Thin-film magnetic head with heating means for adjusting magnetic spacing

摘要

A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing d_MS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.