Method of mounting a piezoelectric helmholtz transducer on a pri

Details Method of mounting a piezoelectric helmholtz transducer on a pri Method of mounting a piezoelectric helmholtz transducer on a pri

1986-03-10

1986-12-23

Hall, Carl E.

Metal working

Piezoelectric device making

29837, 29840, 310322, H01L 4122

Patent

active

046303421

ABSTRACT:
A helmholtz resonator is driven by a piezoelectric element and is suited for mounting to a printed circuit board. The resonator includes a resonant chamber defined by bottom, top, and side walls, and at least two ports that provide access to the chamber. The ports are contiguous to the bottom and side walls so that any liquid entering the chamber during the printed circuit board cleaning process can exit via the ports. This arrangement overcomes the contamination problem existing in prior art resonators having a single port.

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