Patent ID: 7325294

Claim:
A method of making first and second read wires and first and second write wires on a substrate comprising the steps of: forming an electrically conductive first seed layer on the substrate; forming a nonmagnetic electrically conductive bottom shield layer on the seed layer; forming an electrically nonconductive bottom insulation layer on the bottom shield layer; forming a first forming layer on the bottom insulation layer with first, second, third and fourth openings formed within the first forming layer down to the bottom insulation layer; forming electrically conductive wire material into the openings in the first forming layer so as to form said first and second read wires and said first and second write wires; removing the first forming layer; forming an electrically nonconductive top insulation layer on the bottom insulation layer about and on top of each of the first and second write wires and the first and second read wires; forming a second forming layer on a top surface of the top insulation layer with first, second, third, fourth and fifth openings formed within the second forming layer down to the top insulation layer; ion milling portions of the top insulation layer exposed by the openings in the second forming layer down to the bottom shield layer; removing the second forming layer; forming nonmagnetic electrically conductive middle shield layers in first, second, third, fourth and fifth openings formed within the top insulation layer and in electrical contact with the bottom shield layer; forming an electrically conductive seed layer on top of the middle shield layers and the top insulation layer; and forming a nonmagnetic electrically conductive top shield layer in contact with said top of the middle shield layer.