Longitudinally leaky surface acoustic wave device with double side acoustic mirror

An acoustic wave device comprising:

• a first substrate;
• a first solid acoustic mirror over the first substrate;
• a piezoelectric layer positioned over the first solid acoustic mirror;
• an interdigital transducer electrode at least partially embedded in the piezoelectric layer, the interdigital transducer electrode configured to generate an acoustic wave having a wavelength of L;
• and
• a second solid acoustic mirror over the piezoelectric layer, at least a second substrate over the second solid acoustic mirror, a third solid acoustic mirror over the second substrate, a second piezoelectric layer over the third solid acoustic mirror, and a second interdigital transducer electrode at least partially embedded in the second piezoelectric layer.

A longitudinally leaky surface acoustic wave device comprising:

• a support substrate;
• a first solid acoustic mirror over the support substrate;
• a piezoelectric layer positioned over the first solid acoustic mirror and the piezoelectric layer has a cut angle of (90±30, 90±30, 40+30);
• an interdigital transducer electrode at least partially embedded in the piezoelectric layer, the interdigital transducer electrode configured to generate an acoustic wave having a wavelength of L;
• and
• a second solid acoustic mirror over the piezoelectric layer, the first solid acoustic mirror and the second solid acoustic mirror arranged to confine acoustic energy of the acoustic wave.

An acoustic wave component comprising:

• a first substrate;
• a first solid acoustic mirror positioned on the first substrate;
• a first piezoelectric layer positioned over the first solid acoustic mirror;
• an interdigital transducer electrode positioned over the first piezoelectric layer;
• a second solid acoustic mirror positioned over the interdigital transducer electrode, the first solid acoustic mirror and the second solid acoustic mirror arranged to confine acoustic energy of an acoustic wave;
• a second substrate positioned over the second solid acoustic mirror, the first and second solid acoustic mirrors being positioned between the first and second substrates, the first and second substrates arranged to dissipate heat associated with the acoustic wave;
• and
• a third solid acoustic mirror positioned over the second substrate, a second piezoelectric layer on the third solid acoustic mirror, and a second interdigital transducer electrode positioned over the second piezoelectric layer.