Crystal oscillator for surface mounting

Details Crystal oscillator for surface mounting Crystal oscillator for surface mounting

2008-04-24

2011-10-04

Chang, Joseph (Department: 2817)

Oscillators

L-c type oscillators

Plural tubes

C331S1070DP, C331S10800D, C331S1160FE, C331S154000, C331S158000

Reexamination Certificate

active

08031023

ABSTRACT:
The crystal oscillator for surface mounting includes: a container body having first and second recesses on both principal surfaces thereof; a crystal blank hermetically encapsulated within the first recess; and an IC chip in which an oscillation circuit using the crystal blank is integrated, the IC chip being accommodated within the second recess. The IC chip is provided with a plurality of IC terminals including a pair of crystal terminals used for electrical connection with the crystal blank. A plurality of mounting electrodes to which the IC terminals are connected through flip-chip bonding are formed on a bottom surface of the second recess in correspondence with the IC terminals. A pair of mounting electrodes corresponding to the pair of crystal terminals are electrically connected to the crystal blank and also formed as a pair of dual-purpose electrodes having greater areas than the other mounting electrodes.

REFERENCES:
patent: 2006/0139115 (2006-06-01), Mizumura et al.
patent: 2009/0195323 (2009-08-01), Harima
patent: 2000-49560 (2000-02-01), None
patent: 2003-163542 (2003-06-01), None
patent: 2006-129187 (2006-05-01), None

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