Patent ID: 8476811

Claim:
A piezoelectric device, comprising: a piezoelectric frame surrounding and formed as one unit with a piezoelectric vibrating piece, said piezoelectric frame and vibrating piece having opposed first and second principal surfaces and a pair of first castellations formed on a peripheral edge of said piezoelectric frame, said piezoelectric vibrating piece comprising first and second excitation electrodes formed on each of said first and second principal surface of said vibrating piece, a first extraction electrode formed on said first principal surface and extending from said first excitation electrode to a first side surface electrode on one of said pair of first castellations, and a second extraction electrode formed on said second principal surface and extending from said second excitation electrode to a second side surface electrode formed on the other of said pair of first castellations; a package base having opposed first and second surfaces and a pair of second castellations formed on a peripheral edge of said package base and including a third side surface electrode formed on one of said second castellations and a fourth side surface electrode formed on the other of said second castellations, the first surface of said package base is bonded to the first principal surface of said piezoelectric frame by nonconductive adhesive; and a package lid bonded to the second principal surface of said piezoelectric frame for sealing the piezoelectric vibrating piece with the package base; wherein first and second connection electrodes are formed spanning adjacent first and second castellations to electrically connect said first extraction and first side surface electrodes on said piezoelectric frame to said third side surface electrode on said base and electrically connect said second extraction and second side surface electrodes on said piezoelectric frame to said fourth side surface electrode on said base, respectively.