PIEZOELECTRIC TRANSDUCER AND COMPONENTS THEREFOR

摘要

A piezoelectric transducer component comprising a layer (10) of piezoelectric material having conductive electrode layers (12, 16) applied to opposite surfaces thereof, the conductive layers having overlapping areas defining an active piezoelectric region between them, and non-overlapping areas to which electrical connections are made. One of the conductive layers (16) is larger in area than the opposite conductive layer (12) and has a window (18) in it in register with a portion (14) of the opposite conductive layer to which portion an electrical connection (24) is made. Suitably an electrical connection (30) is made with the larger conductive layer (16) through an opening (28) in the piezoelectric layer in a said non-overlapping area of the larger conductive layer.