Patent ID: 11923821
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. An acoustic filter device comprising:
at least one piezoelectric plate including a plurality of diaphragms; and
a conductor pattern at the at least one piezoelectric plate, the conductor pattern comprising interdigital transducers (IDTs) of a plurality of acoustic resonators that each have interleaved parallel fingers at a respective diaphragm of the plurality of diaphragms,
wherein, for one or more of the IDTs, a width of either one of two adjacent parallel fingers is greater than or equal to 0.2 times a center-to-center spacing between the two adjacent parallel fingers and less than or equal to 0.3 times the center-to-center spacing between the two adjacent parallel fingers.