| http://www.w3.org/ns/prov#value | - A thin film magnetic head equipped on a substrate thereof with a lower pole, an upper pole, an insulating layer interposed between both of said poles and isolating them from each other both electrically and magnetically at portions other than their junction and a coil disposed in said insulating layer, wherein the main portion of said coil consists of copper, and the upper surface of the main port
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