Piezoelectric resonator, e.g. in mobile telephones, has a piezoelectric layer with a first resonance frequency temperature coefficient with a first polarity sign and electrodes
摘要
<p>A piezoelectric layer (PL) (11) fits between first (7a) and second (7b) electrodes. A compensating layer (13) fits between the first electrode and the PL. Compensating material has a second resonance frequency temperature coefficient with a second polarity sign (PS) opposed to a first PS. An independent claim is also included for a method for producing a piezoelectric resonator.</p>
