ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,863, issued on Oct. 21, was assigned to WISOL Co. LTD. (Gyeonggi-do, South Korea).
"Bulk acoustic wave resonator and method of manufacturing bulk acoustic wave resonator" was invented by Jin Nyoung Jang (Gyeonggi-do, South Korea), Kang Ho Kim (Gyeonggi-do, South Korea), Yun Sik Choi (Gyeonggi-do, South Korea) and Joon Sung Kwon (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a bulk acoustic wave (BAW) resonator according to an embodiment of the present invention may include: forming a lower electrode above a substrate; forming a nitrogen layer on an upper surface of the lower electrode through nitro...