Patent · US Active

BAW resonator and resonator arrangement

US11012053B2 · kind B2 · utility

0Cited by

5References

11Claims

0Family size

Assignee

SnapTrack, Inc. · US

Inventors

Maximilian SCHIEK · Puchheim, DE
Gilles Moulard · Munich, DE
Monika Schmiedgen · Olching, DE
Andre SCHWÖBEL · Hanau, DE

Key dates

Filing date	Dec 1, 2017
Grant date	May 18, 2021
Priority date	—
Expiry date	Dec 1, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/542
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A filter comprising first and second BAW resonators. The first BAW resonator having a piezoelectric layer, located between a top electrode and a bottom electrode, and a dielectric layer located between the bottom electrode and an additional electrode. Wherein the dielectric layer, the bottom electrode and the additional electrode are configured to provide an additional capacitance in the resonator. The second BAW resonator having at least one less electrode than the first BAW resonator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.