A magnetic head having an improved fringing field and overwrite
capability, and a method of making the same, are described. The method
includes the acts of frame plating a pedestal over a first pole piece;
depositing an insulator over the first pole piece and plated pedestal;
chemically mechanically polishing (CMP) the top of the insulator to
expose a top of the plated pedestal; depositing a gap layer over the top
of the insulator and plated pedestal; depositing a seed layer over the
gap layer; forming a second pole piece over the seed layer; ion milling,
using the second pole piece as a mask, such that end portions of the seed
layer are removed and a central portion remains; reactive ion milling,
using the central portion of the seed layer as a mask, such that end
portions of the gap layer are removed and a central portion of the gap
layer having a width that is greater than a width of the second pole
piece is formed; and ion milling the plated pedestal, using the central
portion of the gap layer as a mask, to form a central notched structure
having angled side walls of 25 degrees.+-.24 degrees relative to normal.