Ultrasonic matching layer and transducer

Details Ultrasonic matching layer and transducer Ultrasonic matching layer and transducer

2006-03-02

2010-10-05

Benson, Walter (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S327000, C310S311000

Reexamination Certificate

active

07808156

ABSTRACT:
In one aspect, matching layers for an ultrasonic transducer stack having a matching layer comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In another aspect, the matrix material is loaded with a plurality of heavy and light particles. In another aspect, an ultrasound transducer stack comprises a piezoelectric layer and at least one matching layer. In one aspect, the matching layer comprises a composite material comprising a matrix material loaded with a plurality of micron-sized and nano-sized particles. In a further aspect, the composite material can also comprise a matrix material loaded with a plurality of heavy and light particles. In a further aspect, a matching layer can also comprise cyanoacrylate.

REFERENCES:
patent: 4523122 (1985-06-01), Tone et al.
patent: 5353798 (1994-10-01), Sieben
patent: 5553035 (1996-09-01), Sayed-Bolorforosh et al.
patent: 2003/0032884 (2003-02-01), Smith et al.
patent: 2003/0187356 (2003-10-01), Wakabayashi et al.
patent: 2004/0000847 (2004-01-01), Ladabaum et al.
patent: 2004/0095045 (2004-05-01), Baumgartner
patent: 2005/0127793 (2005-06-01), Baumgartner et al.
patent: 2005/0240102 (2005-10-01), Rachlin et al.
patent: WO 2007/103143 (2007-09-01), None
patent: WO 2007/103144 (2007-09-01), None
Farquhar, Steinwall, “Elastic Properties of Filled Epoxy Encapsulants,” EEP—Vo. 10-2, Advances in Electronic Packaging, ASME, (1995).
Grewe, Gururaja, Newnham and Shrout, “Acoustic Properties of Particle/Polymer Composites for Transducer Backing Applications,” IEEE Trans. on Ultrasonics, Ferroelectrics and Frequency Control, 37(6): 506-514 (1990).
Ritter, Shung, Geng, Lopath, Tutwiler, and Shrout, “Proceedings of SPIE”—vol. 3664 Medical Imaging 1999: Ultrasonic Transducer Engineering, K. Kirk Shung, Editor, pp. 67-75, (Jun. 1999).
Selfridge, “Approximate Material Properties in Isotropic Materials,” IEE Trans. Sonics and Ultrasonics, vol. SU-32, No. 3, (May 1985).
Wang, Ritter, Cao, and Shung, “Passive Materials for High Frequency Ultrasound Transducers,” SPIE Conf. on Ultrasonic Transducer Engineering, San Diego, California, SPIE vol. 3664, (Feb. 1999).
PCT/US07/005301, Chaggares, Application Filing Date Mar. 1, 2007, International Preliminary Report on Patentability, Date of Document Sep. 2, 2008.
PCT/US07/005301, Chaggares, Application Filing Date Mar. 1, 2007, International Search Report, Date of Document Feb. 20, 2008.
PCT/US07/005301, Chaggares, Application Filing Date Mar. 1, 2007, Written Opinion, Date of Document Sep. 10, 2007.
PCT/US07/005300, Chaggares, Application Filing Date Mar. 1, 2007, International Preliminary Report on Patentability, Date of Document Sep. 2, 2008.
PCT/US07/005300, Chaggares, Application Filing Date Mar. 1, 2007, International Search Report, Date of Document Feb. 14, 2008.
PCT/US07/005300, Chaggares, Application Filing Date Mar. 1, 2007, Written Opinion, Date of Document Sep. 11, 2007.
U.S. Appl. No. 11/366,953, Chaggares, Application Filing Date Mar. 2, 2006, Preliminary Amendment, Date of Document Jun. 8, 2007.

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