Piezoelectric oscillator, portable telephone unit using...

Details Piezoelectric oscillator, portable telephone unit using... Piezoelectric oscillator, portable telephone unit using...

2006-06-06

2006-06-06

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S348000

Reexamination Certificate

active

07057331

ABSTRACT:
To provide a piezoelectric oscillator in which the size in the thickness direction can be made smaller and the space required for mounting can be made smaller, and a portable telephone and electronic equipment using the piezoelectric oscillator, a resonator package accommodating a piezoelectric resonating element therein, and an IC chip fixed onto a rear surface of the resonator package and having an oscillating circuit therein are provided, and an inner lead portions of a lead frame are fixed onto the rear surface of the resonator package and the resonator package and the IC chip are resin molded except for an outer lead portion of the lead frame.

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Ueta, “Mobilecom Demands Surface-Mountable Crystal Units”, IEE Journal of Electronic Engineering, vol. 30, No. 317, May, 1993, pp. 66-68.

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