| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crystal device for which a CI value is reduced by regulating the shortest distance between an end of a conductive adhesive and an end of an excitation electrode. <P>SOLUTION: The crystal device comprises: a rectangular crystal plate (130) having a long side and a short side; a pair of excitation electrodes (131) formed on a front side and rear side of the crystal plate, respectively; a pair of electrode pads (132) formed by extending to the short side of the crystal plate and conducted with the excitation electrodes, respectively; a package (120) having a pair of mounting terminals (125) formed on a mounting surface and a pair of connecting terminals (124) formed on a bottom surface (126b) on the opposite side of the mounting surface and conducted with the mounting terminals; and a conductive adhesive (141) for bonding the connecting terminals and the electrode pads and fixing the crystal plate to the package. The shortest distance between the end of the conductive adhesive and the end of the excitation electrodes is 10% to 15% length of a length (L1) in a long side direction of the crystal plate. <P>COPYRIGHT: (C)2013,JPO&INPIT |
