Tapered write pole for reduced skew effect

Details Tapered write pole for reduced skew effect Tapered write pole for reduced skew effect

2007-04-11

2008-09-30

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C029S603180, C029S603070

Reexamination Certificate

active

07430095

ABSTRACT:
A write pole for a read/write head of a disk drive system has a tapered surface on a leading edge thereof. Preferably, the tapered surface has a taper angle of between 0 and 20 degrees from a plane normal to the ABS. By having a write pole with a taper in this manner, sufficient write fields can be achieved even with thinner write pole tips on the ABS surface. By decreasing the thickness of the write pole tip in this manner while maintaining sufficiently high write fields, the skew profile of a write head can be decreased and areal density increased.

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Brume M. Lairson et al., Disk Drive Integration Issues for Perpendicular Recording; IEEE Transactions on Magnetics, vol. 37, No. 4, Jul. 2001.
Authors: Mochizuki; Nishida; Kawato; Okada; Kawabe; Takano Ttitle: “Study on the Write-Field Profile and Intensity of Narrow-Track-Width SPT Head” Journal of Magnetism and Magnetic Materials 235 Date: 2001; pp. 191-195.

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