Patents Assigned to Lawrence Liveremore National Security, LLC
  • CTE-tuned pyrolytic graphite (PG) substrate to minimize joining stress between laser diode and the substrate
    Patent number: 11177626
    Abstract: A pyrolytic graphite (PG) substrate and laser diode package includes a substrate body having a PG crystalline structure with a basal plane oriented at a pre-determined orientation angle as measured from a longitudinal axis of a heat generating material, such as a laser diode, mounted on a surface of the PG substrate, so that a coefficient of thermal expansion (CTE) of the PG substrate is substantially matched with a CTE of the material.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 16, 2021
    Assignee: Lawrence Liveremore National Security, LLC
    Inventors: Susant Patra, Robert J. Deri, John W. Elmer