Ultrasound array having trapezoidal oscillator elements and a me

Details Ultrasound array having trapezoidal oscillator elements and a me Ultrasound array having trapezoidal oscillator elements and a me

1990-02-22

1991-09-03

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310322, 310326, 310367, H01L 4108

Patent

active

050457462

ABSTRACT:
An ultrasound array has a number of oscillator elements arranged side-by-side, each oscillator element having a trapezoidal cross-section. The oscillator elements are separated from each other by incisions having non-parallel walls, which are co-planar with surfaces of the piezoelectric material comprising the oscillator element. The incisions terminate in a damping member, to which all of the oscillator elements are attached. The incisions are produced with an excimer laser whose laser beam is focused onto a prepared layered material, with the incisions proceeding along a line.

REFERENCES:
patent: 2716708 (1955-08-01), Bradfield
patent: 2833999 (1958-05-01), Howry
patent: 3059130 (1958-09-01), Robins
patent: 4211948 (1980-07-01), Smith et al.
patent: 4211949 (1980-07-01), Brisken et al.
patent: 4305014 (1981-12-01), Borburgh et al.
patent: 4604542 (1986-08-01), Thompson
patent: 4825116 (1989-04-01), Itoh et al.

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