Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1993-09-03
1995-08-08
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310322, 310326, 310367, H01L 4108
Patent
active
RE0350117
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.
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patent: 4211948 (1980-07-01), Smith et al.
patent: 4211949 (1980-07-01), Brisken et al.
patent: 4305014 (1981-12-01), Borburgh et al.
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patent: 4825116 (1989-04-01), Itoh et al.
Kaarmann Hans
Lerch Reinhard
Lubitz Karl
Vogt Martina
Wersing Wolfrasm
Dougherty Thomas M.
Siemens Aktiengesellschaft
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