Patents by Inventor Hanwu Xiao

Hanwu Xiao 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).

  • Leakage detection method using micromachined-thermal-convection accelerometer
    Patent number: 8011226
    Abstract: A method and device for identifying leaks in or a leakage rate of an integrated circuit package. The method and device include integrating a micromachined-thermal-convection accelerometer in the integrated circuit package and evaluating the initial and subsequent sensitivities of the accelerometer. A change in sensitivity with time provides indicia of a leak and a measure of leakage rate.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: September 6, 2011
    Assignee: Memsic, Inc.
    Inventors: Yaping Hua, Zongya Li, Hanwu Xiao
  • Leakage detection method using micromachined-thermal-convection accelerometer
    Publication number: 20100050747
    Abstract: A method and device for identifying leaks in or a leakage rate of an integrated circuit package. The method and device include integrating a micromachined-thermal-convection accelerometer in the integrated circuit package and evaluating the initial and subsequent sensitivities of the accelerometer. A change in sensitivity with time provides indicia of a leak and a measure of leakage rate.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Applicant: MEMSIC, INC.
    Inventors: Yaping Hua, Zongya Li, Hanwu Xiao