Patent ID: 6686219
Filing Date: 2004-02-03
Classification: H01L,H03H,Y10T

Abstract:
A method of fabricating piezoelectric vibrators, comprising the steps of:forming a plurality of vibrators using a first wafer, each of the vibrators having a piezoelectric vibrator piece and a frame integrally connected to a base end portion of the piezoelectric vibrator piece and surrounding the piezoelectric vibrator piece; forming a plurality of electrode patterns each having a pair of excitation electrode films and bond films so that the pair of excitation electrode films is disposed on a respective one of the vibrators and the bond films are disposed on the frame of a respective one of the vibrators and are electrically connected to the pair of excitation electrode films; connecting the electrode patterns to one another using metal films; forming a plurality of lids using a second wafer, each of the lids being formed for sealing a respective one of the piezoelectric vibrator pieces without hampering vibration of the piezoelectric vibrator piece; forming a plurality of bases using a third wafer, each of the bases being formed for sealing a respective one of the piezoelectric vibrator pieces without hampering vibration of the piezoelectric vibrator piece; sandwiching the first wafer by the second wafer and the third wafer and simultaneously bonding the first, second and third wafers by anode bonding; and cutting the bonded first, second and third wafers to form a plurality of piezoelectric vibrators.