Perpendicular magnetic write head with stepped write pole...

Details Perpendicular magnetic write head with stepped write pole... Perpendicular magnetic write head with stepped write pole...

2011-08-02

2011-08-02

Evans, Jefferson (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125150

Reexamination Certificate

active

07990652

ABSTRACT:
A magnetic write head for perpendicular magnetic data recording having a notched write pole for reduced magnetic core width (MCW) dependence on skew. The write pole is configured with a notch that can extend to or slightly beyond the flare point of the write pole, and is formed on the leading portion of the write pole. The notch can have a notch depth, as measured from the ABS of 50-200 nm or about 120 nm. The notch can have a notch height, measured in the down track direction that is 40-90 nm or 20-90 percent of the write pole height.

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