18897043. RESONATOR WITH OPTIMIZED LAYER THICKNESSES (Murata Manufacturing Co., Ltd.)
RESONATOR WITH OPTIMIZED LAYER THICKNESSES
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
John P. Koulakis of Los Angeles CA US
Garrett Williams of San Mateo CA US
RESONATOR WITH OPTIMIZED LAYER THICKNESSES
This abstract first appeared for US patent application 18897043 titled 'RESONATOR WITH OPTIMIZED LAYER THICKNESSES
Original Abstract Submitted
An acoustic resonator is provided that includes an interdigital transducer (IDT) at a surface of at least one piezoelectric layer, the IDT including interleaved IDT fingers extending from first and second busbars respectively. Moreover, a ratio of a thickness of the IDT fingers to a thickness of the at least one piezoelectric layer is optimized to minimize unwanted spurs. The mark to pitch ratio of the IDT fingers may also be optimized to minimize spurs during operation.
