when applied to new technology ramp, monitoring of baseline wafer starts, customer returns, etc.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Applicant: SPANSION LLC
    Inventors: Charles Ray Mathews, Alex Bierwag, Stuart Litwin
  • Publication number: 20080153185
    Abstract: A method of deprocessing a semiconductor structure is provided. The method involves removing one or more interlevel dielectric layers and one or more metal components from a frontside of the semiconductor structure. By removing the interlevel dielectric layer and the metal component, the exposed portion of the semiconductor structure can be subjected to an inspection for defects and/or other characteristics by using an inspection tool. The inspection can aid in defect reduction strategies, among other things, when applied to new technology ramp, monitoring of baseline wafer starts, customer returns, etc.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Applicant: SPANSION LLC
    Inventors: Charles Ray Mathews, Alex Bierwag, Stuart Litwin