Abstract: Disclosed is a suspension assembly for a disk drive that includes: a mounting plate having a through-hole; a microactuator mounted on the mounting plate; a flexure attached to the mounting plate, the flexure including a trace layer that includes a ground trace; and a conductive epoxy bonded to the microactuator extending through the through-hole to bond to the flexure, wherein the epoxy extends to the ground trace of the flexure such that the microactuator is grounded to the flexure.

Abstract: A filter assembly for use in an electronic enclosure is provided. The filter assembly includes a highly permeable scrim that defines an elongate enclosure with an inlet at a first end and a closed second end, wherein an electrostatic filtration media is disposed within the elongate enclosure.

Abstract: A magnetic head-positioning servo system is provided to accurately test a magnetic disk with a track written in advance, by providing two fine actuators. The second fine actuator, to which a magnetic head is attached, is mounted on the first fine actuator. The second fine actuator has a larger generating displacement than a generating displacement of the first fine actuator, and lets the magnetic disk to follow the eccentricity of the track. In this way, the positioning accuracy can be increased.

Abstract: A head gimbals assembly for a hard disk for use in a thermally assisted magnetic disk recording medium, in which a laser diode is applied so as to record information with high density. The head gimbals assembly for a hard disk having a plurality of suspensions, each of which is provided with a magnetic head positioned adjacent to a corresponding disk surface among the disks so as to record/reproduce information; a head gimbals body having a centrally formed pivot hole which allows the head gimbals body to be fitted in such a manner as to be rotatable in relation to the disks, the suspensions extending from one end of the head gimbals body; a coil rotator provided at the other end of the head gimbals body so as to rotate the head gimbals body about the pivot hole; and a laser assembly having one or more laser diodes and one or more wave guides, the light emitted from any of the laser diodes is guided to a corresponding magnetic head by the wave guides.

Abstract: A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing assembly with a base piece, two arms, and supports for a connection plate. In an alternate embodiment, the base piece includes a rear support and a support base. In a further embodiment, excess material surrounding the pattern is cut away so as to allow the most efficient use of the material.

Abstract: A micro-electro-mechanical device formed by a body of semiconductor material having a thickness and defining a mobile part and a fixed part. The mobile part is formed by a mobile platform, supporting arms extending from the mobile platform to the fixed part, and by mobile electrodes fixed to the mobile platform. The fixed part has fixed electrodes facing the mobile electrodes, a first biasing region fixed to the fixed electrodes, a second biasing region fixed to the supporting arms, and an insulation region of insulating material extending through the entire thickness of the body. The insulation region insulates electrically at least one between the first and the second biasing regions from the rest of the fixed part.

Abstract: A head gimbal assembly includes a slider, a rotatable micro-actuator and a suspension to load the slider and the rotatable micro-actuator. The rotatable micro-actuator horizontally rotates the slider with a central portion of the slider as an axis, which includes a bottom plate to be connected with the suspension, two arm plates symmetrically disposed on the bottom plate with a central portion of the bottom plate as symmetry point and at least one piezoelectric pieces to be connected with the arm plates. Selectively, the amount of the arm plates can be four and four piezoelectric pieces to be connected with the four arm plates, respectively.

Abstract: A HGA includes a slider, a micro-actuator horizontally rotating the slider with a central portion of the slider as a rotation center, and a suspension to load the slider and the micro-actuator; wherein the micro-actuator comprises a support frame having a base, a moving plate, and a leading beam to connect the base and the moving plate; and at least one piezoelectric pieces to be connected with the base and the moving plate; wherein the leading beam has a pivot part to assist the horizontal swing of the slider. The pivot part has a narrower width than that of the leading beam. The suspension also includes a support means to support the base of the support frame on a suspension tongue portion. The invention also discloses a disk drive unit having the HGA.

