Patent ID: 9030081
Filing Date: 2015-05-12
Classification: H03H

Abstract:
1. A piezoelectric device, comprising: a first piezoelectric oscillating plate having a first length in a predetermined direction, or a second piezoelectric oscillating plate having a second length shorter than the first length in the predetermined direction, wherein the first piezoelectric oscillating plate comprises a pair of excitation electrodes and a pair of extraction electrodes respectively extending from the pair of excitation electrodes toward a side and an opposite side of the first piezoelectric oscillating plate, the second piezoelectric oscillating plate comprises a pair of excitation electrodes and a pair of extraction electrodes respectively extending from the pair of excitation electrodes toward a side and an opposite side of the second piezoelectric oscillating plate, the pair of extraction electrodes are respectively electrically connected with connection electrodes disposed at two sides in a package in the predetermined direction via an electrically-conductive adhesive agent, the package comprises carrier sections for carrying the first or the second piezoelectric oscillating plate thereon, the carrier sections are respectively formed at one side and the other side in the predetermined direction, and the connection electrodes are respectively formed on at least a portion of surfaces of the carrier sections, wherein, when the extraction electrodes of the first piezoelectric oscillating plate are respectively electrically connected with the connection electrodes, the excitation electrode on one side of the first piezoelectric oscillating plate is not electrically connected with the connection electrode that connects the extraction electrode extending from the excitation electrode on an other side of the first piezoelectric oscillating plate; and wherein the extraction electrodes of the second piezoelectric oscillating plate are electrically connected with the connection electrodes, the second piezoelectric oscillating plate is not disposed on the connection electrodes, and the electrically-conductive adhesive agent is extended to electrically connect the connection electrodes with the extraction electrodes.