Suspension for releasing thermal deformation thereof and suppressing thermal crown change of a slider mounted thereon, head gimbal assembly and disk drive unit with same
AssigneeSAE Magnetics (H.K.) Ltd.
InventorsLiDing Wei, YiCheng Sheng, JingShu Shi
Life of this patent
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Abstract
A suspension for a HGA includes a flexure having a suspension tongue with electrical pads adapted for mounting a slider thereon. The suspension tongue has some portions etched with left portions therebetween forming into at least one hinge or spring mechanism for releasing thermal deformation of the suspension tongue and suppressing thermal crown change of the slider. The etched portions have an H-shaped, an M-shaped, an X-shaped, or a stairway configuration, or the like. The invention also discloses a HGA with the suspension and a disk drive unit having such suspension.
Claims13
A suspension for a head gimbal assembly comprising:
- a flexure having a suspension tongue with electrical pads adapted for mounting a slider thereon;
- wherein the suspension tongue has some portions etched with remaining portions therebetween forming into at least one hinge or spring mechanism for releasing thermal deformation of the suspension tongue and suppressing thermal crown change of the slider, the etched portions comprising a first group of slots which comprise an H-shaped slot and two one-end-opened slots formed by cutting two opposite sides of the suspension tongue and formed between two parallel branches of the H-shaped slot, and the one-end-opened slots paralleling the parallel branches respectively.
A head gimbal assembly comprising:
- a suspension comprising a flexure having a suspension tongue with electrical pads thereon;
- a slider mounted on the suspension tongue by the electrical pads;
- wherein the suspension tongue has some portions etched with remaining portions therebetween forming into at least one hinge or spring mechanism for releasing thermal deformation of the suspension tongue and suppressing thermal crown change of the slider, the etched portions comprising a first group of slots which comprise an H-shaped slot and two one-end-opened slots formed by cutting two opposite sides of the suspension tongue and formed between two parallel branches of the H-shaped slot, and the one-end-opened slots paralleling the parallel branches respectively.
A disk drive unit comprising:
- a head gimbal assembly including a slider and a suspension supporting the slider;
- a drive arm connected to the head gimbal assembly;
- a disk;
- and
- a spindle motor operable to spin the disk;
- wherein the suspension comprising:
- a flexure having a suspension tongue with electrical pads thereon for mounting the slider;
- wherein the suspension tongue has some portions etched with remaining portions therebetween forming into at least one hinge or spring mechanism for releasing thermal deformation of the suspension tongue and suppressing thermal crown change of the slider, the etched portions comprising a first group of slots which comprise an H-shaped slot and two one-end-opened slots formed by cutting two opposite sides of the suspension tongue and formed between two parallel branches of the H-shaped slot, and the one-end-opened slots paralleling the parallel branches respectively.
Dependencies are inferred from the claim text.