Patent · US Expired

Piezoelectric resonator device having detuning layer sequence

US6864619B2 · kind B2 · utility

110Cited by

9References

23Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Robert Aigner · Winter Garden, US
Elbrecht Lueder · Munich, DE
Stephan Marksteiner · Putzbrunn, DE
Winfried Nessler · Munich, DE

Key dates

Filing date	Nov 18, 2003
Grant date	Mar 8, 2005
Priority date	—
Expiry date	Nov 18, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2003/0428
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A resonator device includes a piezoelectric resonator having a detuning layer sequence arranged on the piezoelectric resonator. The detuning layer sequence includes at least a first layer having a high acoustic impedance and a second layer having a low acoustic impedance.

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