Abstract: A disk drive suspension has laterally separated mount plate cooperating structure of a pair of spaced, left and right hand continued extents defining engagement structures extending into the vertical plane of the suspension hinge portion, and laterally separated beam portion cooperating structure of left and right hand continuations defining cooperating engagement structures also extending into the vertical plane of the hinge portion and overlapping the mount plate extents to block their relative vertical movement in one direction but not the other so that rotation of the beam portion relative to the mount plate is limited by this selective engagement of the cooperating structures, while the hinge portion is untrammeled by the cooperating structures and the suspension has increased torsional stiffness without an increase in suspension vertical stiffness or has a decrease in suspension vertical stiffness without a decrease in torsional stiffness.

Abstract: A method and system for providing head is disclosed. The method and system include providing a first pole, a second pole, a write gap, at least one coil and an Fe3Pt alloy. The write gap separates the first pole from the second pole. The first and second poles are for writing to a medium. The coil(s) have a plurality of turns and reside between the roles. The Fe3Pt alloy is in proximity to the first pole and the second pole. The Fe3Pt alloy is configured to counteract expansion of the first pole and the second pole.

Abstract: A head gimbal assembly for a disk drive. The head gimbal assembly includes a load beam defining a longitudinal axis. The head gimbal assembly further includes a flexure with a portion of said flexure being attached to said load beam. The head gimbal assembly further includes a slider including a read/write head. The head gimbal assembly further includes a collocated microactuator which connects between said flexure and said slider for providing pure or nearly pure lateral movement to said slider in a plane of motion that includes the longitudinal axis. The collocated microactuator is a shear mode piezoelectric motor and disposed between the slider and the load beam along an axis disposed orthogonal to the longitudinal axis.

Abstract: A head gimbal assembly (10) for a disk drive (1), having a load beam (28), a flexure (30), a portion of the flexure (30) being attached to the load beam (28), a slider (20) which includes a read/write head (22), and a collocated microactuator (24) which connects between the flexure (30) and the slider (20). The collocated microactuator (24) is a shear mode piezoelectric motor (25) for providing pure or nearly pure lateral movement to the slider (20), thus providing secondary actuation for the head gimbal assembly (10).

Abstract: A head gimbal assembly (10) for a disk drive (1), having a flexure (30) with a stationary portion (40) and at least one movable portion (42), a portion of the flexure (30) being attached to a load beam (28). A slider (20) containing a read/write head (22) is attached to one of the movable portions (40) of the flexure (30). The load beam (28) provides a center of rotation (54) for the slider (20) and one or more microactuators (24) connect between the stationary portion (40) of the flexure (30) and one of the movable portions (42, 44) for applying a moment which causes pure or nearly pure rotation of the slider (20) about the center of rotation (54). A disk drive (1) and an actuator arm (2) including the head gimbal assembly (10) are also disclosed.

Abstract: A transducer suspension for a drive system has a beam which is bendable in a vertical direction for holding the transducer adjacent to the media, but is torsionally stiff for quicker access times and reduced noise and errors. This inherently contradictory performance occurs by joining a laterally elongated brace which is torsionally stiff about its elongated dimension across a pair of laterally disposed strips to cause the strips to flex in unison, allowing bending but reducing torsional motion in the suspension about an axis which is substantially perpendicular to the torsionally stiff axis of the brace. The torsionally stiff brace may take the form of a tube having a rectangular, triangular or circular cross-section, and may be formed of material cut from the suspension to define the hinge strips. The brace may have reduced longitudinal dimensions at the connections to the strips to further filter torsional versus bending vibrations.

Abstract: A head gimbal assembly includes a suspension of the type supporting a slider and a flex circuit. The suspension is formed of a load beam that supports the flex circuit, and a resilient flexure which is secured to the load beam and which supports the slider. The flex circuit is comprised of conductive traces formed on a compliant, dielectric substrate. The substrate includes a body portion and a head portion for supporting the conductive traces. The substrate head portion is patterned such that selected portions are removed to leave bare conductive trace sections on a generally serpentine insulation layer, in order to compensate for variations effected by heat and humidity. The serpentine insulation layer is S-shaped with a periodic pattern, and overlays but does not touch the load beam tip. The substrate body portion overlays and is secured to the load beam at selected locations.