发明名称 |
Submicron thin film inductive head with self-aligned staggered pole-tips |
摘要 |
A thin film inductive head having staggered pole-tips with a self-aligned recording gap region. The recording gap region is bounded by stepped pole-tip element with the steps made large with respect to the gap thickness. The pole-tip layers extend back from the air bearing surface to form a throat region that is also large with respect to the gap thickness. The self-aligned staggered pole-tip geometry is suitable for submicron track widths because the pole-tips may themselves be much wider and the self-aligned configuration avoids submicron masking and registration difficulties. The stepped pole-tip surfaces also eliminate the side-writing problem known in the art for overlapping thin film poles.
|
申请公布号 |
US5375023(A) |
申请公布日期 |
1994.12.20 |
申请号 |
US19920998171 |
申请日期 |
1992.12.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
JU, KOCHAN;KROUNBI, MOHAMAD T.;WANG, PO-KANG |
分类号 |
G11B5/31;(IPC1-7):G11B5/23;G11B5/127;G11B5/147 |
主分类号 |
G11B5/31 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|