Patents by Inventor King M. Chu

King M. Chu 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: 8629688
    Abstract: A method for performing corrosion testing is provided. The method includes applying a thin film of silicone to an electrical device to be tested, positioning the device in a chamber, connecting the device to electrical testing equipment for determining any change in electrical resistance of the device, and disposing a gaseous compound of sulfur in the chamber. The method also comprises monitoring the device for any change in electrical resistance for indicating failure of the device.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: January 14, 2014
    Assignee: International Business Machines Corporation
    Inventors: King M. A. Chu, Steven R. Nickel, Timothy J. Tofil
  • Publication number: 20120074968
    Abstract: A method for performing corrosion testing is provided. The method includes applying a thin film of silicone to an electrical device to be tested, positioning the device in a chamber, connecting the device to electrical testing equipment for determining any change in electrical resistance of the device, and disposing a gaseous compound of sulfur in the chamber. The method also comprises monitoring the device for any change in electrical resistance for indicating failure of the device.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 29, 2012
    Applicant: International Business Machines Corporation
    Inventors: King M. A. Chu, Steven R. Nickel, Timothy J. Tofil
  • Patent number: 7285962
    Abstract: A system for injecting noise signals onto power generated by a power source comprising: a voltage source; a device under test having a power input in operable communication with the noise introduction apparatus; and a noise introduction apparatus interposed between the power source and device under test in operable communication with the voltage source, the noise introduction apparatus comprising, a switching device configured to provide a low impedance conductive path when commanded, and a current limiting device in series with the switching device, the current limiting device configured to provide a low impedance conductivity for a selected current and a selected duration. The switching device and current limiting device cooperate to shunt the voltage source to the power input.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: October 23, 2007
    Assignee: International Business Machines Corporation
    Inventors: Joseph W. Bogdanski, King M. Chu, William M. Lorenz, Tuan D. Ngo, Andrew Rybak, Kwok M. Soohoo, Gerard V. Weber, Jr., William T. Winkler
  • Patent number: 6636065
    Abstract: An exemplary embodiment is a system and method for a device reliability test circuit. The method includes applying a DC voltage across the device for a period, wherein the DC voltage is less than the rated voltage of said device, and determining a failure point of the device based on applying the DC voltage.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: October 21, 2003
    Assignee: International Business Machines Corporation
    Inventors: George T. Galyon, King M. Chu, Jeffrey A. Newcomer, Prabjit Singh
  • Publication number: 20030001607
    Abstract: An exemplary embodiment is a system and method for a device reliability test circuit. The method includes applying a DC voltage across the device for a period, wherein the DC voltage is less than the rated voltage of said device, and determining a failure point of the device based on applying the DC voltage.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 2, 2003
    Applicant: International Business Machines Corporation
    Inventors: George T. Galyon, King M. Chu, Jeffrey A. Newcomer, Prabjit Singh
  • Patent number: 6396286
    Abstract: The power supply of equipment being tested for common mode noise problems is connected to a source of power with the power and neutral input terminals of the power supply isolated from the power ground. Recorded common mode noise signals are then inserted between the power supply's neutral input terminal and power ground to produce problem conditions. When the cause of the problem conditions are identified, steps are taken to eliminate the condition.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: May 28, 2002
    Assignee: International Business Machines Corporation
    Inventors: King M. Chu, William M. Lorenz, Tuan D. Ngo, Prabjit Singh, Gerald J. Fahr, John P. McConnell