摘要:
A head slider for a magnetic disk drive is provided. The head slider includes a leading edge, a trailing edge, an inner diameter side and an outer diameter side of an air bearing surface. The head slider further includes a first recess on the air bearing surface of the head slider, a second recess on the air bearing surface of the head slider wherein the second recess is deeper than the first recess and a third recess on the air bearing surface of the head slider wherein the third recess is deeper than the second recess and is disposed within the second recess, forming a first pocket.
摘要:
A disk drive. The disk drive includes a disk and a head-slider. The head-slider includes an air-bearing surface. The air-bearing surface includes a trailing-edge rail surface, an inner trailing-edge pad, and an outer trailing-edge pad. The pad surface of the outer trailing-edge pad includes a straight outer edge slanting outward; and, the angle of the outer edge with respect to the longitudinal direction of the head-slider is β1. The pad surface of the inner trailing-edge pad includes a straight inner edge slanting inward; and, the angle of the inner edge with respect to the longitudinal direction of the head-slider is β2. For absolute values of skew angles at an outermost data track position and an innermost data track position on the disk that are denoted by α1 and α2, respectively, the following conditions are satisfied: α2≦β1,α1+β1≦90°, and α1≦β2,α2+β2≦90°.
摘要:
A head-slider which is configured to fly above a magnetic-recording disk. The head-slider includes a disk-facing side, which faces the magnetic-recording disk. The disk-facing side includes a plurality of surfaces including at least: a step bearing surface; a rail surface, which protrudes toward the magnetic-recording disk and is configured to exert a positive pressure; a deep-recessed surface, which is formed deeper than the step bearing surface and is configured to exert a negative pressure; an extended lateral surface, which is formed at substantially a same depth as the step bearing surface and disposed outside the deep-recessed surface in a width direction of the head-slider; and, an extended rear surface, which is formed at substantially the same depth as the step bearing surface and disposed at a trailing edge of the head-slider, and contiguous with the extended lateral surface.
摘要:
Embodiments of the present invention provide a slider that may suppress contamination from being attached to the flying surface of the slider without influence on reduction of the flying height of the slider, and a method for producing the same. According to one embodiment, ions exerting an effect of decreasing surface energy are implanted in the whole surface of a flying surface of a magnetic head slider except for a front rail surface and a center rail surface. According to this, contamination is prevented from being attached to a front step bearing surface, a side step bearing surface, a center step bearing surface and a negative pressure groove where contamination is particularly liable to be attached in the flying surface of the magnetic head slider, so as to suppress destabilization in flying of the slider. The ion implantation in the whole surface of the flying surface of the magnetic head slider increases the surface roughness of the front rail surface and the center rail surface, but in the case where ions are implanted by excepting the front rail surface and the center rail surface as in accordance with embodiments of the invention, contamination may be effectively prevented from being attached to the flying surface without increase in surface roughness, whereby destabilization in flying of the slider may be suppressed.
摘要:
Embodiments of the invention provide Femto and below form factor magnetic head slider designs both capable of minimizing reduction of its flying height at high altitude and lower flying height sensitivity on manufacturing process tolerance. In one embodiment, the air bearing surface of a magnetic head slider includes a plurality of inlet rails respectively having inlet rail surfaces, a step bearing surface extending at a predetermined first depth from a reference plane including the inlet and the outlet rail surfaces, a negative surface extending in a plane at a predetermined second depth greater than the first depth from the reference plane, longitudinal carbon islands of a predetermined height formed on the inlet rails, and an outlet rail having an outlet rail surface flush with the inlet rail surfaces and holding a magnetic R/W head. The step bearing surface extends at a predetermined first depth from a reference plane. The air bearing surface further includes two or more stepped leading air flow surfaces and three or more rising wall profiles.
摘要:
Embodiments of the present invention provide a slider that may suppress contamination from being attached to the flying surface of the slider without influence on reduction of the flying height of the slider. Ions exerting an effect of decreasing surface energy are implanted in the whole surface of a flying surface of a magnetic head slider except for a front rail surface and a center rail surface. According to this, contamination is prevented from being attached to a front step bearing surface, a side step bearing surface, a center step bearing surface and a negative pressure groove where contamination is particularly liable to be attached in the flying surface of the magnetic head slider, so as to suppress destabilization in flying of the slider.
摘要:
Embodiments in accordance with the present invention provide a magnetic head slider capable of securing a larger flying margin even when position variations occur at the time of flying. Embodiments of the present invention also provide a magnetic head slider having an excellent flying following capability. A read element and a write element of a magnetic head slider are arranged on a spherical or ellipsoidal projection and this projection is formed on a thin film magnetic head part. This may prevent a flying margin from being reduced by variations in flying position and may prevent a manufacturing step from being caused on the spherical or ellipsoidal projection. Moreover, by making the constituent ratio of the thin film magnetic head part on an air-bearing surface of the magnetic head slider 100 to be 7% or more, the read element and the write element are arranged at a pressure center position on the center rail surface of the air-bearing surface. This may enhance a following capability when the slider flies.
摘要:
A compact slider has a reduced area of bearing surfaces, thus remarkably decreasing a lifting force obtained by an air bearing characteristic. In one embodiment, a shallowly grooved surface is disposed on an inflow side of a bearing surface of a slider, and a pair of inflow side air bearing surfaces are disposed rearward of and adjacently to the shallowly grooved surface. Side shallowly grooved surfaces are disposed on both sides rearward of the air bearing surfaces in such a manner as to extend near an outflow end. A center air bearing surface is disposed at a center in a width direction at the outflow end of the slider. A magnetic head is mounted at the center air bearing surface. A center shallowly grooved surface is disposed on an inflow side of the center air bearing surface. A deeply grooved surface is disposed at a center of the bearing surface surrounded substantially by the air bearing surfaces, the side shallowly grooved surface, and the center shallowly grooved surface. The ratio of a slider length Lx to a slider width Ly satisfies the following inequality: 1.35≦Lx/Ly≦1.8, where the slider width Ly is 0.8 mm or less.
摘要:
Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.
摘要:
A thermal flying height adjustment slider capable of being mounted on a small-sized thin film magnetic head slider is provided wherein terminals of an energizer serving as a heater prevent corrosion of pole pieces and the number of terminals is reduced. In one embodiment, one of terminals of the energizer serving as the heater is electrically connected to the lower pole piece, so that a relay terminal for a heating device is used also as the terminal for preventing the corrosion of pole pieces.