Patent ID: 8144436

Claim:
A head suspension having a load beam and a piezoelectric actuator, the piezoelectric actuator supporting a base part of the load beam and configured to displace a front end of the load beam in a sway direction, the head suspension comprising: the piezoelectric actuator having an actuator base and at least a piezoelectric element, the actuator base connected to the base part of the load beam and having at least an opening, the piezoelectric element attached to the opening and deforming in response to a voltage applied thereto to conduct displacement of the front end of the load beam; a nonconductive adhesive filled between the piezoelectric element and the opening, to fix the piezoelectric element to the opening; and a trap formed on the actuator base outside the opening, configured to hold the nonconductive adhesive oozing out of the opening and prevent the oozed adhesive from spreading.