Head gimbal assembly and magnetic disk drive
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsYuhsuke Matsumoto, Tatsushi Yoshida, Noriyuki Saiki, Yukihiro Isono, Hideo Yamakura
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Abstract
Embodiments of the invention provide a head gimbal assembly (HGA) provided with a solder ball connecting structure suitable for the re-utilization of a suspension assembly. In one embodiment, the HGA includes lead wires provided at front ends thereof with lead pads and also includes slider pads capable of being connected to the lead pads by solder ball bonding with the use of solder balls. Respective grooves formed in the surfaces of the slider pads inhibit the solder balls from rotating and moving over the surfaces of the slider pads and the lead pads before the radiation of a laser beam.
Claims20
A head gimbal assembly comprising:
- a lead wire having a lead pad;
- a head/slider having a slider pad configured to be soldered to said lead pad with use of a solder ball, a restraining portion being provided in said slider pad, said restraining portion restraining rotation and movement of said solder ball while being supported by a surface of said slider pad and a surface of said lead pad;
- a flexure configured to support said head/slider;
- and
- a load beam configured to support said flexure.
A magnetic disk drive comprising:
- a magnetic disk;
- a head gimbal assembly on which a head/slider is mounted, said head/slider being adapted to access said magnetic disk;
- and
- an actuator assembly configured to pivotally move said head gimbal assembly;
- wherein said head gimbal assembly comprises:
- a lead wire having a lead pad;
- a head/slider having a slider pad configured to be soldered to said lead pad with use of a solder ball, a restraining portion being provided in said slider pad, said restraining portion restraining rotation and movement of said solder ball while being supported by a surface of said slider pad and a surface of said lead pad;
- a flexure configured to support said head/slider;
- and
- a load beam configured to support said flexure.
Dependencies are inferred from the claim text.