A thin film magnetic head has a configuration in which a main magnetic pole film having a magnetic pole end portion on a medium opposing surface (ABS) side facing a magnetic disk, a write shield film facing the magnetic pole end portion so as to form a recording gap film on the medium opposing surface...http://www.google.com/patents/US8043515?utm_source=gb-gplus-sharePatent US8043515 - Thin film magnetic head and manufacturing method thereof
