Patent ID: 7672079

Claim:
A PMR write head formed on a substrate and with a pole tip region in a main pole layer, comprising: (a) an upper portion of a pole tip having two parallel sides, a top surface, and a bottom surface that form a rectangular shape adjacent to an air bearing surface (ABS) wherein a distance between the two parallel sides is a first width along the ABS and a distance between the top and bottom surfaces of the upper portion at the ABS is a first thickness; (b) a lower portion of the pole tip having an inverted trapezoidal shape adjacent to the ABS wherein the lower portion has a top surface that is coincident with the bottom surface of the upper portion, and a bottom surface, and two non-parallel sides such that the distance between the two non-parallel sides along the bottom surface of the lower portion is a second width along the ABS that is less than said first width along the ABS, and the distance between the top surface and bottom surface of the lower portion at the ABS is a second thickness which is greater than said first thickness, said lower portion is formed on a first insulation layer and is a lesser distance from the substrate than the upper portion; (c) the first insulation layer that contacts the substrate wherein said substrate separates said PMR write head from a read head; (d) a second insulation layer contacting said first insulation layer and adjoining the two parallel sides of said upper portion and the two non-parallel sides of said lower portion, said second insulation layer has a top surface coplanar with the top surface of the upper portion; and (e) a write gap layer formed on the top surface of said upper portion.