Abstract: A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing assembly with a base piece, two arms, and supports for a connection plate. In an alternate embodiment, the base piece includes a rear support and a support base. In a further embodiment, excess material surrounding the pattern is cut away so as to allow the most efficient use of the material.

Abstract: A slider assembly is operable to selectively alter a position of a transducing head with respect to a track of a rotatable disc having a plurality of concentric tracks. The slider assembly includes a slider wafer arranged to be supported by a disc drive support structure. A stator is bonded to the slider wafer, with the stator including at least one electrode. A rotor is bonded to the stator, with the rotor having a frame portion bonded to the stator and a head-carrying portion attached to the frame portion by a flexible beam structure. The head-carrying portion of the rotor carries the transducing head, supports at least one rotor electrode adjacent to the at least one stator electrode, and is movable with respect to the frame portion of the rotor in response to a voltage difference between the at least one rotor electrode and the at least one stator electrode.

Abstract: A head stack assembly for use in a disk drive includes a body portion having a bore which defines a pivot axis. The head stack assembly includes an actuator arm body extending from the body portion and defining a longitudinal axis. The actuator arm body rotates about the pivot axis. The head stack assembly includes a load beam extending from the actuator arm body. The head stack assembly includes a head connected to the load beam. The head stack assembly includes a linear actuator connected to the body portion. The linear actuator expands and contracts. The head stack assembly includes an actuation linkage interposed between the actuator arm body and the load beam. The actuation linkage is connected to the linear actuator element. Selective expansion/contraction of the linear actuator moves the actuation linkage which moves the load beam and the head with a transverse component relative to the longitudinal axis.

Abstract: An electromagnetic x-y stage driver for a nano data storage system and a method for fabricating the coils of the same are provided. In the electromagnetic x-y stage driver, a cantilever tip array fixedly provided a medium for recording data to write data to or read data from each cell of the medium. Four coils are formed to be integrated with the medium in front of, behind, to the left of and to the right of the medium to move the medium. Four supporting beam are installed to an x-y stage body onto which a medium structure composed of the medium and the four coils is loaded such that the four supporting beam are connected to the four corners of the medium structure to support the medium structure. Four driving beams connect the upper portions of the supporting beam to the four corners of the medium structure to allow the medium structure to move in an x or y direction. Stiffeners are disposed at the four sides between the supporting beam to prevent the medium structure from rotating.

Abstract: A 3-dimensional comb structure using an electrical force, and an inertial detection sensor and an actuator both using the 3-dimensional comb structure are provided. In the 3-dimensional comb structure, a suspension structure, which is an inertia body, is separated a predetermined height from a substrate, maintaining the predetermined height from the substrate. A movable comb, which has at least one movable comb finger, protrudes perpendicularly from the suspension structure. A fixed comb, which has at least one fixed comb finger, protrudes perpendicularly from the substrate, in mesh with the movable comb. The 3-dimensional comb structure is driven by a voltage provided from a power supply unit which is connected to the movable comb and the fixed comb.

Abstract: An integrated microfile includes a rotatably supported magnetic disk for storing data and a micromotor for rotating the disk. The micromotor includes a rotor fixedly joined to the disk and having a plurality of rotor poles. A stator includes a plurality of stator poles positioned around the rotor for sequentially cooperating with respective ones of the rotor poles for rotating the rotor to rotate the disk. A selectively movable access head is disposed adjacent to the disk for selectively addressing the data on the disk. The microfile may be fabricated using lithographic and electroplating techniques in subform-factor sizes in an exemplary embodiment.

Abstract: A microactuator includes a pair of stationary elements, a movable element, and a plurality of springs. The stationary elements are fixed to a substrate. The movable element is movably arranged on the substrate and opposes to the stationary elements. The movable element moves parallel to the surface of the substrate by applying a voltage across one of the stationary elements and the movable element. The springs support the movable element to float the movable element above the surface of the substrate. The springs and the movable element are surrounded by at least the stationary elements and externally guarded. A method of manufacturing this microactuator is also disclosed.