Surface-mount type crystal oscillator

Details Surface-mount type crystal oscillator Surface-mount type crystal oscillator

2011-01-11

2011-01-11

Chang, Joseph (Department: 2817)

Oscillators

With outer casing or housing

C331S10800D, C331S158000

Reexamination Certificate

active

07868707

ABSTRACT:
The surface-mount type crystal oscillator includes a container body made of laminated ceramics, having a flat bottom wall layer, a frame wall defining a recess and a step portion formed at an inner wall of the recess, a crystal blank fixed to the step portion, an IC chip fixed to an inner bottom surface of the recess and a pair of inspection terminals provided on outer side surfaces of the container body and used to measure a vibration characteristic of the crystal blank. The bottom wall layer is made up of a first layer making up an outer bottom surface of the container body and a second layer between the first layer and the frame wall, and the inspection terminals are formed so as to extend across an end face of the second layer and the outer side surface of the frame wall.

REFERENCES:
patent: 6882232 (2005-04-01), Harima
patent: 2007/0075795 (2007-04-01), Moriya
patent: 10-098151 (1998-04-01), None
patent: 2000-077942 (2000-03-01), None
patent: 2001-007647 (2001-01-01), None
patent: 2003-163540 (2003-06-01), None
patent: 2003-204221 (2003-07-01), None
patent: 2005-065140 (2005-03-01), None
patent: 2007-104075 (2007-04-01), None
patent: 2007-142869 (2007-06-01), None
Japanese Office Action for Japanese Patent Application No. 2007-326709 dated Apr. 22, 2010 with English translation.

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