Patent ID: 6305072
Filing Date: 2001-10-23
Classification: B82Y,G11B,Y10T

Abstract:
A manufacturing method of a magnetic head comprising a pair of magnetic poles comprising a lower magnetic pole and an upper magnetic pole, formed on the lower magnetic pole, and opposed to each other with a magnetic gap therebetween, the method comprising:forming, as part of the lower magnetic pole, a first convex portion corresponding to a recording track;forming a non-magnetic material layer possessing a second convex portion conformed to the first convex portion over the lower magnetic pole;forming a planarization layer surrounding the second convex portion;forming, by etching the non-magnetic material layer above the first convex portion by making use of the planarization layer as a mask, a concave portion, the concave portion being self-aligned to the first convex portion; andforming, inside the concave portion of the non-magnetic material layer, the upper magnetic pole.