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US08233235B2 PMR writer having a tapered write pole and bump layer and method of fabrication 有权
PMR写入器具有锥形写极点和凸起层及其制造方法

PMR writer having a tapered write pole and bump layer and method of fabrication
摘要:
Methods for fabrication of tapered magnetic poles with a non-magnetic front bump layer. A magnetic pole may have a tapered surface at or near an air bearing surface (ABS), wherein a thickness of the write pole increases in a direction away from the ABS. A non-magnetic front bump layer may be formed on the tapered surface of the magnetic pole and away from the ABS. The front bump layer may increase the separation distance between a shield layer and the magnetic pole near the tapered surface, thereby improving the performance of the write head.
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