Patent ID: 11929739
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A package encapsulating multiple bulk acoustic wave filters, the package comprising:
a first filter die supported by a packaging substrate and including a first bulk acoustic wave filter, the first bulk acoustic wave filter including a first plurality of bulk acoustic wave resonators with raised frame structures;
a second filter die supported by the packaging substrate and including a second bulk acoustic wave filter, the second bulk acoustic wave filter including a second plurality of bulk acoustic wave resonators with raised frame structures, a first frequency differential between two operating frequencies of the first plurality of bulk acoustic wave resonators being equal to a second frequency differential between two operating frequencies of the second plurality of bulk acoustic wave resonators;
at least first, second, and third internal interconnect structures that provide electrical connections between a first surface of the packaging substrate and an internal surface of the first and second filter dies, at least one conductive trace on the first surface of the packaging substrate provides a shared electrical connection for the first and second filters; and
a cover sealed around a periphery of the first surface of the packaging substrate to form a package encapsulating the first and second filter dies.