A precise positioning actuator to be fixed to a head slider provided with at
least
one head element, for precisely positioning the at least one head element includes
a base, and a pair of movable arms extending from the base and having slider fixing
portions to be fixed to side surfaces of the head slider at top end sections thereof.
Each of the pair of movable arms includes an arm member and an actuator layer formed
on a side surface of the arm member, for displacing the arm member in response
to a drive signal applied thereto. The actuator layer is terminated on the side
surface of the arm member at a frontward position form the slider fixing portion.