Patent ID: 8094416

Claim:
A head suspension having a base plate, a load beam connected to the base plate, and a flexure attached to the load beam, the head suspension comprising: a piezoelectric actuator arranged between the base plate and the load beam, the piezoelectric actuator having a piezoelectric element configured to deform according to a state of applied voltage and move a front end of the load beam in a sway direction according to the deformation of the piezoelectric, the piezoelectric actuator including: first and second piezoelectric parts that are oppositely polarized and deform according to a state of applied voltage; a common electrode formed over first surfaces of the first and second piezoelectric parts; a first electrode formed on a second surface of the first piezoelectric part; and a second electrode formed on a second surface of the second piezoelectric part; a wiring formed on the flexure and having a single terminal connected to the common electrode, the terminal being parallel with and facing the common electrode; and a conductive layer interposed between the common electrode and the single terminal of the wiring to form an electrical connection therebetween.