Patent ID: 11955952
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A filter device, comprising:
a first chip comprising:
a first interdigital transducer (IDT) of a first solidly-mounted resonator on a surface of a first piezoelectric plate having a first thickness, and
a first acoustic Bragg reflector sandwiched between the first piezoelectric plate and a first base;

a second chip comprising:
a second IDT of a second solidly-mounted resonator on a surface of a second piezoelectric plate having a second thickness less than the first thickness, and
a second acoustic Bragg reflector sandwiched between the second piezoelectric plate and a second base; and

a circuit card coupled to the first chip and the second chip, the circuit card comprising at least one conductor for making an electrical connection between the first IDT and the second IDT.