Patents by Inventor Edward Yarmchuk

Edward Yarmchuk 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: 20120309132
    Abstract: A heat spreader or lid for a microelectronic package, in which the heat spreader has an underside surface that includes at least one curvilinear contour, in which the curvilinear contour is selected from at least one positive or protruding curvilinear feature, at least one negative or recessed curvilinear feature, and a combination thereof. A microelectronic package that includes the heat spreader/lid, in which there is improved heat dissipation or reduced mechanical stress in an interface between the heat spreader/lid and a circuit chip.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Applicant: International Business Machines Corporation
    Inventors: Michael A. Gaynes, Maurice McGlashan-Powell, Soojae Park, Edward Yarmchuk
  • Patent number: 8269340
    Abstract: A heat spreader or lid for a microelectronic package, in which the heat spreader has an underside surface that includes at least one curvilinear contour, in which the curvilinear contour is selected from at least one positive or protruding curvilinear feature, at least one negative or recessed curvilinear feature, and a combination thereof. A microelectronic package that includes the heat spreader/lid, in which there is improved heat dissipation or reduced mechanical stress in an interface between the heat spreader/lid and a circuit chip.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: September 18, 2012
    Assignee: International Business Machines Corporation
    Inventors: Michael A. Gaynes, Maurice McGlashan-Powell, Soojae Park, Edward Yarmchuk
  • Publication number: 20090072387
    Abstract: A heat spreader or lid for a microelectronic package, in which the heat spreader has an underside surface that includes at least one curvilinear contour, in which the curvilinear contour is selected from at least one positive or protruding curvilinear feature, at least one negative or recessed curvilinear feature, and a combination thereof. A microelectronic package that includes the heat spreader/lid, in which there is improved heat dissipation or reduced mechanical stress in an interface between the heat spreader/lid and a circuit chip.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 19, 2009
    Applicant: International Business Machines Corporation
    Inventors: Michael A. Gaynes, Maurice McGlashan-Powell, Soojae Park, Edward Yarmchuk
  • Publication number: 20070108984
    Abstract: A method and apparatus for the non-contact electrical test of both opens and shorts in electronic substrates. Top surface electrical test features are exposed to an ionization source under ambient conditions and the subsequent charge build up is measured as a drain current by probes contacting corresponding bottom surface features. Opens are detected by an absence of a drain current and shorts are detected by turning off the ionization source and re-measuring the bottom surface probes with a varying bias applied to each probe in the array.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 17, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher Cline, Edward Yarmchuk, Vincent Arena, Donald Merte, Thomas Picunko, Brian Wojszynski, Charles Hendricks, Michael Scaman, Robert Olyha, Arnold Halperin
  • Publication number: 20050105200
    Abstract: Improvements in placement of timing patterns in self-servowriting include correcting for systematic errors due to geometric effects. A correction is made for varying systematic errors, such as when the recording head has spatially separate read and write elements. Further, servopattern rotation due to residual or unmeasured systematic errors is reduced by using a once per revolution clock index derived from the motor drive current waveform or any other sensor. In one aspect of correcting for systematic errors in the writing of timing patterns on a storage medium of a storage device, a time interval between a trigger pattern written at a first radial position of the storage medium and a rotational index is measured. The rotational index is related to the rotational orientation of the storage medium with respect to a fixed frame of the storage device.
    Type: Application
    Filed: December 17, 2004
    Publication date: May 19, 2005
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Timothy Chainer, Anthony Praino, Mark Schultz, Bucknell Webb, Edward Yarmchuk