US Patent Issued to UNISANTIS ELECTRONICS SINGAPORE on June 2 for "Pillar-shaped semiconductor device and method for producing the same" (Japanese, Singaporean Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,648,124, issued on June 2, was assigned to UNISANTIS ELECTRONICS SINGAPORE PTE. LTD. (Singapore).

"Pillar-shaped semiconductor device and method for producing the same" was invented by Nozomu Harada (Tokyo), Kenichi Kanazawa (Tokyo) and Yisuo Li (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forming a first impurity region 3 connected to lower portions of first semiconductor pillars and second impurity regions 4a and 4b connected to lower portions of second semiconductor pillars includes forming a semiconductor layer 100 having an impurity concentration lower than an impurity concentration of each of the first impurity region 3 an...