Patent ID: 8692441
Filing Date: 2014-04-08
Classification: B06B,G10K,H01L

Abstract:
1. A method of forming a piezoelectric ultrasonic transducer apparatus, said method comprising: depositing a first electrode on a dielectric layer disposed on a primary substrate; depositing a piezoelectric material on the first electrode, and depositing a second electrode on the piezoelectric material, the first and second electrodes cooperating with the piezoelectric material to form a transducer device; patterning at least the piezoelectric material such that a portion of the first electrode extends laterally outward therefrom; etching the primary substrate and the dielectric layer to form a first via extending to the laterally outward extending portion of the first electrode; depositing a first conductive material to substantially fill the first via, the first conductive material forming an electrically-conductive engagement with the laterally outward extending portion of the first electrode; and etching the primary substrate to define a second via extending therethrough, the second via being laterally spaced apart from the first via.