Patent ID: 8416536

Claim:
A head suspension having a base, a piezoelectric element, a load beam, and a wiring member, the wiring member having a conductive base layer, an insulating layer, and a wiring layer layered in this order to supply electric power to the piezoelectric element so that the piezoelectric element deforms to move the load beam relative to the base in a sway direction, the head suspension comprising: a wiring electrode formed on the wiring layer of the wiring member; an element electrode formed on the piezoelectric element; a through hole formed through the conductive base layer and insulating layer of the wiring member to expose the wiring electrode to the element electrode; a projection formed on at least one of the wiring electrode and element electrode to face the other of the wiring electrode and element electrode through the through hole and bring the wiring and element electrodes into contact with each other; and a conductive adhesive joining the connected electrodes in the contact state together.