Surface acoustic wave device

Details Surface acoustic wave device Surface acoustic wave device

2007-02-20

2007-02-20

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S31300R, C310S360000, C310S361000, C333S195000, C333S193000

Reexamination Certificate

active

10638327

ABSTRACT:
A surface acoustic wave device includes a LiNbO3substrate with a Euler angle in an area defined by a rectangle having four comers with coordinates (1) (0°, 7°, 101°), (2) (0°, 23°, 79°), (3) (0°, 23°, 79°), and (4) (0°, 7°, 79°), for example, and an electrode film made of Au, wherein surface acoustic waves including a longitudinal wave component as a main component are propagated thereon. The surface acoustic wave device uses longitudinal surface acoustic waves having a phase speed greater than with the “slow transverse wave”, and has a great electromechanical coupling coefficient and small propagation loss, and is suitable for handling high-frequency signals.

REFERENCES:
patent: 5773911 (1998-06-01), Tanaka et al.
patent: 5923231 (1999-07-01), Ohkubo et al.
patent: 6070310 (2000-06-01), Ito et al.
patent: 6317014 (2001-11-01), Kadota
patent: 6356167 (2002-03-01), Kadota et al.
patent: 6600391 (2003-07-01), Kadota et al.
patent: 6661313 (2003-12-01), Naumenko et al.
patent: 6833774 (2004-12-01), Abbott et al.
patent: 6865786 (2005-03-01), Nakao et al.
patent: 6914498 (2005-07-01), Kadota
patent: 2002/0079989 (2002-06-01), Kadota et al.
patent: 08-288788 (1996-11-01), None
patent: 2001085971 (2001-03-01), None
Shigetaka Tonami et al.; “Characteristics of Leaky Surface Acoustic Waves Propagating on LiNbO3and LiTaO3Substrates”; Jpn. J. Appl. Phys.; vol. 34 (1995); pp. 2664-2667.
Kadota et al.; “High Frequency Edge-Reflection Resonators Using Shear Horizontal Wave and Longitudinal Leaky Saw Wave;” 31stEM Symposium; IEE UFFC-S Japan Charpter; May 15-16; pp. 101-106. (with full English translation).
Sato et al.; “Longitudinal Leaky Surface Acoustic Wave On Li2B4O7;” Proceedings of the 1994 IEICE General Conference, A443, 1994.
Tonami et al.; “Characteristics of the Second Leaky Surface Acoustic Waves with Low Propagation Loss on LiNbO3Substrate;” Proceedings of the 1996 IEICE General Conference, A305, 1996.
Yamanouchi et al.; “SiO2/ LiTaO3, LiNbO3Structure Acoustic Surface Wave Materials Fabricated by Plasma CVD Method;” IEICE Ultrasonic Group Technical Report US80-3, 1980.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3833093