Surface acoustic wave element, method of manufacturing the...

Details Surface acoustic wave element, method of manufacturing the... Surface acoustic wave element, method of manufacturing the...

2008-04-01

2008-04-01

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S31300R, C310S31300R, C310S361000

Reexamination Certificate

active

07352104

ABSTRACT:
A surface acoustic wave element is provided including an IDT and reflectors provided on both sides of the IDT that are on a surface of a quartz plate. The quartz plate is made from an in-plane rotated ST cut quartz plate whose cutting angle is expressed as (0°, 113°-135°, ±(40°-49°)) by defining and using Euler angle. The IDT and reflectors are arranged at a slant of PFA±3° with respect to a direction of a phase velocity of a surface acoustic wave in the quartz plate. If the cutting angle of the quartz plate is expressed by the Euler angle (φ°, θ°, Ψ°), the power flow angle PFA is expressed that the PFA=0.374 (θ°−90°)−10.0°.

REFERENCES:
patent: 3974463 (1976-08-01), Onodera
patent: 4223286 (1980-09-01), Ono et al.
patent: 4521751 (1985-06-01), Riha et al.
patent: 4916348 (1990-04-01), Beggs et al.
patent: 5895996 (1999-04-01), Takagi et al.
patent: 6316861 (2001-11-01), Ballandras et al.
patent: 2003/0030513 (2003-02-01), Yamazaki et al.
patent: 2003/0052572 (2003-03-01), Iizawa et al.
patent: 1 292 023 (2003-03-01), None
patent: 1292023 (2003-03-01), None
patent: WO96/10293 (1996-04-01), None
Communication from European Patent Office regarding counterpart application, no date given.
Communication from European Patent Office regarding counterpart application, no date given.

Affiliated with

Also associated with

Rating

Surface acoustic wave element, method of manufacturing the... 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 acoustic wave element, method of manufacturing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface acoustic wave element, method of manufacturing the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2780408