US Patent Application 18355739. ACOUSTIC WAVE DEVICE simplified abstract
Contents
ACOUSTIC WAVE DEVICE
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
Tetsuya Kimura of San Mateo CA (US)
Filip Iliev of San Francisco CA (US)
Bryant Garcia of Austin TX (US)
ACOUSTIC WAVE DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18355739 titled 'ACOUSTIC WAVE DEVICE
Simplified Explanation
- The patent application describes an acoustic wave device that includes a support substrate, a piezoelectric layer, and an interdigital transducer electrode. - The ratio of the thickness of the piezoelectric layer to the distance between adjacent electrode fingers is less than or equal to 0.5. - The interdigital transducer electrode has an intersection region where adjacent electrode fingers overlap. - Two gap regions are located between the intersection region and the busbars of the electrode. - The I-B gap, which is the dimension in which the multiple electrode fingers extend, is less than or equal to 1.1 times the distance between centers of adjacent electrode fingers in at least one of the two gap regions.
Original Abstract Submitted
An acoustic wave device is provided that includes a support substrate, a piezoelectric layer on the support substrate, and an interdigital transducer electrode. A ratio d/p is less than or equal to approximately 0.5, where d is a thickness of the piezoelectric layer and p is a distance between centers of adjacent electrode fingers of the multiple electrode fingers. The interdigital transducer electrode includes an intersection region in which the adjacent electrode fingers overlap when viewed in a direction in which multiple electrode fingers face each other. Moreover, two gap regions are located between the intersection region and a corresponding one of the two busbars and includes an I-B gap that is a dimension in a direction in which the multiple electrode fingers extend. The I-B gap of at least one of the two gap regions is less than or equal to about 1.1p.
