ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,377, issued on Nov. 3, was assigned to DB HITEK Co. LTD. (Gangnam-gu, South Korea).
"Pillar structure including branched upper peripheral pillars and super junction semiconductor device including the same" was invented by Yong Sin Han (Seo-gu, South Korea) and Myeong Bum Pyun (Namdong-gu, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pillar structure of a super junction semiconductor device includes a semiconductor layer having a first conductivity type and pillars having a second conductivity type. The semiconductor layer includes an active region and a peripheral region surrounding the active region. The pillars extend in a vertical ...