Ultrasonic transducer off-aperture connection

Details Ultrasonic transducer off-aperture connection Ultrasonic transducer off-aperture connection

1998-07-31

2000-12-19

Jaworski, Francis J.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600462, 29 2535, A61B 812

Patent

active

061621781

ABSTRACT:
An ultrasonic transducer assembly includes a transducer mounted in a housing, the transducer including a piezoelectric element and respective matching and backing layers formed on the opposite sides thereof, the transducer mounted in the housing encapsulated with a non-conductive potting material. A portion of the matching layer is removed, e.g., by etching, to expose a portion of an underlying electrode formed between the piezoelectric element and the matching layer. A portion of the non-conductive potting material between the etched portion of the matching layer and a signal wire disposed in the housing is also removed. The respective voided portions of the matching layer and non-conductive potting material are filled with an electrically conductive matching material to electrically couple the electrode, and, thus, the piezoelectric element, to the signal wire.

REFERENCES:
patent: 5000185 (1991-03-01), Yock
patent: 5701901 (1997-12-01), Lum et al.

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