Head assembly and disk device provided with the same

摘要

According to one embodiment, a head gimbal assembly includes a support plate, a wiring member including a thin metallic plate, an insulating layer and a conductive layer, the wiring member including a tongue portion located on a convex portion of the support plate, a proximal end portion fixed onto the support plate, and a bridge portion bridged between the tongue portion and the proximal end portion and including a inflection point with respect to a height direction of warping, a magnetic head attached to the tongue portion, and a piezoelectric element bonded to the bridge portion at a section between the proximal end portion and the inflection point.

主权项

1. A head assembly comprising:
a support plate comprising a distal end portion with a convex portion; a wiring member comprising a metallic plate, an insulating layer on the metallic plate and a conductive layer on the insulating layer, to form a plurality of wirings, the wiring member being attached to the support plate, the wiring member comprising a tongue portion located on the convex portion, a proximal end portion fixed onto the support plate apart from the tongue portion, and a bridge portion bridged between the tongue portion and the proximal end portion, the bridge portion comprising a curved portion which is convex toward the support plate at a section between the proximal end portion and the tongue portion; a magnetic head attached to the tongue portion and electrically connected to the wirings of the wiring member; and a piezoelectric element bonded to the curved portion of the bridge portion and configured to expand and contract by an applied voltage in a longitudinal direction of the wiring member.