Surface-mount casing and crystal unit using same

Details Surface-mount casing and crystal unit using same Surface-mount casing and crystal unit using same

2005-09-20

2005-09-20

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S365000

Reexamination Certificate

active

06946778

ABSTRACT:
A surface-mount casing for accommodating a quartz crystal blank to constitute a quartz crystal unit has a casing body, a pair of first connecting terminals disposed on respective paired diagonal corners of an inner bottom surface of the casing body, and a pair of second connecting terminals disposed on respective other paired diagonal corners of the inner bottom surface of the casing body. The second connecting terminals extend more closely to a center of the inner bottom surface than the first connecting terminals. The first connecting terminals are thicker than the second connecting terminals. A crystal blank having a pair of excitation electrodes and a pair of extension electrodes extending to outer peripheral portions from the excitation electrodes is held with the extension electrodes being electrically and mechanically connected to either the first connecting electrodes or the second connecting electrodes depending on the size of the crystal blank.

REFERENCES:
patent: 5525855 (1996-06-01), Gotoh et al.
patent: 6117355 (2000-09-01), Yoshizawa et al.

Affiliated with

Also associated with

Rating

Surface-mount casing and crystal unit using same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface-mount casing and crystal unit using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface-mount casing and crystal unit using same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3441344