发明申请
US20070115594A1 PERPENDICULAR MAGNETIC RECORDING HEAD HAVING MAIN MAGNETIC POLE LAYER FORMED ON HIGH-FLATNESS SURFACE, AND METHOD OF MANUFACTURING THE HEAD 失效
具有在高平坦表面形成的主磁性层的圆形磁记录头及其制造方法

PERPENDICULAR MAGNETIC RECORDING HEAD HAVING MAIN MAGNETIC POLE LAYER FORMED ON HIGH-FLATNESS SURFACE, AND METHOD OF MANUFACTURING THE HEAD
摘要:
A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed on the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily-introduce a recording magnetic field to a fore end of the main magnetic pole layer.
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