Surface-mount crystal oscillator

Details Surface-mount crystal oscillator Surface-mount crystal oscillator

2011-01-18

2011-01-18

Pascal, Robert (Department: 2817)

Oscillators

With outer casing or housing

C331S158000

Reexamination Certificate

active

07872537

ABSTRACT:
A surface-mount crystal oscillator includes: a crystal blank; an IC chip in which at least an oscillation circuit using the crystal blank is integrated, a plurality of IC terminals are provided on one principal surface, and a plurality of mounting terminals for surface mounting are provided on the other principal surface; and a housing member joined to the one principal surface of the IC chip and formed into a recessed shape. The crystal blank is fixed to crystal connection terminals out of the IC terminals, and is hermetically encapsulated in a space formed by the IC chip and the housing member. At least a power supply terminal, an output terminal and a ground terminal out of the IC terminals are electrically connected to the mounting terminals by a through-electrode provided to penetrate through the IC chip.

REFERENCES:
patent: 7034441 (2006-04-01), Ono et al.
patent: 2006/0055479 (2006-03-01), Okazaki et al.
patent: 2007/0120614 (2007-05-01), Moriya et al.
patent: 2005-311769 (2005-11-01), None

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