发明名称 |
Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layer |
摘要 |
A PMR writer with a tapered main pole layer and tapered non-magnetic top-shaping layer is disclosed that minimizes trailing shield saturation. A second non-magnetic top shaping layer may be employed to reduce the effective TH size while the bulk of the trailing shield is thicker to allow a larger process window for back end processing. A sloped surface with one end at the ABS and a second end 0.05 to 0.3 microns from the ABS is formed at a 10 to 80 degree angle to the ABS and includes a sloped surface on the upper portion of the main pole layer and on the non-magnetic top shaping layer. An end is formed on the second non-magnetic top shaping layer at the second end of the sloped surface followed by forming a conformal write gap layer and then depositing the trailing shield on the write gap layer and along the ABS.
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申请公布号 |
US2009116145(A1) |
申请公布日期 |
2009.05.07 |
申请号 |
US20070982597 |
申请日期 |
2007.11.02 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
GUAN LIEJIE;SMYTH JOE;DOVEK MORIS;SASAKI YOSHITAKA;HAN CHERNG-CHYI |
分类号 |
G11B5/127 |
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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