发明名称 |
Write pole configuration |
摘要 |
A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. In some implementations, a length from the pole tip to the back edge is no more than 4.5 micrometers. |
申请公布号 |
US9384769(B2) |
申请公布日期 |
2016.07.05 |
申请号 |
US201514867573 |
申请日期 |
2015.09.28 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
Qiu Jiaoming;Lu Lei;Xu Xuelian |
分类号 |
G11B5/147;G11B5/60;G11B5/127 |
主分类号 |
G11B5/147 |
代理机构 |
HolzerIPLaw, PC |
代理人 |
HolzerIPLaw, PC |
主权项 |
1. A write head comprising:
a write pole including a pole tip proximate to an air-bearing surface and a back edge, with a length from the pole tip to the back edge being no more than 4.2 micrometers in a direction perpendicular to the air bearing surface, and a coil structure having two or three active turns crossing the write pole, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. |
地址 |
Cupertino CA US |