A method is provided for fabricating a piezoelectric vibrator without degrading vibration characteristics. The piezoelectric vibrator has a vibration plate formed with a piezoelectric vibration portion and a frame portion integrally connected with a base portion of the piezoelectric vibration portion...http://www.google.es/patents/US6606772?utm_source=gb-gplus-sharePatente US6606772 - Method for manufacturing piezoelectric oscillator
