A magnetic head (slider) for perpendicular recording which requires no
lapping is described. The head is fabricated with an air bearing surface
that is parallel to the wafer surface. The coil and pole pieces are
formed from thin films disposed parallel to the air bearing surface.
Standard lithographic techniques can be used to define the shapes, gaps
and pole piece dimensions. Non-rectilinear shapes can be formed; for
example, side shields that conform around the write pole piece region.
The thickness of the main and return pole pieces are controlled by the
deposition process rather than by lapping. The saw cuts used to separate
the individual sliders from the rest of the wafer are perpendicular to
the air-bearing surface and do not pass through any critical features.