Patents by Inventor Steven Raymond Walther

Steven Raymond Walther 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: 20180315605
    Abstract: A method for ion beam implantation is provided. The method provides an ion implantation with a multiple-geometric-orientation ion beam that accommodates a range of tilt angles. The range of tilt angles can be defined with a dose distribution specified across the range of tilt angles. The method comprises: acquiring ion implantation parameters, determining the number of exposure steps, selecting implantation parameters corresponding to the exposure steps, acquiring implantation data, defining a first implantation sequence, creating a multiple-geometric-orientation implant exposure sequence according to the first implantation sequence, and performing the ion implantation according to the multiple-geometric-orientation implant exposure sequence.
    Type: Application
    Filed: March 5, 2018
    Publication date: November 1, 2018
    Inventor: Steven Raymond Walther
  • Patent number: 8636949
    Abstract: Improved electron beam sterilization apparatus and shielding techniques for use in are provided. A controller modulates an electron beam when sterilizing an interior to an object to ensure that adequate dose is received. Sterilization carousels are configured with input/discharge feeds to reduce the possibility of humans being exposed to dangerous levels of radiation. The system reduces the amount of shielding required to thereby lower cost of installation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 28, 2014
    Assignee: Hitachi Zosen Corporation
    Inventors: Michael Lawrence Bufano, Steven Raymond Walther, Peter F. Hays, William Frederick Thomson, Arthur Wayne Sommerstein, Gerald Martin Friedman, P. Michael Fletcher, Stephen Whittaker Into, Anne Testoni, Brian S. Phillips
  • Publication number: 20130015365
    Abstract: Improved electron beam sterilization apparatus and shielding techniques for use in are provided. A controller modulates an electron beam when sterilizing an interior to an object to ensure that adequate dose is received. Sterilization carousels are configured with input/discharge feeds to reduce the possibility of humans being exposed to dangerous levels of radiation. The system reduces the amount of shielding required to thereby lower cost of installation.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Applicant: HITACHI ZOSEN CORPORATION
    Inventors: Michael Lawrence Bufano, Steven Raymond Walther, Peter F. Hays, William Frederick Thomson, Arthur Wayne Sommerstein, Gerald Martin Friedman, P. Michael Fletcher, Stephen Whittaker Into, Anne Testoni, Brian S. Phillips
  • Patent number: 8338796
    Abstract: An electron beam emitter includes an electron generator for generating electrons. The electron generator can have a housing containing at least one electron source for generating the electrons. The at least one electron source has a width. The electron generator housing can have an electron permeable region spaced from the at least one electron source for allowing extraction of the electrons from the electron generator housing. The electron permeable region can include a series of narrow elongate slots and ribs formed in the electron generator housing and extending laterally beyond the width of the at least one electron source. The electron permeable region can be configured and positioned relative to the at least one electron source for laterally spreading the electrons that are generated by the at least one electron source.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: December 25, 2012
    Assignee: Hitachi Zosen Corporation
    Inventors: Steven Raymond Walther, Michael L. Bufano, Gerald M. Friedman
  • Patent number: 8293173
    Abstract: Improved electron beam sterilization apparatus and shielding techniques for use in are provided. A controller modulates an electron beam when sterilizing an interior to an object to ensure that adequate dose is received. Sterilization carousels are configured with input/discharge feeds to reduce the possibility of humans being exposed to dangerous levels of radiation. The system reduces the amount of shielding required to thereby lower cost of installation.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 23, 2012
    Assignee: Hitachi Zosen Corporation
    Inventors: Michael Lawrence Bufano, Steven Raymond Walther, Peter F. Hays, William Frederick Thomson, Arthur Wayne Sommerstein, Gerald Martin Friedman, P. Michael Fletcher, Stephen Whittaker Into, Anne Testoni, Brian S. Phillips
  • Publication number: 20110012030
    Abstract: Improved electron beam sterilization apparatus and shielding techniques for use in are provided. A controller modulates an ebeam when sterilizing an interior to an object to ensure that adequate dose is received. Sterilization carousels are configured with input/discharge feeds to reduce the possibility of humans being exposed to dangerous levels of radiation. The system reduces the amount of shielding required to thereby lower cost of installation.
    Type: Application
    Filed: April 29, 2010
    Publication date: January 20, 2011
    Inventors: Michael Lawrence Bufano, Steven Raymond Walther, Peter F. Hays, William Frederick Thomson, Arthur Wayne Sommerstein, Gerald Martin Friedman, P. Michael Fletcher, Stephen Whittacker Into, Anne Testoni, Brian S. Phillips
  • Publication number: 20110012032
    Abstract: Improved electron beam sterilization apparatus and shielding techniques for use in are provided. A controller modulates an electron beam when sterilizing an interior to an object to ensure that adequate dose is received. Sterilization carousels are configured with input/discharge feeds to reduce the possibility of humans being exposed to dangerous levels of radiation. The system reduces the amount of shielding required to thereby lower cost of installation.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 20, 2011
    Inventors: Michael Lawrence Bufano, Steven Raymond Walther, Peter F. Hays, William Frederick Thomson, Arthur Wayne Sommerstein, Gerald Martin Friedman, P. Michael Fletcher, Stephen Whittaker Into, Anne Testoni, Brian S. Phillips
  • Publication number: 20090289204
    Abstract: An electron beam emitter includes an electron generator for generating electrons. The electron generator can have a housing containing at least one electron source for generating the electrons. The at least one electron source has a width. The electron generator housing can have an electron permeable region spaced from the at least one electron source for allowing extraction of the electrons from the electron generator housing. The electron permeable region can include a series of narrow elongate slots and ribs formed in the electron generator housing and extending laterally beyond the width of the at least one electron source. The electron permeable region can be configured and positioned relative to the at least one electron source for laterally spreading the electrons that are generated by the at least one electron source.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Inventors: Steven Raymond Walther, Michael L. Bufano, Gerald M. Friedman
  • Publication number: 20080132046
    Abstract: A plasma doping apparatus includes a chamber and a plasma source that generates ions from a dopant gas. A platen is positioned in the chamber adjacent to the plasma source that supports a wafer for plasma doping. A deflection grid comprising a first and second deflection electrode is positioned in the chamber between the plasma source and the platen. The deflection grid deflects ions with an angle that is proportional to a voltage difference between the first and the second deflection electrodes.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 5, 2008
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventor: Steven Raymond Walther