Patent ID: 7268975

Claim:
A magnetic write head, comprising: a first insulating layer on a shield layer a lower magnetic pole on said first insulating layer; centrally disposed within said lower magnetic pole, a cavity having first sidewalls and a floor; in said cavity: a second insulating layer in the form of a low pedestal on said floor; on said pedestal a lower coil of conductive material; a third insulating layer that covers said pedestal and lower coil; a fourth insulating layer on said third insulating layer; on said fourth insulator, an upper coil of conductive material that is connected to said lower coil by a conductive via; a fifth insulating layer on said upper coil and said fourth insulating layer; a sixth insulating layer on said fifth insulating layer; in said sixth insulating layer, a shallow trench, filled with a seventh insulating layer, having sloping second sidewalls, said second sidewalls overlapping said first sidewalls in one area; over said cavity: a non-magnetic gap layer on said seventh insulating layer and on all of said lower magnetic pole except for a flux transmission area located on said lower pole away from said sidewall overlapping area; a layer of a high magnetic moment material on said gap layer and on said flux transmission area; and on said high magnetic moment layer, an upper magnetic pole.