Patents by Inventor Uday Nayak

Uday Nayak 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: 20080150565
    Abstract: An improved method and apparatus for automatically and accurately aligning a wafer prober to the bonding pads of a semiconductor device are provided. In one embodiment of one aspect of the invention, a multi-loop feedback control system incorporating information from a number of sensors is used to maintain the desired contact position in the presence of disturbances. Other aspects and other embodiments are also described.
    Type: Application
    Filed: March 4, 2008
    Publication date: June 26, 2008
    Inventors: Uday Nayak, Xiaolan Zhang, George Asmerom, Max Jedda
  • Publication number: 20080150559
    Abstract: A method of moving a substrate to a probe card. The method comprises moving a probe card and a substrate vertically closer to one another employing dynamically changing velocities during the moving. More than two different velocities are used during the moving. The velocities are at zero only at an initial location and a final location. The moving is such that the probe card and the substrate contact each other with a soft impact. The velocities for the moving begin with a high velocity and reduce to a lower velocity so that the contact between the probe card and the substrate us a microtouch impact.
    Type: Application
    Filed: March 4, 2008
    Publication date: June 26, 2008
    Inventors: Uday Nayak, Sun Ya Lei, Lynn Howard Whitney
  • Patent number: 7368929
    Abstract: An improved method and apparatus for automatically and accurately aligning a wafer prober to the bonding pads of a semiconductor device are provided. In one embodiment of one aspect of the invention, a multi-loop feedback control system incorporating information from a number of sensors is used to maintain the desired contact position in the presence of disturbances. Other aspects and other embodiments are also described.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: May 6, 2008
    Assignee: Electroglas, Inc.
    Inventors: Uday Nayak, Xiaolan Zhang, George Asmerom, Max Jedda
  • Publication number: 20080100321
    Abstract: Improved methods and apparatuses for automatically and accurately maintaining the alignment of a wafer prober to the bonding pads of a semiconductor device in the presence of motion disturbances are provided. In one embodiment of one aspect of the invention, a feedback control system incorporating information from a number of acceleration and/or velocity sensors is used to maintain the desired contact position in the presence of motion disturbances. Other aspects and other embodiments are also described.
    Type: Application
    Filed: October 18, 2007
    Publication date: May 1, 2008
    Inventors: Uday Nayak, Richard Casler, Max Jedda
  • Patent number: 7362116
    Abstract: A method of moving a substrate to a probe card. The method includes moving a probe card and a substrate vertically closer to one another employing dynamically changing velocities during the moving. More than two different velocities are used during the moving. The velocities are at zero only at an initial location and a final location. The moving is such that the probe card and the substrate contact each other with a soft impact. The velocities for the moving begin with a high velocity and reduce to a lower velocity so that the contact between the probe card and the substrate has a microtouch impact.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: April 22, 2008
    Assignee: Electroglas, Inc.
    Inventors: Uday Nayak, Sun Ya Lei, Lynn Howard Whitney
  • Patent number: 7352198
    Abstract: Improved methods and apparatuses for automatically and accurately maintaining the alignment of a wafer prober to the bonding pads of a semiconductor device in the presence of motion disturbances are provided. In one embodiment of one aspect of the invention, a feedback control system incorporating information from a number of acceleration and/or velocity sensors is used to maintain the desired contact position in the presence of motion disturbances. Other aspects and other embodiments are also described.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: April 1, 2008
    Assignee: Electroglas, Inc.
    Inventors: Uday Nayak, Richard James Casler, Jr., Max Jedda
  • Patent number: 7345466
    Abstract: A cleaning device for use in a semiconductor processing. The device comprises a substrate supporter for supporting a substrate to be cleaned, a scrub pad mounting plate, and a chuck coupling to the substrate supporter and the scrub pad mounting plate. The chuck is configured to move the substrate supporter and the scrub pad mounting plate. The device further comprises a scrub pad mountable to and moveable from the scrub pad mounting plate. The scrub pad, when mounted to the scrub pad mounting plate, is higher than the substrate when mounted on the substrate supporter. The scrub pad mounting plate and the substrate supporter can both be coupled to the chuck so that the chuck moves both the scrub pad mounting plate and the substrate supporter in one action.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: March 18, 2008
    Assignee: Electroglas, Inc.
    Inventors: Michael Vogtmann, Rolf Hagenlocher, Uday Nayak
  • Publication number: 20070164760
    Abstract: Improved methods and apparatuses for automatically and accurately maintaining the alignment of a wafer prober to the bonding pads of a semiconductor device in the presence of motion disturbances are provided. In one embodiment of one aspect of the invention, a feedback control system incorporating information from a number of acceleration and/or velocity sensors is used to maintain the desired contact position in the presence of motion disturbances. Other aspects and other embodiments are also described.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Uday Nayak, Richard Casler, Max Jedda
  • Publication number: 20070164762
    Abstract: An improved method and apparatus for automatically and accurately aligning a wafer prober to the bonding pads of a semiconductor device are provided. In one embodiment of one aspect of the invention, a multi-loop feedback control system incorporating information from a number of sensors is used to maintain the desired contact position in the presence of disturbances. Other aspects and other embodiments are also described.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Uday Nayak, Xiaolan Zhang, George Asmerom, Max Jedda
  • Publication number: 20070028946
    Abstract: A cleaning device for use in a semiconductor processing. The device comprises a substrate supporter for supporting a substrate to be cleaned, a scrub pad mounting plate, and a chuck coupling to the substrate supporter and the scrub pad mounting plate. The chuck is configured to move the substrate supporter and the scrub pad mounting plate. The device further comprises a scrub pad mountable to and moveable from the scrub pad mounting plate. The scrub pad, when mounted to the scrub pad mounting plate, is higher than the substrate when mounted on the substrate supporter. The scrub pad mounting plate and the substrate supporter can both be coupled to the chuck so that the chuck moves both the scrub pad mounting plate and the substrate supporter in one action.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 8, 2007
    Inventors: Michael Vogtmann, Rolf Hagenlocher, Uday Nayak