Patent classifications
Y10T29/49046
Manufacturing method for magnetic head for perpendicular magnetic recording including a pair of first side shields and a pair of second side shields
A write shield of a magnetic head includes a pair of first side shields and a pair of second side shields. The pair of first side shields each include a first side wall and a second side wall. The pair of second side shields each include a third side wall. The third side wall of one of the pair of second side shields is continuous with the first side wall of one of the pair of first side shields. The third side wall of the other of the pair of second side shields is continuous with the first side wall of the other of the pair of first side shields.
Manufacturing method for reader side shield
A magnetoresistive (MR) sensor shield shields against both down track and cross-track interference and is formed in a single deposition step. A tail portion of the shield is eliminated by including a non-magnetic material adjacent to opposite sides of a middle portion of the sensor stack.
Magnetic head for perpendicular magnetic recording including two side shields configured to enable a reduction in width of an end face of the main pole located in a medium facing surface and an increase in cross-sectional area of the main pole in the vicinity of the medium facing surface
A first side shield has a first sidewall and a second sidewall, and a second side shield has a third sidewall and a fourth sidewall. The first to fourth sidewalls have first to fourth edges, respectively, that are farthest from a top surface of a substrate. The distance between a rear end of the first edge and a rear end of the third edge in a track width direction is greater than the distance between a front end of the first edge and a front end of the third edge in the track width direction. The distance between the second edge and the fourth edge in the track width direction increases with increasing distance from the medium facing surface.
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING TWO SIDE SHIELDS CONFIGURED TO ENABLE A REDUCTION IN WIDTH OF AN END FACE OF THE MAIN POLE LOCATED IN A MEDIUM FACING SURFACE AND AN INCREASE IN CROSS-SECTIONAL AREA OF THE MAIN POLE IN THE VICINITY OF THE MEDIUM FACING SURFACE
A first side shield has a first sidewall and a second sidewall, and a second side shield has a third sidewall and a fourth sidewall. The first to fourth sidewalls have first to fourth edges, respectively, that are farthest from a top surface of a substrate. The distance between a rear end of the first edge and a rear end of the third edge in a track width direction is greater than the distance between a front end of the first edge and a front end of the third edge in the track width direction. The distance between the second edge and the fourth edge in the track width direction increases with increasing distance from the medium facing surface.
Multiple reader stacks disposed in close proximity
In accordance with one embodiment, a multi-reader can be manufactured so as to be able to read from multiple regions of a storage device contemporaneously during operation. Such a device can be configured, for example, by forming a first wall; forming a second wall; and utilizing the first wall and the second wall to form two adjacent reader stacks.
MULTIPLE READER STACKS DISPOSED IN CLOSE PROXIMITY
In accordance with one embodiment, a multi-reader can be manufactured so as to be able to read from multiple regions of a storage device contemporaneously during operation. Such a device can be configured, for example, by forming a first wall; forming a second wall; and utilizing the first wall and the second wall to form two adjacent reader stacks.
READER SIDE SHIELD
The implementations disclosed herein allow for formation of a magnetoresistive (MR) sensor shield that shields against both down track and cross-track interference. The shield can be formed in a single deposition step. In one implementation of the disclosed technology, a tail portion of the shield is eliminated by including a non-magnetic material adjacent to opposite sides of a middle portion of the sensor stack.