Appeal No. 1999-1539
Application 08/584,118
The invention is directed to a magnetic recording head
having a substrate and closure element separated by a first
gap and comprising a recording track layer deposited on the
substrate, and a patterned gap layer deposited on a flat
surface of the closure element. The first gap layer has a
known nonplanar topography along a side facing the flat
surface of the closure element. In order to prevent the
creation of localized air gaps within the first gap layer and
the closure element, the patterned gap layer is formed on the
planar surface of the closure element with a topography
inverse to that of the first gap layer. As a result, the gap
separating the substrate and the closure element is
substantially filled. Because the localized air gaps are
filled to provide structural support for the closure element,
the present invention is able to effectively reduce and/or
eliminate micro chipping during lapping or grinding of the
closure element at the time of manufacture. A further under-
1(...continued)
7, 1998.
2
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