A perpendicular magnetic recording head includes a main magnetic pole layer having an inverted trapezoidal cross-section at the face opposing a recording medium. The main magnetic pole layer is formed by plating in a groove which is formed in a resist layer. The width of the resist layer in the track...http://www.google.fr/patents/US6836957?utm_source=gb-gplus-shareBrevet US6836957 - Method for making perpendicular magnetic recording head having inverted trapezoidal main magnetic pole layer
Method for making perpendicular magnetic recording head having inverted ...