ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,251, issued on May 12, was assigned to SAMSUNG SDI Co. LTD. (Yongin-si, South Korea).

"CMP slurry composition for patterned tungsten wafer and method of polishing patterned tungsten wafer using the same" was invented by Ji Ho Lee (Suwon-si, South Korea), Young Gi Lee (Suwon-si, South Korea), Soo Yeon Sim (Suwon-si, South Korea), Hyun Woo Lee (Suwon-si, South Korea) and Jong Won Lee (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A CMP slurry composition for patterned tungsten wafers and a method of polishing patterned tungsten wafers using the same, the CMP slurry composition includes a solvent; an abrasive; and a non-dendrimeri...