Seagate Technology Incorporated

Yan Dong

Jianhua Xue

Wei Tian

Huaqing Yin

Kirill A Rivkin

Joseph Mundenar

Lei Lu

Jian Zhong

Yong Luo

Gregory P Wakeham

Finger ring

A write head having a write pole tip. The write pole tip includes a bearing surface and a sidewall extending from the bearing surface to a rear end of the write pole tip. The sidewall has a first shape (e.g., a straight-line sidewall shape) substantially at the bearing surface and a second shape (e.g., a multi-segment sidewall shape or a curved sidewall shape) between the bearing surface and the rear end.

Write pole with varied sidewall shape

The disclosed technology includes a storage device including an interlaced magnetic recording (IMR) system, and a transducer head, including two writers, each writer including a write pole, wherein a width of a first write pole in a cross-track direction is substantially greater than a width of a second write pole in the cross-track direction, and wherein a down-track width of a front shield gap of the first write pole is substantially similar to down-track width of a front shield gap of the second write pole. In another implementation, the storage device includes an IMR system, and a transducer head, including two writers, each writer including a write pole, wherein a width of the first write pole in a cross-track direction is substantially greater than a width of a second write pole in a cross-track direction, and wherein a cross-track width of a side shield gap of the first write pole is substantially similar to a cross-track width of a side shield gap of the second write pole.

Dual writer design in interlaced magnetic recording

The present application relates to a write gap structure for a magnetic recording head. In illustrated embodiments, the write gap structure includes multiple write gap segments along a beveled pole tip surface between a top edge and a bottom edge of the beveled pole tip surface to provide a narrow write gap proximate to the air bearing surface and a larger write gap behind the air bearing surface. In illustrated embodiments, the narrow write gap segment is formed between the beveled pole tip surface and a lower back surface of front shield and the larger write gap is formed between the beveled pole tip surface and an upper back surface of the front shield.

Write gap structure for a magnetic recording head

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Chanhassen, MN, United States of America

Yan Dong