Patents by Inventor Phillip J. Spletter

Phillip J. Spletter 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).

  • Patent number: 5008512
    Abstract: A method is disclosed for laser bonding two highly reflective electrical members. The first electrical member is coated with a material that is well absorbent of laser energy at the laser beam wavelength, has a lower melting point than either the first or second electrical members, and has a low solubility in a solid alloy of the electrical members. The laser characteristics are selected so that as bonding occurs an alloy of the electrical members solidifies and a solidification front drives the molten coating and molten compounds containing the coating away from the bond interface towards the exterior periphery of the bond, and substantially all of the solidified bond interface consists of an alloy of the first and second members. The coating can also aid in wetting the bond interface. In one example a copper electrical member coated with tin is bonded to a gold electrical member using a pulsed YAG laser with a beam diameter of 0.002 inches, a wavelength of 1.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: April 16, 1991
    Assignee: Microelectronics and Computer Technology Corporation
    Inventors: Phillip J. Spletter, Colin A. MacKay