ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,614, issued on May 13, was assigned to FUJI ELECTRIC Co. LTD. (Kawasaki, Japan).
"Semiconductor device" was invented by Masaharu Yamaji (Matsumoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes: a well region of a second conductivity-type deposited on a surface layer of a semiconductor layer of a first conductivity-type; a breakdown voltage region of the second conductivity-type arranged to surround the well region and having a lower impurity concentration than the well region; a base region of the first conductivity-type arranged to surround the breakdown voltage region; a carrier supply region of the second c...