Method for manufacturing a magnetic write element

Details Method for manufacturing a magnetic write element Method for manufacturing a magnetic write element

2005-03-01

2005-03-01

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603070, C029S603130, C029S603140, C029S603150, C029S603250, C360S121000, C360S123090, C360S125330, C360S317000, C427S127000, C427S128000, C261S022000, C261S038000, C261S041200

Reexamination Certificate

active

06859997

ABSTRACT:
The present invention provides a magnetic write element for use in a magnetic data recording system such as a disk drive. The invention provides a method of manufacturing a well defined coil, which avoids the problem of shallow wall angle problems exhibited by prior art methods due to coil mask shrinkage during high temperature bake. A series of trenches are provided in the coil mask, the trenches being shallower than the coil pattern, and not extending completely through the coil pattern. During the high temperature baking process shrinkage of the coil mask will be absorbed by the trenches and not transferred to the coil pattern, preventing deformation of the coil wall portion of the mask.

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“Nonlinear, eddy current damped, thin-film write head model”; Klaassen, K.B.; Hirko, R.G.; Magnetics, IEEE Transactions on , vol.: 32, Issue: 5, Sep. 1996; pp.:3524-3526.

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