A thin-film magnetic head comprises first and second magnetic layers; a gap layer provided between the first and second magnetic layers; a coupling portion for magnetically coupling the first magnetic layer and the second magnetic layer to each other at a distance from the medium facing surface ABS;...http://www.google.de/patents/US20030151851?utm_source=gb-gplus-sharePatent US20030151851 - Thin-film magnetic head and method of manufacturing same
