发明名称 |
Bilayer coil insulation for magnetic write heads to minimize pole recession |
摘要 |
A magnetic write head for use in a data recording system having first and second magnetic pole, the first pole having a P1 pedestal. An electrically conductive coil passes through a space between the first and second poles for inducing a magnetic flux through the yoke formed by the first and second poles. A bi-layer insulation layer disposed between the poles includes a layer of photoresist for preventing voids and a layer of alumina formed thereover to provide a structural brace to prevent recession of the P1 pedestal during manufacturing operations such as soda blast.
|
申请公布号 |
US7292408(B2) |
申请公布日期 |
2007.11.06 |
申请号 |
US20040903341 |
申请日期 |
2004.07.30 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
CHIU ANDREW;LEE EDWARD HIN PONG;YANG JOHN JAEKOYUN;YANG MICHAEL MING HSIANG;ZHANG SUE SIYANG |
分类号 |
G11B5/17 |
主分类号 |
G11B5/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|