发明名称 |
Method for manufacturing a perpendicular magnetic write head having a leading edge tapered write pole, self aligned side shield and independent trailing shield |
摘要 |
A method for manufacturing a magnetic write head having a tapered write pole as well as a leading edge taper, and independent trailing and side magnetic shields. The method allows the write pole to be constructed by a dry process wherein the write pole material is either deposited by a process such as sputter deposition or electrically plated and the write pole shape is defined by masking and ion milling. The write pole has a stepped feature that can either be used to provide increased magnetic spacing between the trailing shield and the write pole at a location slightly recessed from the ABS or can be magnetic material that increases the effective thickness of the write pole at a location slightly recessed from the ABS. A bump structure can be further built over that stepped feature to enhance field gradient as well as reduce trailing shield saturation.
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申请公布号 |
US8347489(B2) |
申请公布日期 |
2013.01.08 |
申请号 |
US20100874116 |
申请日期 |
2010.09.01 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.;HONG LIUBO;PENTEK ARON;ZHENG YI;ZHU HONGLIN |
发明人 |
HONG LIUBO;PENTEK ARON;ZHENG YI;ZHU HONGLIN |
分类号 |
G11B5/127;H04R31/00 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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