Patents by Inventor William Oldham

William Oldham 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: 9669334
    Abstract: A filter is used in a target material supply apparatus and includes a sheet having a first flat surface and a second opposing flat surface, and a plurality of through holes. The first flat surface is in fluid communication with a reservoir that holds a target mixture that includes a target material and non-target particles. The through holes extend from the second flat surface and are fluidly coupled at the second flat surface to an orifice of a nozzle. The sheet has a surface area that is exposed to the target mixture, the exposed surface area being at least a factor of one hundred less than an exposed surface area of a sintered filter having an equivalent transverse extent to that of the sheet.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 6, 2017
    Assignee: ASML Netherlands B.V.
    Inventors: Igor V. Fomenkov, William N. Partlo, Gregory O. Vaschenko, William Oldham
  • Publication number: 20150209701
    Abstract: A filter is used in a target material supply apparatus and includes a sheet having a first flat surface and a second opposing flat surface, and a plurality of through holes. The first flat surface is in fluid communication with a reservoir that holds a target mixture that includes a target material and non-target particles. The through holes extend from the second flat surface and are fluidly coupled at the second flat surface to an orifice of a nozzle. The sheet has a surface area that is exposed to the target mixture, the exposed surface area being at least a factor of one hundred less than an exposed surface area of a sintered filter having an equivalent transverse extent to that of the sheet.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 30, 2015
    Inventors: Igor V. Fomenkov, William N. Partlo, Gregory O. Vaschenko, William Oldham
  • Patent number: 9029813
    Abstract: A filter is used in a target material supply apparatus and includes a sheet having a first flat surface and a second opposing flat surface, and a plurality of through holes. The first flat surface is in fluid communication with a reservoir that holds a target mixture that includes a target material and non-target particles. The through holes extend from the second flat surface and are fluidly coupled at the second flat surface to an orifice of a nozzle. The sheet has a surface area that is exposed to the target mixture, the exposed surface area being at least a factor of one hundred less than an exposed surface area of a sintered filter having an equivalent transverse extent to that of the sheet.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: May 12, 2015
    Assignee: ASML Netherlands B.V.
    Inventors: Igor V. Fomenkov, William N. Partlo, Georgiy O. Vaschenko, William Oldham
  • Publication number: 20120292527
    Abstract: A filter is used in a target material supply apparatus and includes a sheet having a first flat surface and a second opposing flat surface, and a plurality of through holes. The first flat surface is in fluid communication with a reservoir that holds a target mixture that includes a target material and non-target particles. The through holes extend from the second flat surface and are fluidly coupled at the second flat surface to an orifice of a nozzle. The sheet has a surface area that is exposed to the target mixture, the exposed surface area being at least a factor of one hundred less than an exposed surface area of a sintered filter having an equivalent transverse extent to that of the sheet.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: CYMER, INC.
    Inventors: Igor V. Fomenkov, William N. Partlo, Georgiy O. Vaschenko, William Oldham
  • Patent number: 8075732
    Abstract: A method and apparatus that may comprise an EUV light producing mechanism utilizing an EUV plasma source material comprising a material that will form an etching compound, which plasma source material produces EUV light in a band around a selected center wavelength comprising: an EUV plasma generation chamber; an EUV light collector contained within the chamber having a reflective surface containing at least one layer comprising a material that does not form an etching compound and/or forms a compound layer that does not significantly reduce the reflectivity of the reflective surface in the band; an etchant source gas contained within the chamber comprising an etchant source material with which the plasma source material forms an etching compound, which etching compound has a vapor pressure that will allow etching of the etching compound from the reflective surface. The etchant source material may comprises a halogen or halogen compound.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: December 13, 2011
    Assignee: Cymer, Inc.
    Inventors: William N. Partlo, Richard L. Sandstrom, Igor V. Fomenkov, Alexander I. Ershov, William Oldham, William F. Marx, Oscar Hemberg
  • Patent number: 7650443
    Abstract: Methods and apparatus for allocating access to a buffer of a host device to buffer data transferred between a controller of the host device and one or more remote devices are disclosed. The host device is configured to couple to each of the one or more remote devices through one or more corresponding dedicated lanes. Buffer access is allocated by determining, for each of one or more remote devices coupled to the host device, a number of dedicated lanes between the host device and each of the one or more remote devices and allocating access to the buffer of the host device for each of the one or more remote devices responsive to the determined number of dedicated lanes.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: January 19, 2010
    Assignee: Unisys Corporation
    Inventors: Edward T. Cavanagh, Jr., William Oldham
  • Patent number: 7141806
    Abstract: An EUV light source collector erosion mitigation method and apparatus for a collector comprising a multilayered mirror collector comprising a collector outer surface composed of a capping material subject to removal due to a removing interaction with materials created in an EUV light-creating plasma, is disclosed which may comprise including within an EUV plasma source material a replacement material. The replacement material may comprise the same material as the capping material of the multilayered mirror. The replacement material may comprise a material that is essentially transparent to light in a selected band of EUV light, e.g., a spectrum of EUV light generated in a plasma of a plasma source material. The replacement material may comprise a material not susceptible to being etched by an etching material used to remove deposited plasma source material from the collector, e.g., a halogen etchant.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: November 28, 2006
    Assignee: Cymer, Inc.
    Inventors: William N. Partlo, Alexander I. Ershov, Igor V. Fomenkov, David W. Myers, William Oldham
  • Publication number: 20060091109
    Abstract: A method and apparatus that may comprise an EUV light producing mechanism utilizing an EUV plasma source material comprising a material that will form an etching compound, which plasma source material produces EUV light in a band around a selected center wavelength comprising: an EUV plasma generation chamber; an EUV light collector contained within the chamber having a reflective surface containing at least one layer comprising a material that does not form an etching compound and/or forms a compound layer that does not significantly reduce the reflectivity of the reflective surface in the band; an etchant source gas contained within the chamber comprising an etchant source material with which the plasma source material forms an etching compound, which etching compound has a vapor pressure that will allow etching of the etching compound from the reflective surface. The etchant source material may comprises a halogen or halogen compound.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 4, 2006
    Inventors: William Partlo, Richard Sandstrom, Igor Fomenkov, Alexander Ershov, William Oldham, William Marx, Oscar Hemberg
  • Publication number: 20050111119
    Abstract: Disclosed is an actuator for a phase mirror array including a) a first support member extending perpendicularly from a surface of a mirror, b) a plurality of flexures engaging the first support member with the flexures being generally parallel to the surface of the mirror, c) second and third support members engaging opposing ends of the flexures, at least one of the second and third support members functioning as a first electrode, and d) a second electrode positioned in spaced parallel relationship with the flexures, whereby a voltage impressed across the first electrode and the second electrode causes displacement of the supported mirror on the support structure. The second electrode and one of the flexures can have undulating surfaces which mate in a comb relationship.
    Type: Application
    Filed: September 28, 2004
    Publication date: May 26, 2005
    Inventors: William Oldham, Yijian Chen, Yashesh Shroff