Patent ID: 6634071
Filing Date: 2003-10-21
Classification: H01L,H04R,Y10T

Abstract:
A method of fabricating a piezoelectric composite transducer, comprising the steps of:providing a block of piezoelectric material having a common base and a plurality of uniform-length rods extending from said common base in a parallel spaced-apart fashion to define an array, wherein a first surface region is defined at outboard ends of said plurality of rods and wherein a side region is defined about the periphery of said block; positioning at least one electric conductor to extend through said side region and substantially parallel to said first surface region before being shaped to extend substantially parallel to said plurality of rods, wherein said electric conductor extends at least to said first surface region; filling spaces between said plurality of rods up to said first surface region with a viscoelastic material after said step of positioning at least one electric conductor; removing said common base of said block wherein a second surface region parallel and opposite to said first surface region is defined; depositing at least one electrode at said first surface region to be in Contact with at least a portion of said plurality of rods and in electrical contact with said electric conductor at the location wherein said electrical conductor extends to said first surface region; and depositing at least one ground electrode at said second surface region to be in contact with said plurality of rods.