Composite head arm assembly with thermal control of gram load
AssigneeMaxtor Corporation
InventorsJafar Hadian, Tadashi Yogi, Shuyu Zhang
Life of this patent
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Abstract
A disk drive includes a drive housing, a storage disk coupled to the drive housing and a head arm assembly coupled to the drive housing. The head arm assembly includes an adjuster and a slider coupled to the adjuster. As provided herein, the adjuster changes the gram load that is applied to the slider as the temperature near the adjuster changes. In one of the embodiments, the adjuster increases the gram load that is applied to the slider as the temperature near the adjuster decreases.
Claims41
A disk drive comprising:
- a drive housing;
- a storage disk coupled to the drive housing;
- and
- a head arm assembly coupled to the drive housing, the head arm assembly including an adjuster and a slider coupled to the adjuster, the adjuster including a first layer and an adjacent second layer, the first layer having a first composition with a first material property, the second layer having a second composition with a second material property that is different than the first material property, the adjuster applying a gram load to the slider that at least partially depends upon the temperature of the layers.
A disk drive comprising:
- a drive housing;
- a storage disk coupled to the drive housing;
- and
- a head arm assembly coupled to the drive housing, the head arm assembly including a non-electrically actuated adjuster and a slider coupled to the adjuster, the adjuster adjusting the gram load that is applied to the slider when the temperature of the adjuster changes.
A method for maintaining a slider within a desired flying height range as temperature changes within a disk drive, the method comprising the steps of:
- providing a head arm assembly including the slider and an adjuster, the adjuster including a first layer and an adjacent second layer, the first layer having a first composition with a first material property, the second layer having a second composition with a second material property that is different than the first material property;
- and
- applying a gram load to the slider with the adjuster, the gram load that is applied at least partially depending upon the temperature of the layers.
A method for maintaining a slider within a desired flying height range as temperature changes within a disk drive, the method comprising the steps of:
- providing a head arm assembly including the slider and an non-electrically actuated adjuster;
- and
- adjusting the gram load that is applied to the slider with the adjuster as the temperature of the adjuster changes.
Dependencies are inferred from the claim text.