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.