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    • 9. 发明专利
    • Piezoelectric vibrator and method of fabricating piezoelectric vibrator, and oscillator, electronic apparatus and radio wave timepiece which have piezoelectric vibrator
    • 压电振动器和压电振动器的制造方法以及振动器,具有压电振动器的电子设备和无线电波形时间
    • JP2008160802A
    • 2008-07-10
    • JP2007260565
    • 2007-10-04
    • Seiko Instruments Incセイコーインスツル株式会社
    • KAWADA YASUOOKU SADAONUMATA MICHIYUKI
    • H03H9/10H01L23/04H03B5/30H03H3/02H03H9/02
    • H03H9/1021H01L2224/45144H01L2224/48091Y10T29/42Y10T29/49169Y10T29/49179H01L2924/00014H01L2924/00
    • PROBLEM TO BE SOLVED: To achieve small-sized formation of a piezoelectric vibrator while preventing exciting electrodes provided at both faces of the piezoelectric vibrating piece from being short-circuited to each other and enabling to fabricate the piezoelectric vibrating piece easily. SOLUTION: There is provided a piezoelectric vibrator 1 including a case 3 in a shape of a bottomed cylinder having an opening portion 3a and having conductivity, a ring 12 substantially in a cylindrical shape press-fitted to the opening portion 3a of the case 3 and having conductivity, one piece of a lead 13 inserted to the ring 12 and having an inner lead portion 15 and an outer lead portion 16, a filling member 14 having an insulating property for sealing an interval between the lead 13 and the ring 12 in airtight, and a piezoelectric vibrating piece 2 which is constituted by substantially a plate-like shape arranged at the inside of the case 3 and includes exciting electrodes 8, 9 at both faces thereof and in which the exciting electrode 8 is supported by the inner lead portion 15 by being subjected to bump connection with the inner lead portion 15 of the lead 13 and the exciting electrode 9 is subjected to wire bonding with the ring 12. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了实现压电振动器的小尺寸形成,同时防止设置在压电振动片的两个面处的激励电极彼此短路,并且能够容易地制造压电振动片。 解决方案:提供一种压电振动器1,其包括具有开口部分3a并具有导电性的有底圆筒形状的壳体3,基本上为圆柱形的环12压配合到开口部分3a的开口部分3a 壳体3具有导电性,插入环12中的一片导线13并具有内引线部分15和外引线部分16,具有用于密封引线13和环之间的间隔的绝缘性能的填充部件14 12是密封的,压电振动片2由布置在壳体3的内部的大致板状构成,并且在其两面包括励磁电极8,9,其中激励电极8由 通过与引线13的内部引线部分15和激励电极9进行凸起连接的内部引线部分15与环12进行引线接合。版权所有(C)2008,JPO&INPIT