Patents by Inventor Matthew Lassiter

Matthew Lassiter 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: 20130206199
    Abstract: A thermoelectric generator and methods of fabricating a thermoelectric generator are disclosed. An exemplary thermoelectric generator includes an upper electrode, a lower electrode, and a thermocouple disposed between the upper electrode and the lower electrode. The upper electrode, the lower electrode, and the thermocouple are configured to effect heat flux laterally through the thermocouple.
    Type: Application
    Filed: August 10, 2012
    Publication date: August 15, 2013
    Applicant: AEgis Technologies Group, Inc.
    Inventors: Matthew Lassiter, David Thomas, James Luke
  • Patent number: 7049034
    Abstract: The present invention generally relates, to optical lithography and more particularly relates to the fabrication of transparent or semitransparent phase shifting masks used in the manufacture of semiconductor devices. In particular, the present invention utilizes an internal etch stop layer and either a deposited substantially transparent layer, deposited partially transparent layer or deposited opaque thereon in an otherwise conventional photomask. The photomask of the present invention is used to make semiconductor devices or integrated circuits.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 23, 2006
    Assignee: Photronics, Inc.
    Inventors: Patrick M. Martin, Matthew Lassiter, Darren Taylor, Michael Cangemi, Eric Poortinga
  • Publication number: 20050053847
    Abstract: The present invention generally relates, to optical lithography and more particularly relates to the fabrication of transparent or semitransparent phase shifting masks used in the manufacture of semiconductor devices. In particular, the present invention utilizes an internal etch stop layer and either a deposited substantially transparent layer, deposited partially transparent layer or deposited opaque thereon in an otherwise conventional photomask. The photomask of the present invention is used to make semiconductor devices or integrated circuits.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 10, 2005
    Inventors: Patrick Martin, Matthew Lassiter, Darren Taylor, Michael Cangemi, Eric Poortinga
  • Patent number: 6855463
    Abstract: The present invention relates generally to improved photomask blanks used in photolithography for the manufacture of integrated circuits and other semiconductor devices, and more specifically, to the detection of defects in such photomasks after processing. In particular, the present invention is directed to a photomask blank having one or more intermediate layers made from materials having a higher extinction coefficient at the inspection tool wavelength than exposure tool wavelengths. The intermediate layer(s) are made from materials that absorb a sufficient amount of light to meet the optical requirements of inspection tools while at the same time transmit a sufficient amount of light to meet the optical requirements of exposure tools. As a result, the photomask improves inspection results of a photomask without sacrificing transmission properties during the semiconductor writing process.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: February 15, 2005
    Assignee: Photronics, Inc.
    Inventors: Matthew Lassiter, Michael Cangemi
  • Publication number: 20050026053
    Abstract: The present invention generally relates to optical lithography and more particularly relates to the fabrication of transparent or semitransparent phase shifting masks used in the manufacture of semiconductor devices. In particular, the present invention utilizes an internal etch stop layer and either a deposited substantially transparent layer, deposited partially transparent layer or deposited opaque thereon in an otherwise conventional photomask. The photomask of the present invention is used to make semiconductor devices or integrated circuits.
    Type: Application
    Filed: September 8, 2004
    Publication date: February 3, 2005
    Inventors: Patrick Martin, Matthew Lassiter, Darren Taylor, Michael Cangemi, Eric Poortinga
  • Publication number: 20040043303
    Abstract: The present invention relates generally to improved photomask blanks used in photolithography for the manufacture of integrated circuits and other semiconductor devices, and more specifically, to the detection of defects in such photomasks after processing. In particular, the present invention is directed to a photomask blank having one or more intermediate layers made from materials having a higher extinction coefficient at the inspection tool wavelength than exposure tool wavelengths. The intermediate layer(s) are made from materials that absorb a sufficient amount of light to meet the optical requirements of inspection tools while at the same time transmit a sufficient amount of light to meet the optical requirements of exposure tools. As a result, the photomask improves inspection results of a photomask without sacrificing transmission properties during the semiconductor writing process.
    Type: Application
    Filed: August 27, 2002
    Publication date: March 4, 2004
    Inventors: Matthew Lassiter, Michael Cangemi