G11B5/00821

TAPE HEAD AND SYSTEM HAVING ASYMMETRICAL CONSTRUCTION
20180122409 · 2018-05-03 ·

According to one embodiment, a method includes determining a first distance from a sensor to a first edge closest thereto, where the sensor is positioned between a lower shield and the first edge, selecting a first wrap angle based on the first distance for inducing tenting of a moving magnetic recording tape in a region above the sensor, determining a second distance from a second edge to the sensor, and selecting a second wrap angle based on the determined second distance for affecting or not affecting the tenting of a moving magnetic recording tape in the region above the sensor.

Protecting a sensitive device from corrosion

A product according to one embodiment includes a tape having an applicator portion for applying an organic coating to a magnetic head; the organic coating on the applicator portion of the tape; and a lubricant on a data portion of the tape. The lubricant has a different composition than the organic coating. A method for protecting a magnetic head according to one embodiment includes applying an organic coating to a magnetic head using the foregoing product.

Abrasion test methods and devices

A method according to one embodiment includes measuring an initial coating thickness on a tape bearing surface of a module in a carrier, running a tape across the tape bearing surface, and at intervals, measuring a residual thickness of the coating.

Mass production of multichannel current perpendicular to plane head modules via preferred milling

A process according to one embodiment includes milling a media facing surface of a module having an array of sensors at a first angle, and milling the media facing surface of the magnetic head module at a second angle, not necessarily in that order. After the milling at the first and second angles, the media facing surface of the module is milled at a third angle between 55 degrees and 65 degrees from normal. An apparatus according to one embodiment includes a tape head module having an array of at least eight current perpendicular to plane sensors, wherein none of the sensors has a resistance more than about 10% away from the resistances of its nearest neighbors.

Systems and methods for protecting a sensitive device from corrosion

A magnetic storage system according to one embodiment includes a magnetic head having a removable organic coating thereon in an amount sufficient for reducing exposure of the head to oxidation promoting materials. The system also includes an applicator in a drive in which the magnetic head resides, the applicator being configured to apply the organic coating directly to the magnetic head without contacting the magnetic head. At least one guide is configured to create a spacing between the magnetic head and the guide, wherein the spacing is sufficient to insert the applicator into the spacing.

Tape head and system having asymmetrical construction

An apparatus according to one embodiment includes a module having a tape bearing surface, a first edge, and a second edge. A first tape tenting region extends from the first edge along the tape bearing surface toward the second edge. A transducer is located in a thin film region of the module. A distance from the first edge to the transducer is less than a distance from the second edge to the transducer. The transducer is positioned in the first tape tenting region.

Differing magnetic read sensors on a magnetic head

An apparatus according to one embodiment includes a magnetic head having multiple magnetic transducers, the transducers including read sensors. The read sensors are of at least two differing types selected from a group consisting of tunneling magnetoresistance (TMR), giant magnetoresistance (GMR), anisotropic magnetoresistance (AMR), and inductive sensors.

Monitoring of residual encrypted data to improve erase performance on a magnetic medium

In one embodiment, a product includes a magnetic medium having written thereon data in a data track. The data includes encrypted data written over unencrypted data. An indicator of a physical position on the magnetic medium that corresponds to an end of the encrypted data is stored on the product. A product according to another embodiment includes a magnetic medium having written thereon data in a data track. The data includes encrypted data written over unencrypted data. A portion of the unencrypted data is located before the encrypted data on the medium. An indicator of a physical position on the magnetic medium that corresponds to a beginning of the encrypted data is stored on the product.

METHODS FOR FABRICATING MAGNETIC WRITER STRUCTURES USING POST-DEPOSITION TILTING
20180040339 · 2018-02-08 ·

A method according to one embodiment includes forming a first portion of a thin film writer structure on a substrate, forming a portion of a write gap at an initial position, a plane of deposition of the portion of the write gap being at an angle of greater than 0 and less than 90 relative to an upper surface of the first portion in the initial position, moving the writer structure to orient the plane of deposition of the portion of the write gap more toward perpendicular to a plane corresponding to a final media-facing surface of the writer structure than the orientation of the plane of deposition of the portion of the write gap in the initial position, and fixing the writer structure in place after the moving.

PROTECTING A SENSITIVE DEVICE FROM CORROSION

A method for protecting a magnetic head according to one embodiment includes applying an organic coating to a magnetic head using a product having an applicator portion for applying an organic coating to a magnetic head. The organic coating is on the applicator portion of the tape, and a lubricant is on a data portion of the tape. The lubricant has a different composition than the organic coating. Another method for protecting a magnetic head includes applying an organic coating to a magnetic head for reducing exposure of the head to oxidation promoting materials; and storing the magnetic head. Another method includes fabricating a tape having an applicator portion for applying an organic coating to a magnetic head for reducing exposure of the head to oxidation promoting materials; applying the organic coating to the applicator portion of the tape; and applying a lubricant to a data portion of the tape.