Encapsulant for microactuator suspension
AssigneeSeagate Technology LLC
InventorsMarsha A. Huha, John S. Wright, Lee Walter
Life of this patent
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Abstract
A microactuator used for selectively altering a position of a transducing head carried by a slider in a disc drive system with respect to a track of a rotatable disc having a plurality of concentric tracks. The microactuator is of the type comprising a piezoelectric element. A polymer coating encapsulates all exposed surfaces of the piezoelectric element.
Claims17
An improved disc drive for positioning a slider carrying a transducing head with respect to a selected track of a rotatable recording disc, the disc drive of the type having a movable actuator arm, a head suspension, a microactuator, a flexure, a slider and a transducing head carried by the slider, the improvement comprising:
- an encapsulant covering all exposed surfaces of a component selected from the group consisting of the microactuator, the slider, a disc spacer, surface mount components on a printed circuit card assembly, ceramic components of the disc drive, and stainless steel components of the disc drive.
An improved microactuator for selectively altering a position of a transducing head carried by a slider in a disc drive system with respect to a track of a rotatable disc having a plurality of concentric tracks, the microactuator of the type including a piezoelectric element, the improvement comprising:
- a polymer coating encapsulating all exposed surfaces of the piezoelectric element.
A microactuator comprising:
- a first piezoelectric element attached between a mounting block and a suspension, the first piezoelectric element being deformable in response to a voltage applied thereto;
- a uniform polymer coating encapsulating all exposed surfaces of the first piezoelectric element;
- and
- a compliant joint connected between the mounting block and the suspension, the compliant joint being flexible to permit movement of the suspension with respect to the mounting block.
Dependencies are inferred from the claim text.