US Patent Issued to MURATA MANUFACTURING on Oct. 20 for "Acoustic wave device" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,772,739, issued on Oct. 20, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Acoustic wave device" was invented by Kentaro Nakamura (Nagaokakyo, Japan) and Tetsuya Kimura (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device includes a scandium-containing aluminum nitride film (ScAlN film), and an electrode on the ScAlN film. The ScAlN film includes at least one portion where a crystal orientation toward 90deg from a crystal c-axis direction is rotated about 30degplus-minus5deg or rotated about 15degplus-minus5deg, the crystal c-axis direction being a film thickness direction of the ScAlN film or substan...