Patents by Inventor Benjamin M. Rathsack

Benjamin M. Rathsack 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: 8449293
    Abstract: A method for patterning a substrate with extreme ultraviolet (EUV) radiation is provided. The method includes contacting a surface of the substrate with at least one surface modification agent that reacts with and bonds to the surface 402 of the substrate 401 to provide a modified surface. A layer of photoresist is formed on the modified surface, followed by exposing the layer of photoresist to a pattern of EUV radiation. The surface modification agent has a general formula: X-L-Z, where X is a leaving group; L is a linkage group including a substituted or un-substituted carbon chain having 1 to 20 carbons, a sulfur moiety, a silicon moiety, or combinations thereof; and Z is at least one of an acid functional group, a photoactive acid generator group or a halide.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: May 28, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Benjamin M. Rathsack, Steven Scheer, Mark H. Somervell
  • Patent number: 8435728
    Abstract: A method and system for patterning a substrate using a radiation-sensitive material is described. The method and system include forming a layer of radiation-sensitive material on a substrate, exposing the layer of radiation-sensitive material to a pattern of radiation, and then performing a post-exposure bake following the exposing. The imaged layer of radiation-sensitive material is then developed to remove either a region having high radiation exposure or a region having low radiation exposure to form radiation-sensitive material lines. An exposure gradient within the radiation-sensitive material lines is then removed, followed by slimming the radiation-sensitive material lines.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 7, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Michael A. Carcasi, Benjamin M. Rathsack, Mark H. Somervell
  • Patent number: 8338086
    Abstract: A method and system for patterning a substrate using a radiation-sensitive material is described. The method and system include forming a layer of radiation-sensitive material on a substrate, exposing the layer of radiation-sensitive material to a pattern of radiation, and then performing a post-exposure bake following the exposing. The imaged layer of radiation-sensitive material is then positive-tone developed to remove a region having high radiation exposure to form radiation-sensitive material lines. An exposure gradient within the radiation-sensitive material lines is then removed, followed by slimming the radiation-sensitive material lines.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 25, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Michael A. Carcasi, Benjamin M. Rathsack, Mark H. Somervell
  • Publication number: 20110269078
    Abstract: A method for patterning a substrate with extreme ultraviolet (EUV) radiation is provided. The method includes contacting a surface of the substrate with at least one surface modification agent that reacts with and bonds to the surface 402 of the substrate 401 to provide a modified surface. A layer of photoresist is formed on the modified surface, followed by exposing the layer of photoresist to a pattern of EUV radiation. The surface modification agent has a general formula: X-L-Z, where X is a leaving group; L is a linkage group including a substituted or un-substituted carbon chain having 1 to 20 carbons, a sulfur moiety, a silicon moiety, or combinations thereof; and Z is at least one of an acid functional group, a photoactive acid generator group or a halide.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Benjamin M. Rathsack, Steven Scheer, Mark H. Somervell
  • Publication number: 20110244403
    Abstract: A method and system for patterning a substrate using a radiation-sensitive material is described. The method and system include forming a layer of radiation-sensitive material on a substrate, exposing the layer of radiation-sensitive material to a pattern of radiation, and then performing a post-exposure bake following the exposing. The imaged layer of radiation-sensitive material is then developed to remove either a region having high radiation exposure or a region having low radiation exposure to form radiation-sensitive material lines. An exposure gradient within the radiation-sensitive material lines is then removed, followed by slimming the radiation-sensitive material lines.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 6, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Michael A. Carcasi, Benjamin M. Rathsack, Mark H. Somervell
  • Publication number: 20110244402
    Abstract: A method and system for patterning a substrate using a radiation-sensitive material is described. The method and system include forming a layer of radiation-sensitive material on a substrate, exposing the layer of radiation-sensitive material to a pattern of radiation, and then performing a post-exposure bake following the exposing. The imaged layer of radiation-sensitive material is then positive-tone developed to remove a region having high radiation exposure to form radiation-sensitive material lines. An exposure gradient within the radiation-sensitive material lines is then removed, followed by slimming the radiation-sensitive material lines.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Michael A. Carcasi, Benjamin M. Rathsack, Mark H. Somervell