ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,151, issued on April 21, was assigned to Rambus Inc. (San Jose, Calif.).
"Address mapping for improved reliability" was invented by Steven C. Woo (Saratoga, Calif.) and Taeksang Song (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The internal row addressing of each DRAM on a module is mapped such that row hammer affects different neighboring row addresses in each DRAM. Because the external row address to internal row address mapping scheme ensures that each set of neighboring rows for a given externally addressed row is different for each DRAM on the module, row hammering of a given externally addressed row spreads the row hammeri...