Method of Forming a PMR Writer Device with Multi-Level Tapered Write Pole
AssigneeHeadway Technologies, Inc.
InventorsZhigang Bai, Kowang Liu, Yan Wu, Moris Dovek
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AssigneeHeadway Technologies, Inc.
InventorsZhigang Bai, Kowang Liu, Yan Wu, Moris Dovek
Estimating the term…
A perpendicular magnetic recording (PMR) head is fabricated with a multi-level tapered write pole which creates an efficient channeling of magnetic flux to the pole tip. The write pole comprises a main pole with a tapered tip on which is formed at least one yoke that has a tapered edge. The edge of the yoke is recessed from the ABS of the tapered tip, giving the write pole a stepped profile. The tapered tip can be two sloped surfaces that are symmetric about a mid plane of the main pole or a single sloped edge on the leading side or the trailing side of the pole. The yoke structure can consist of a single yoke formed on one side of the main pole or it can consist of two yokes formed symmetrically on both the leading and trailing sides of the main pole.
A method of forming a multi-level tapered write pole for a PMR head, comprising:
Dependencies are inferred from the claim text.