| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a surface mount crystal vibrator with high corrosion resistance. <P>SOLUTION: The piezoelectric vibrator is constituted of a crystal vibrator chip 11, a crystal vibration plate 12 integrally connected with a base part of the crystal vibrator chip 11 and having a frame-shaped part that surrounds the vibrator chip, an excitation electrode 16, a pair of caps 14 that is joined via joining films 17, 18 to be connected with the excitation electrode and tightly seals the excitation electrode, lead electrodes 19, 20 arranged on the surface of the caps and a fluorocarbon resin layer that covers the exposed parts of the joining films. <P>COPYRIGHT: (C)2003,JPO |
