US Patent 7375420 Large area transducer array

A large area transducer array comprising a substrate having a front side and a backside, a plurality of transducers disposed on the front side of the substrate and patterned in the form of a two-dimensional transducer array in the X-Y plane, a plurality of connectors disposed on the backside of the substrate where the connectors are electrically coupled to the transducer elements. Further, a stacked transducer array comprising an electronic device disposed in a first layer, a substrate including a front side and a backside, an electrical interconnect layer disposed on the substrate and a plurality of transducers disposed in a third layer where the transducers are electrically coupled to the electronic device disposed in the first layer.