Patent ID: 6647613
Filing Date: 2003-11-18
Classification: G11B,Y10T

Abstract:
A method for forming a magnetic write head, comprising:forming a first wafer having a first planar surface on a repeating pattern of ferrite portions separated by a non-magnetic spacer and a second surface opposite the first surface; forming a groove in the first wafer along the second surface of the first wafer, the groove positioned along each non-magnetic spacer such that the non-magnetic spacers are exposed from the second surface of the wafer; forming a second ferrite wafer having a first surface and an opposing second surface; forming a plurality of grooves in the second wafer along the first surface of the second wafer; positioning the first and second wafers such that the second surface of the first wafer faces the first surface of the second wafer and the grooves in the first wafer are aligned with the grooves in the second wafer; bonding the first wafer to the second wafer; forming a layer of photoresist on the first surface of the first wafer; removing the photoresist to expose the first surface of the first wafer except at desired locations of recording gaps over the non-magnetic spacers; and forming a layer of magnetic material on the exposed first surface of the first wafer to a depth not greater than a depth of the remaining photoresist.