Patent ID: 7367112
Filing Date: 2008-05-06
Classification: G11B,Y10T

Abstract:
1. A method for fabricating a thin film magnetic recording head for perpendicular recording comprising the steps of: forming a shaping pad of ferromagnetic material for a write head on a wafer, the shaping pad terminating prior to a predetermined plane for an air-bearing surface; depositing a first thin film of ferromagnetic material for a pole tip over the wafer; patterning a first mask over the first thin film of ferromagnetic material for the pole tip to protect a selected area for the pole tip, the first mask having voids on first and second sides of the selected area for the pole tip defining an initial shape for first and second side shields and a width of the pole tip; removing the first thin film of ferromagnetic material under the voids forming sidewalls of the pole tip; depositing a thin film of a nonmagnetic material over the wafer including on the sidewalls of the pole tip; depositing a thin film of a magnetic material over the wafer for the first and second side shields; removing the first mask; patterning a second mask on the wafer defining a final shape for the pole tip and defining a final shape for the first and second side shields, the final shape for the pole tip overlapping at least a portion of the shaping pad; trimming the pole tip and first and second side shields to the final shape for the pole tip and the first and second side shields by removing materials not protected by the second mask; and removing the second mask.