Method for fabricating a pole tip in a magnetic transducer

Details Method for fabricating a pole tip in a magnetic transducer Method for fabricating a pole tip in a magnetic transducer

2007-03-06

2007-03-06

Olsen, Allan (Department: 1763)

Etching a substrate: processes

Forming or treating article containing magnetically...

C216S039000, C216S047000, C216S048000, C216S066000, C029S603070

Reexamination Certificate

active

10882883

ABSTRACT:
A method for fabricating a magnetic head with a trapezoidal shaped pole piece tip is described. The body of the main pole piece is deposited, then one or more layers for the pole piece tip are deposited. A bed material is deposited over the pole piece tip material. A void is formed in the bed material over the area for the pole piece tip. The void is filled with an ion-milling resistant material such as alumina preferably using atomic layer deposition or atomic layer chemical vapor deposition. The excess ion-milling resistant material and the bed material are removed. The result is an ion-milling mask formed over the area for the pole piece tip. Ion milling is then used to remove the unmasked material in the pole piece tip layer and to form a beveled pole piece tip and preferably a beveled face on the main pole piece.

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