18528673. PIEZOELECTRIC TRANSDUCER WITH DIFFERENT POLING DIRECTIONS (TEXAS INSTRUMENTS INCORPORATED)

PIEZOELECTRIC TRANSDUCER WITH DIFFERENT POLING DIRECTIONS

Organization Name

TEXAS INSTRUMENTS INCORPORATED

Inventor(s)

Bichoy Bahr of Allen TX (US)

PIEZOELECTRIC TRANSDUCER WITH DIFFERENT POLING DIRECTIONS

This abstract first appeared for US patent application 18528673 titled 'PIEZOELECTRIC TRANSDUCER WITH DIFFERENT POLING DIRECTIONS

Original Abstract Submitted

A transducer device is described that includes a substrate having an opening, and a cantilever device having a first end on the substrate and a second end suspended over the opening. In at least one example, the cantilever device includes a first piezoelectric layer having a first surface, the first piezoelectric layer having a first poling direction. The cantilever device further includes a second piezoelectric layer having a second surface opposing the first surface, the second piezoelectric layer having a second poling direction, the second poling direction being different from the first poling direction. The cantilever device further includes a first electrode on the first surface, and a second electrode on the second surface.