Patent ID: 6868594
Filing Date: 2005-03-22
Classification: B06B,H01L,Y10T

Abstract:
1. A method of making a transducer comprising the steps of: providing a block of a piezoceramic material having opposing top and bottom surfaces and four side surfaces; cutting a series of spaced elongated rectangular channels extending through the top surface of the block to form a set of elongated parallel rectangular projections extending from the bottom surface of the block, the projections having a relatively thin transverse thickness and relatively large area opposing major surfaces extending from a first one of the side surfaces to an opposing one of the side surfaces; providing sets of electrodes on the opposing major surfaces of the piezoceramic projections; filling the channels with a polymer; removing a piezoceramic portion of the block adjacent the bottom surface to produce a composite element; and providing electrodes on opposing top and bottom surfaces of the composite element, wherein each of the electrodes on the opposing major surfaces connects to a different one of the top and bottom surface electrodes.