Air bearing design producing steeper ramp profile near the laser texture zone
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsSanford A. Bolasna, Soo-Choon Kang
Life of this patent
Estimating the term…
Abstract
A dual etch depth slider air bearing surface includes a front pad disposed along the front and partially along the sides of the slider and a rear pad partially disposed along the rear of the slider, wherein a skewed center rail connects the front pad to the rear pad. Extending above the rear pad is a V-shaped ABS pad and extending above the front pad are two leading edge ABS pads that are separated by a channel towards the longitudinal center of the slider. The design enables the slider to fly much higher over the landing zone of the disk than at the data zone and provides for a steep take off profile followed by a rapid descend over the data zone.
Claims18
An air bearing slider for supporting a transducer over a rotating recording medium having a relatively smooth data zone and at least one textured zone, comprising:
- a support structure having a leading edge and a trailing edge relative to the motion of the recording medium, and a longitudinal axis along the length of the support structure;
- and an air bearing surface configured on the support structure to face the recording medium, said air bearing surface including:
- a front pad defined on the support structure near the leading edge, a leading ABS pad defined on the front pad, wherein the leading ABS pad covers less than area of the front pad, a rear pad defined on the support structure near the trailing edge, and a rail defined on the support structure interconnecting the front pad and the rear pad, wherein the rail is generally diagonal with respect to the longitudinal axis.
A suspension assembly for supporting a slider in relation to a recording medium in a magnetic disk drive, comprising:
- a suspension arm;
- an air bearing slider supported at a distal end of the suspension arm, said slider comprising:
- a support structure having a leading edge and a trailing edge relative to the motion of the recording medium, and a longitudinal axis along the length of the support structure;
- and an air bearing surface configured on the support structure to face the recording medium, said air bearing surface including:
- a front pad defined on the support structure near the leading edge, a leading ABS pad defined on the front pad, a rear pad defined on the support structure near the trailing edge, and a rail defined on the support structure interconnecting the front pad and the rear pad, wherein the rail is generally diagonal with respect to the longitudinal axis.
A magnetic disk drive, comprising:
- a magnetic recording medium with a data surface of concentric data tracks having a relatively smooth data zone and at least one textured zone;
- a motor drive for rotating the recording medium;
- an air bearing slider comprising:
- a support structure having a leading edge and a trailing edge relative to the motion of the recording medium, and a longitudinal axis along the length of the support structure;
- an air bearing surface configured on the support structure to face the recording medium, said air bearing surface including:
- a front pad defined on the support structure near the leading edge, a leading ABS pad defined on the front pad, a rear pad defined on the support structure near the trailing edge, and a rail defined on the support structure interconnecting the front pad and the rear pad, wherein the rail is generally diagonal with respect to the longitudinal axis;
- a transducer attached to the trailing edge of the slider;
- an actuator assembly coupled to the slider for pivotally positioning said slider relative to the recording medium to selected tracks on the data surface;
- and an electronic module for controlling the operations of the motor drive and actuator assembly and processing data read from and written to the data surface.
An air bearing slider for supporting a transducer over a rotating recording medium having a relatively smooth data zone and at least one textured zone, comprising:
- a support structure having a leading edge and a trailing edge relative to the motion of the recording medium, and a longitudinal axis along the length of the support structure;
- and an air bearing surface configured on the support structure to face the recording medium, said air bearing surface including:
- a front pad defined on the support structure near the leading edge, wherein the front pad comprises a leading ABS pad, wherein the leading ABS pad includes a first front rail and a second front rail separated by a channel across the leading edge of the support structure, wherein the first front rail has a first leading edge that is skewed at a first angle with respect to the leading edge of the support structure, and wherein the second front rail has a second leading edge that is skewed at the first angle with respect to the leading edge of the support structure, a rear pad defined on the support structure near the trailing edge, and a rail defined on the support structure interconnecting the front pad and the rear pad.
An air bearing slider for supporting a transducer over a rotating recording medium having a relatively smooth data zone and at least one textured zone, comprising:
- a support structure having a leading edge and a trailing edge relative to the motion of the recording medium, and a longitudinal axis along the length of the support structure;
- and an air bearing surface configured on the support structure to face the recording medium, said air bearing surface including:
- a front pad defined on the support structure near the leading edge, wherein the front pad comprises a leading ABS pad, which defines a cavity in the air bearing surface in which the rail is exposed, the leading ABS pad including a front rail, said front rail has a leading edge that is skewed at an angle with respect to the leading edge and at a first direction to a first side of the longitudinal axis, a rear pad defined on the support structure near the trailing edge, and a rail defined on the support structure interconnecting the front pad and the rear pad, wherein the rail is generally diagonal in a second direction to a second side of the longitudinal axis.
Dependencies are inferred from the claim text.