Patents by Inventor David Alan Hugh Spear

David Alan Hugh Spear 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).

  • Bonding ridge structure laser diodes to substrates
    Patent number: 6075800
    Abstract: A way of bonding a ridge-structure laser diode chip ridge face down on to a substrate with solder is disclosed in which the substrate surface includes a region facing the ridge of the laser that is not wetted by solder, this region being flanked by regions that are wetted and by which the solder bonds the chip to the substrate in a manner that leaves the ridge freely spaced from the substrate surface.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: June 13, 2000
    Assignee: Nortel Networks Corporation
    Inventor: David Alan Hugh Spear