Surface-mount type crystal oscillator

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

2009-02-13

2011-10-04

Gannon, Levi (Department: 2817)

Oscillators

With outer casing or housing

C331S10800D, C331S158000, C310S348000

Reexamination Certificate

active

08031013

ABSTRACT:
A surface-mount type crystal oscillator includes: a container body with a first recess and a second recess; a crystal blank including excitation electrodes on respective principal surfaces thereof and hermetically encapsulated in the first recess; and an IC chip which is accommodated in the second recess and into which at least an oscillation circuit using the crystal blank is integrated. The container body includes a bottom wall and a frame wall provided on the bottom wall. Two openings which make up the first and second recesses, respectively, are formed in juxtaposition in the frame wall. A pair of inspection terminals are provided in an area of a top surface of the frame wall which surrounds the second recess. The inspection terminals are electrically connected to the excitation electrodes of the crystal blank.

REFERENCES:
patent: 4750246 (1988-06-01), Pollard
patent: 4873495 (1989-10-01), Doyen et al.
patent: 5446954 (1995-09-01), Knecht et al.
patent: 5952894 (1999-09-01), Fukiharu
patent: 6531807 (2003-03-01), Tanaka et al.
patent: 7123108 (2006-10-01), Isimaru
patent: 7489208 (2009-02-01), Moriya
patent: 9-83248 (1997-03-01), None
patent: 2002-330027 (2002-11-01), None
patent: 2002-335128 (2002-11-01), None
patent: 2003-32042 (2003-01-01), None
patent: 2003-51719 (2003-02-01), None
patent: 2004-7469 (2004-01-01), None
patent: 2005-65140 (2005-03-01), None
Japanese Rejection Notice dated Apr. 22, 2010, from the corresponding Japanese Application.

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