US Patent No. 10,193,523

FILTER CHIP AND METHOD FOR PRODUCING A FILTER CHIP


Patent No. 10,193,523
Issue Date January 29, 2019
Title Filter Chip And Method For Producing A Filter Chip
Inventorship
Assignee SnapTrack, Inc., San Diego, CA (US)

Claim of US Patent No. 10,193,523

1. A filter chip,comprising an interconnection of at least one first and one second resonator operating with bulk acoustic waves,
wherein the first resonator operating with bulk acoustic waves comprises a first piezoelectric layer that is structured in such a way that the first resonator has a lower resonant frequency than the second resonator,
wherein the first piezoelectric layer forms a phononic bandgap structure.