Patents by Inventor Prem N. Batra

Prem N. Batra 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).

  • Laser debridging of microelectronic solder joints
    Patent number: 4877175
    Abstract: A solder bridge between leads of a microelectronic circuit is removed by projecting a laser beam onto the solder bridge with sufficient power to cause the solder forming the bridge to melt and to flow onto a wicking tool placed into contact with the solder bridge. The wicking tool is removed during the heating to remove the solder and debridge the leads. Microelectronic leads having a width of the order of 4 mils and a pitch of the order of 8 mils may be debridged easily using the invention.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: October 31, 1989
    Assignee: General Electric Company
    Inventors: Marshall G. Jones, Prem N. Batra