Patents by Inventor Ronald Dunham

Ronald Dunham 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).

  • Lapping of gold pads in a liquid medium for work hardening the surface of the pads
    Patent number: 7538035
    Abstract: A method for work hardening gold contact pads is disclosed. The method includes providing gold contact pads, providing lapping pads, and placing the lapping pads in contact with the gold contact pads to create a contact interface. A liquid medium is then applied to the contact interface while moving the lapping pads relative to the gold contact pads. The liquid medium is preferably a particulate-free pH neutral liquid, which makes water a good choice. Also disclosed is a gold pad having a work hardened surface.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: May 26, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Ronald Dunham, Wolfgang Goubau, Bhargav Patel, Marvin Wong, John Jaekoyun Yang
  • Lapping of gold pads in a liquid medium for work hardening the surface of the pads
    Publication number: 20060211247
    Abstract: A method for work hardening gold contact pads is disclosed. The method includes providing gold contact pads, providing lapping pads, and placing the lapping pads in contact with the gold contact pads to create a contact interface. A liquid medium is then applied to the contact interface while moving the lapping pads relative to the gold contact pads. The liquid medium is preferably a particulate-free pH neutral liquid, which makes water a good choice. Also disclosed is a gold pad having a work hardened surface.
    Type: Application
    Filed: March 18, 2005
    Publication date: September 21, 2006
    Inventors: Ronald Dunham, Wolfgang Goubau, Bhargav Patel, Marvin Wong, John Yang