PIEZOELECTRIC DEVICE AND TEMPERATURE COMPENSATING CIRCUIT CHIP FOR PIEZOELECTRIC DEVICE

摘要

PROBLEM TO BE SOLVED: To more downsize a piezoelectric device. SOLUTION: A temperature compensation type piezoelectric oscillator has a piezoelectric vibration chip and a capacitor array chip 38 composed of a plurality of capacitor elements electrically connected to the piezoelectric vibration chip. The capacitor array chip 38 has a trimming window 50 on an active surface. In the trimming window 50, a trimming section 52 provided in a wiring pattern of at least some of the plurality of capacitor elements constituting the capacitor array chip 38 is exposed and can be cut by a laser. COPYRIGHT: (C)2007,JPO&INPIT