ALEXANDRIA, Va., March 24 -- United States Patent no. 12,588,521, issued on March 24, was assigned to Wolfspeed Inc. (Durham, N.C.).

"Metal nitride core-shell particle die-attach material" was invented by Afshin Dadvand (Durham, N.C.) and Devarajan Balaraman (Apex, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Die attach materials are provided. In one example, the die-attach material includes a plurality of core-shell particles. Each core-shell particle includes a core and a shell on the core. The core includes a conducting material. The shell includes a metal nitride."

The patent was filed on Feb. 15, 2023, under Application No. 18/169,518.

*For further information, including images, charts and tabl...