摘要:
A head suspension assembly couples a baseplate to a rotatable load through a planar triangular piezo microactuator for effecting hingeless rotation of the load. The microactuator expands, responsive to an excitation voltage, with greater magnitude in one direction than in another direction normal to the first direction, resulting in an angular movement of the hypotenuse thereby rotating the load. The upper surface of the microactuator is grounded to a bottom surface of the baseplate or load beam to position the microactuator lead connection surface closest to the load to facilitate trace routing. A load beam grounding surface may be raised to accommodate the microactuator and fix the lead connection surface on a common plane with the unraised surface to further minimize trace routing and provide access for bonding the trace to the load beam.
摘要:
A head suspension assembly couples a baseplate to a rotatable load through a planar triangular piezo microactuator for effecting hingeless rotation of the load. The microactuator expands, responsive to an excitation voltage, with greater magnitude in one direction than in another direction normal to the first direction, resulting in an angular movement of the hypotenuse thereby rotating the load. The upper surface of the microactuator is grounded to a bottom surface of the baseplate or load beam to position the microactuator lead connection surface closest to the load to facilitate trace routing. A load beam grounding surface may be raised to accommodate the microactuator and fix the lead connection surface on a common plane with the unraised surface to further minimize trace routing and provide access for bonding the trace to the load beam.
摘要:
A microactuated disk drive suspension for supporting a slider at a disk includes a load beam extending in a plane and having on a common axis a base section adapted for mounting to an actuator, a spring section and a beam section carrying a flexure and the slider thereon. The suspension has relatively movable proximate and distal portions on the common axis that are joined by a bending system cantilevered from the proximate portion and including a cantilevered bending motor opposed to the common axis and having a laterally bendable unsupported region. A cantilevered laterally bendable load assist structure defined by the suspension edges is provided arranged to block undue loading of the bending motor unsupported region.
摘要:
In a disk drive suspension the conventional load beam spring section is replaced by the spring metal layer of the flexible conductor that forms the flexure providing more accurate spring function without the need of critical etching steps in the load beam spring section.
摘要:
A disk drive suspension uses microactuators comprising piezoelectric crystals to drive movement of the load beam carrying slider relative to disk tracks, the crystals being positively coupled to the load beam portions by cooperating, interfitting structures defined by the crystal and load beam portions.
摘要:
Method and apparatus in which a disk drive suspension flexure tongue supports a slider. A flexure frame attached to a suspension supports the tongue in dimple engagement with the suspension. Spaced, separate biasing structures on the frame act oppositely on the tongue for a net increase in tongue dimple contact force.
摘要:
A disk drive suspension and method has a limiter structure that limits movement of the tongue relative to a surrounding frame by extending the plastic film layer and optionally the metal layer components of a flexure-defining flexible circuit laminate beyond the flexure tongue distal end and attaching the terminal regions of the extended components to the surrounding frame laterally of the tongue. The flexure-defining laminate is attached to the suspension rigid portion proximally and optionally distally as well as laterally with the limiter structure. A lift tip can be used to enable lifting of the suspension and to stiffen the suspension in lieu of the distal attachment of the flexible circuit.
摘要:
A disk drive suspension and method uses microactuators comprising piezoelectric crystals to drive movement of the load beam beam portion relative to the load beam base portion to shift the beam portion carrying a slider relative to disk tracks by having the load beam portions and the crystals positively coupled to load beam projecting parts extending into the perimeter of the crystals.
摘要:
A disk drive suspension comprising a load beam utilizing a piezoelectric microactuator has bendable arcuate spring portion elements which further curl or flatten in response to contraction or expansion of the piezoelectric microactuator to facilitate greater distance beam displacement at lower levels of voltage.
摘要:
A recording head suspension is provided having a gimbaling dimple and a cooperating channel of greater longitudinal extension and substantially the same lateral extension as the dimple to permit rotation of the dimple and block substantial lateral movement and dislodgment of the dimple from the channel responsive to a lateral shock to the recording head suspension.