发明名称 |
PMR Writer Device with Multi-Level Tapered Write Pole |
摘要 |
A perpendicular magnetic recording (PMR) head is fabricated with a multi-level tapered write pole. The write pole comprises a main pole with a tapered tip on a leading edge or a trailing edge, on which is formed at least one yoke that has a tapered edge. The edge of the yoke is recessed from the ABS of the main pole, giving the head a stepped profile. The yoke can be a single yoke formed on one side of the main pole or it can be two yokes formed on both the leading and trailing sides of the main pole. The write pole structure creates an efficient channeling of magnetic flux to the ABS surface of the pole tip which produces magnetic recording field at high area densities.
|
申请公布号 |
US2013003226(A1) |
申请公布日期 |
2013.01.03 |
申请号 |
US201213608321 |
申请日期 |
2012.09.10 |
申请人 |
HEADWAY TECHNOLOGIES, INC.;BAI ZHIGANG;LIU KOWANG;WU YAN;DOVEK MORIS |
发明人 |
BAI ZHIGANG;LIU KOWANG;WU YAN;DOVEK MORIS |
分类号 |
G11B5/127;G11B5/147 |
主分类号 |
G11B5/127 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|