Method of making magnetic head having narrow pole tip and fine pitch coil

A hard disk drive comprising:

• at least one hard disk being fabricated for rotary motion upon a disk drive;
• at least one magnetic head adapted to fly over said hard disk for writing data on said hard disk, said magnetic head including:
• a substrate;
• a read head being fabricated upon said substrate;
• a P1 pole being fabricated upon said read head;
• an insulation layer being fabricated upon said P1 pole;
• a P2 pole tip seed layer being fabricated upon portions of said insulation layer;
• a dielectric layer being fabricated upon said P2 pole tip seed layer and upon said insulation layer;
• a P2 pole tip being fabricated upon said P2 pole tip seed layer and within said dielectric material layer;
• a back gap piece being fabricated within said dielectric material layer and in magnetic interconnection with said P1 pole;
• an induction coil seed layer being fabricated in part upon said insulation layer and in part upon portions of said dielectric material layer;
• an induction coil being fabricated upon said induction coil seed layer and within said dielectric material layer;
• a second insulation layer being fabricated upon said induction coil;
• a P2 pole yoke being fabricated upon said second insulation layer in magnetic interconnection with said P2 pole tip and with said back gap piece;
• an encapsulation layer being fabricated above said P2 pole yoke.

A method for fabricating a magnetic head comprising the steps of:

• fabricating a read head upon a substrate;
• fabricating a P1 pole upon said read head;
• fabricating an insulation layer upon said P1 pole;
• fabricating an RIE etchable dielectric material layer upon said insulation layer;
• fabricating trenches within said dielectric material layer, including a P2 pole tip trench, an induction coil trench and a back gap piece trench;
• simultaneously fabricating a P2 pole tip within said P2 pole tip trench and a back gap piece within said back gap piece trench, such that said back gap piece is magnetically interconnected with said P1 pole;
• fabricating an induction coil within said induction coil trench;
• fabricating a second insulation layer upon said induction coil;
• fabricating a P2 pole yoke above said second insulation layer in magnetic interconnection with said P2 pole tip and said back gap piece;
• fabricating an encapsulation layer above said P2 pole yoke.