Patent ID: 6954971

Claim:
A method for simultaneously making a plurality of acoustic signal sensor elements, comprising the steps of: providing a plurality of flex cables and equidistantly positioning the flex cables along a working surface, each flex cable having a plurality of conductors thereon; configuring each flex cable such that all but a first one of the conductors are folded upward; disposing a first electrically conductive adhesive layer over a portion of the first one of the conductors of each flex cable; disposing a first strip of piezoelectric film over the first electrically conductive adhesive layer; configuring each flex cable such that a second one of the conductors is disposed over the first strip of piezoelectric film; disposing a second electrically conductive adhesive layer over a portion of the second one of the conductors of each flex cable; disposing a second strip of piezoelectric film over the second electrically conductive adhesive layer; configuring each flex such that a portion of a third one of the conductors of each flex cable is disposed over the second strip of piezoelectric film; disposing a third electrically conductive adhesive layer over said portion of the third one of the conductors; disposing a metallic strip over the third electrically conductive adhesive layer and substantially the entire second strip of piezoelectric film; curing the adhesive layers to form a laminate assembly; providing a template having indicia therein that functions as a cutting guide; and cutting the laminate assembly according to the indicia to form a plurality of sensor elements.