Patent ID: 8134809

Claim:
A head gimbal assembly, comprising: a slider; a PZT micro-actuator; and a suspension to support the slider and the PZT micro-actuator, the suspension including a flexure which has a tongue region, the tongue region comprising a slider mounting region for mounting the slider and a PZT mounting region for mounting the PZT micro-actuator, the PZT mounting region forming a plurality of electrical pads; wherein the PZT micro-actuator comprises: a pair of separate PZT elements, each PZT element having a body and a plurality of electrical pads; wherein the body has at least two electrode-piezoelectric combination layers laminated together, the electrode-piezoelectric combination layers are physically connected with but electrically isolated from each other, each electrode-piezoelectric combination layer has at least two of the electrical pads thereon, the electrical pads extend out from the body of the corresponding PZT element, and all the electrical pads of each PZT element are offset a predetermined distance therebetween; wherein the pair of PZT elements are mounted in the PZT mounting region, the electrical pads of different electrode-piezoelectric combination layers of each PZT element as well as the electrical pads of different electrode-piezoelectric combination layers of each PZT element and the PZT mounting region are bonded correspondingly via a common soldering machine in one step or multiple steps such that electrical connections between different electrode-piezoelectric combination layers of the PZT element and between the PZT element and the suspension are established at the same time.