ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,578, issued on May 13, was assigned to TriPent Power LLC (San Diego).

"Aluminum nitride multilayer power module interposer and method" was invented by Stephen P. Nootens (San Diego), Frank J. Polese (San Diego) and Steven S. Scrantom (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power electronic interposer (10) for mounting a number of power transistor integrated circuit dice (14) can be made from a multi-layer ceramic process to provide an aluminum nitride body (11) having internal tungsten traces (30-35) to electrically connect die bond pads (17,18) to interposer contact pads (25,26) allowing connection to circuitry off of the interp...