Patents by Inventor Ho Chee-Wah

Ho Chee-Wah 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).

  • Contactor with angled spring probes
    Patent number: 9766268
    Abstract: A spring probe contactor includes an angled spring probe configuration that causes the tips of the spring probes to “swipe” the contact pads/solder balls of an IC device under test as the contacts are made. The angulation of the spring probes permit penetration through foreign material layers on the pad/ball surfaces with less contact force.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 19, 2017
    Assignee: Essai, Inc.
    Inventors: Nasser Barabi, Oksana Kryachek, Ho Chee-Wah
  • Contactor with angled spring probes
    Publication number: 20080150569
    Abstract: A spring probe contactor includes an angled spring probe configuration that causes the tips of the spring probes to “swipe” the contact pads/solder balls of an IC device under test as the contacts are made. The angulation of the spring probes permit penetration through foreign material layers on the pad/ball surfaces with less contact force.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Inventors: Nasser Barabi, Oksana Kryachek, Ho Chee-Wah