Seagate Technology Incorporated

Yanzhang Liu

Kirill A Rivkin

Huaqing Yin

Lei Lu

Mourad Benakli

Javier Ignacio Guzman

Zuxuan Lin

A pattern is pre-written using a pre-erase or pre-conditioning magnetic field applied within at least part of a target track of a hard disk via a first write transducer prior to the target track being written. Subsequent to the pre-writing, target user data is written to the part of the target track.

Applying a pre-erase or pre-condition field to a hard disk before writing data to the hard disk

A method of removing a magnetic domain from a slider structure, such as a shield of a write head, in a storage assembly having a storage media. The method includes passing the slider structure in close proximity to a region on the storage media having a magnetic field sufficiently large to remove a magnetic domain in the slider structure.

Reset of magnetic domains in write head via magnetic field from media

Methods of removing a magnetic domain from a slider structure, such as a shield in a write head, in a data storage assembly. The method comprises passing the slider structure in close proximity to a decaying magnetic field of at least 100 Oe and no more than 1500 Oe originating from within the storage assembly. In some implementations the decaying magnetic field has an oscillating polarity.

Reset of magnetic domains in write head via external field

The implementations disclosed herein provide for a storage device including a preamplifier that generates a write current pulse having a region of reduced slew rate that temporally correlates with a time when a magnetization of a write pole tip switches polarity.

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Eden Prairie, MN, United States of America

Yanzhang Liu