Patent ID: 8813324

Claim:
A method for fabricating a piezoelectric multilayer comprising: depositing a first conductive layer on a substrate; depositing a first piezoelectric layer on the first conductive layer; removing a portion of the first piezoelectric layer to provide a first aperture therein, the first aperture exposing a portion of the first conductive layer; providing a portion of a first conductive plug within the first aperture, the first conductive plug being electrically connected to the first conductive layer; depositing a second conductive layer on the first piezoelectric layer; removing a portion of the second conductive layer to provide a second aperture therein, the second aperture exposing the first conductive plug and allowing the second conductive layer to be electrically insulated from the first conductive plug; depositing a second piezoelectric layer covering the first conductive plug and the second conductive layer; removing a portion of the second piezoelectric layer to provide a third aperture and a fourth aperture therein, the third aperture exposing the first conductive plug, the fourth aperture exposing an additional portion of the second conductive layer distal from the first conductive plug; providing a second portion of the first conductive plug in the third aperture and a first portion of a second conductive plug in the fourth aperture; depositing a third conductive layer electrically coupled to the first conductive plug; removing a portion of the third conductive layer to form fifth aperture therein, the fifth aperture exposing the second conductive plug and allowing the third conductive layer to be insulated from the second conductive plug.