| 发明名称 |
MAGNETIC WRITER HAVING MULTIPLE GAPS WITH MORE UNIFORM MAGNETIC FIELDS ACROSS THE GAPS |
| 摘要 |
A magnetic device according to one embodiment includes a source of flux and a magnetic yoke coupled to the source of flux. The source of flux includes a thin film coil having multiple turns. The magnetic yoke has a pole with two or more gaps, wherein the coil turns have a non-uniform placement in the magnetic yoke for creating a higher magnetic field at one of the gaps than another of the gaps during writing. A magnetic device according to another embodiment includes a source of flux. A geometry of the magnetic pole near or at one of the gaps is different than a geometry of the magnetic pole near or at another of the gaps to help equalize fields formed at the gaps when the source of flux is generating flux. |
| 申请公布号 |
US2016133281(A1) |
申请公布日期 |
2016.05.12 |
| 申请号 |
US201614996119 |
申请日期 |
2016.01.14 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Biskeborn Robert G.;Herget Philipp;Webb Bucknell C. |
| 分类号 |
G11B5/31;G11B5/596;G11B5/265;G11B5/17;G11B5/23 |
主分类号 |
G11B5/31 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A magnetic device, comprising:
a source of flux comprising a thin film coil having multiple turns; a magnetic yoke coupled to the source of flux, the magnetic yoke having a pole with two or more gaps, wherein the coil turns have a non-uniform placement in the magnetic yoke for creating a higher magnetic field at one of the gaps than another of the gaps during writing. |
| 地址 |
Armonk NY US |
