摘要:
An air bearing slider for use in a disk drive that includes a rotatable magnetic disk. The slider includes a leading side and a trailing side. The slider further includes a pressurized pad including a pressurized pad air bearing surface. The pressurized pad is disposed between the leading and trailing sides. The slider further includes a contact pad disposed adjacent the trailing side and including a contact surface for sliding contact with the magnetic disk during operation of the disk drive. The contact pad includes a transducer disposed within the contact pad for reading and writing data from and to the magnetic disk. The slider further includes a depressed region disposed between the pressurized pad and the contact pad for mitigating air pressure adjacent the contact surface relative to air pressure adjacent the pressurized pad air bearing surface during operation of the disk drive.
摘要:
A magnetic disk apparatus includes a magnetic disk, a magnetic head for writing data into and reading data from the magnetic disk, a carriage pivoted on a pivot bearing while holding the magnetic head at its one end, the pivot bearing being constituted by a cylindrical sleeve serving as a fixed axle, bearing units each having an outer race fitted to the inside of the sleeve, bearing balls, and an inner race, and a shaft having the outside fitted to the inner races of the bearing units, thus, change of a pre-load caused by a heat expansion difference between the shaft and sleeve is an axial direction is compensated with a change of a pre-load caused thereby the same is a radius direction. Hence, the weight of a pivotally movable portion of an actuator is reduced.
摘要:
A magnetic head slider has a magnetic head mounting surface holding a magnetic head, to be kept closest to a magnetic disk when the magnetic head slider is in operation, a slider rail surface contiguous with a surface, on the side of an air inlet end, and opposite sides of a portion, near an air outlet end, of the magnetic head and extending near to the air outlet end, a step bearing surface formed at least on the side of the air inlet end of the slider rail surface, and a negative-pressure groove formed so as to surround the step bearing surface. The magnetic head mounting surface is typically formed on an alumina protective film protecting the magnetic head. The variation of the flying height of the magnetic head slider with respect to a rolling direction is reduced and a proximity ability to approach the magnetic disk is improved.
摘要:
A disk drive (22) for load/unload applications having an actuator arm (32), a slider (34) and a suspension membrane (48) which attaches the slider (34) to the actuator arm (32). The slider (34) includes a leading edge (50), a trailing edge (52), a number of pads (80, 82) and a cavity (60), which creates a region of sub-ambient pressure (61), including a negative pressure center (62). A load point (64) is formed where the suspension membrane (48) attaches to the slider (34). The negative pressure center (62) is positioned towards the trailing edge (52) relative to the load point (64), such that when upward force (96) is applied to the slider (34) at the load point (64), a moment (98) is produced which raises the leading edge (50), allowing increased air flow into the cavity (60), which diminishes the sub-ambient pressure (61), and allows the arm (34) to be raised without damaging the suspension membrane (48). Also, a slider (34) contoured for use in a load/unload disk drive (22) and a method for disengaging a slider (34) having high stiffness from a disk surface (26) without damaging a disk drive suspension membrane (48).
摘要:
An MR thin-film magnetic head includes a lower shield layer, an upper shield layer, a MR multilayer sandwiched between the lower shield layer and the upper shield layer, the MR multilayer being electrically connected with the lower shield layer and the upper shield layer, a current flowing through the MR multilayer in a direction perpendicular to surfaces of layers, and a lead conductor having one end electrically connected to the upper shield layer and the other end connected to a terminal electrode. The lead conductor is patterned such that an area of said lead conductor located above said lower shield layer becomes small.
摘要:
An angle &thgr;1 made between a supporting surface S of a slider and an imaginary plane C in which a first border line and a second border line of a tapered surface lie, and an angle &thgr;2 made between the supporting surface S of the slider and an imaginary plane D in which a first border line and a second border line of a tapered surface lie, respectively fall within a range of not less than 5 degrees but not more than 14 degrees.
摘要:
A trailing ABS face, which is a surface generating positive pressure, is formed to rise from a surface facing a recording medium, which is a surface generating negative pressure, toward the recording medium and furthermore, a surface facing the element, in which a gap portion of a magnetic element is located, is formed to rise from the trailing ABS face. Thereby, the floating lift of a magnetic head can be reduced while the floating position can be stabilized and furthermore, collision of the magnetic head with a disk surface can be properly avoided.
摘要:
A glide head includes two rails that run from the leading end to the trailing end of the glide head and a transverse contact rail that is orientated orthogonally to the two rails and is located at the trailing end of the glide head. The two rails may contact the transverse contact rail or one or both may not extend to the transverse contact rail. In addition, the channel region defined between the two rails and the wing, if used, may be tapered so that they merge with the bottom surface of the transverse contact rail. The transverse contact rail may extend beyond the two rails. The glide head flies with a positive pitch which causes the transverse contact rail to be the closest area on the glide head to the surface of a rotating disk being tested. Thus, the mechanical energy is greatest when the transverse contact rail contacts a defect on a disk, and thus the transverse contact rail is the active rail. Because the transverse contact rail extends across the width of the glide head, the glide head may be stepped by large amounts when testing a disk, which decreases testing time and increases throughput. In addition, the transverse contact rail may extend from one side of the glide head to the other, and thus, the glide head may be used to test both the inside diameter and outside diameter of a disk.
摘要:
A disc head slider includes a slider body having a leading slider edge, a trailing slider edge and a slider length measured from the leading slider edge to the trailing slider edge. First and second raised rails are positioned on the slider body, which have first and second bearing surfaces, respectively. A recessed area is positioned between the first and second side rails and has a recess floor. A first raised pad is positioned rearward of a midpoint along the slider length and includes a third bearing surface, which is generally coplanar with the first and second bearing surfaces. A convergent channel is recessed within the third bearing surface and trails a portion of the recessed area. The convergent channel includes a leading channel end open to fluid flow from the portion of the recessed area, non-divergent channel side walls and a trailing channel end closed to the fluid flow and forward of a localized region of the third bearing surface.
摘要:
A floating-type head slider having a rail plane that functions as an air bearing in accordance with a kinetic pressure of an air flow caused by rotation of a recording medium, that supports a recording/reproducing device for recording and reproducing information, and that keeps a predetermined gap between the device and a surface of the recording medium, wherein an edge of the rail plane includes only segments of ellipses and circles, and tangent lines of the segments, preferably the edge of the rail plane is continuous to provide a floating head slider having high reliability even in a dusty environment and a recording/reproducing apparatus in which such a floating head slider is employed.