Thin film magnetic head and method of manufacturing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 2004
Grant Date -
Apr 19, 2001
app pub date -
Dec 1, 2000
filing date -
Dec 7, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Provided are a thin film magnetic head and a method of manufacturing the same which can obtain sufficient overwrite properties even when a pole width is reduced. Aside from an insulating film for embedding thin film coils, an insulating film pattern made of a photoresist or the like is formed between a top pole chip and the thin film coils. A TH0 position is defined by a front edge of the insulating film pattern. The insulating film pattern has a round inclined surface near the front edge thereof, and consequently a magnetic flux smoothly flows through a top connection portion on the insulating film pattern. A region between the insulating film pattern and a front portion of a top pole is filled with the top connection portion, and thus a sufficient magnetic volume is ensured in this region. The top pole chip is partly covered with the top connection portion on at least three sides. Thus, an area of contact between the top pole chip and the top connection portion is increased, and therefore a loss of magnetic flux propagation on a boundary surface between both of them is reduced.
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