Patent ID: 8154178

Claim:
A piezoelectric device, comprising: a frame made of a piezoelectric material and comprising a vibrating piece connected to an outer frame portion that surrounds the vibrating piece, the vibrating piece including at least one excitation electrode, and the outer frame portion having a first surface and a second surface and including a respective extraction electrode connected to each excitation electrode; a package base having an interior surface and an external surface, the interior surface being bonded to the first surface of the outer frame portion, the package base including a respective connection electrode connected to each extraction electrode, a respective external terminal on the external surface, and a respective through-hole extending from the interior surface to the external surface, the through-hole including a conductor connecting the respective connection electrode to the respective external terminal; and a lid having an exterior surface and an internal surface, the interior surface being bonded to the second surface of the piezoelectric frame; wherein the piezoelectric frame defines a respective exhaust channel on each extraction electrode adjacent the respective through-hole conductor.