Method of making a write head before read head constructed merged magnetic head with track width and zero throat height defined by first pole tip

摘要

A method makes a merged magnetic head that has an air bearing surface and read and write head portions wherein the write head portion has a pole tip, yoke and back gap regions. A method of making the write head comprises steps of forming first and second pole pieces wherein the first pole piece has a first pole tip and the second pole piece has a second pole tip, forming a gap layer which separates the pole tips in the pole tip region and connecting the first and second pole pieces in the back gap region, forming an insulation stack with a write coil embedded therein between the first and second pole pieces in the yoke region and forming the first pole tip with a width at the air bearing surface that defines a track width of the write head portion. The read head portion is formed on the write head portion with a first shield layer which is a common layer with the second pole piece.