Seagate Technology Incorporated

Angela Moore

Swaraj Basu

Mark Anthony Gubbins

Prim Gangmei

Marcus Benedict Mooney

Beverley R McConnell

Muhammad Asif Bashir

Aji Baby

Praphaphan Wipatawit

Sharon Hammant

A recording head that includes a bearing surface and a write pole having a front surface that forms a portion of the bearing surface. The recording head also includes a side shield for the write pole. The side shield includes a low saturation magnetization cap layer having a front surface that forms a portion of the bearing surface. The side shield also includes a main side shield layer having a saturation magnetization that is higher than a saturation magnetization value of the low saturation magnetization cap layer.

Method of forming a write head with a write pole shield having a low saturation magnetization layer

Write pole shield having a low saturation magnetization layer

A data writer can have at least a write pole laterally disposed between first and second side shields and vertically disposed between a wrap-around shield and a front shield. The write pole may be separated from the side shields and the wrap-around shield by a lamination of first and second non-magnetic layers.

Write pole wrap-around shield with gap lamination

A data storage system may have at least one data writer that incorporates a write pole that continuously extends from an air bearing surface. The write pole can be separated from the air bearing surface by a side shield that consists of a first magnetic layer positioned on the air bearing surface and a guard layer separated from the air bearing surface by the first magnetic layer. The guard layer may be configured with a different magnetic saturation flux density than the first magnetic layer.

Write pole magnetic guard

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Co. Donegal, Ireland

Angela Moore