ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,570, issued on May 27, was assigned to UNISANTIS ELECTRONICS SINGAPORE PTE. LTD. (Singapore).
"Semiconductor element memory device" was invented by Koji Sakui (Tokyo) and Nozomu Harada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor-element-including semiconductor memory device includes a block in which a plurality of memory cells CL00 to CL13 are arranged in a matrix, in which a data retention operation is performed in which voltages applied to plate lines PL0 and PL1, word lines WL0 and WL1, a source line SL, and bit lines BL0 to BL3 are controlled to retain a group of positive holes, generated by an impact ionization phenome...