Patent ID: 8934199
Filing Date: 2015-01-13
Classification: G11B,H01L

Abstract:
1. A disk drive comprising: a disk drive base; a disk rotably mounted to the disk drive base; an actuator rotably mounted to the disk drive base, the actuator including at least one actuator arm and a flexible printed circuit (FPC) that includes a plurality of electrically conductive FPC bond pads; and at least one head gimbal assembly attached to the at least one actuator arm, the at least one head gimbal assembly comprising wherein the flexure tail includes a flexure tail terminal region that overlaps the FPC, the dielectric layer in the flexure tail terminal region being bounded by first and second longitudinal edges, the flexure tail terminal region including a plurality of flexure bond pads in electrical communication with the head, each of the plurality of flexure bond pads being aligned with a corresponding one of the plurality of FPC bond pads, the flexure tail terminal region including a first plurality of discontinuous islands in the structural layer; wherein each of at least three of the first plurality of discontinuous islands extends over the first longitudinal edge by a protrusion distance; and wherein adjacent ones of the at least three of the first plurality of discontinuous islands are separated by a first longitudinal spacing, measured along the first longitudinal edge, that is no greater than thirty times the protrusion distance.