发明名称 |
MR head lap monitor resistors |
摘要 |
A system for lapping a magnetoresistive (MR) sensor on a slider to a proper height is disclosed. The system comprises simultaneously lapping the MR lap monitor and the MR sensor positioned on the slider until a resistance of a variable resistor located within the MR lap monitor is approximately equal to a resistance of a target resistor located within the MR lap monitor. During the lapping process, a reference resistor located within the lap monitor is compared to both the variable and target resistors to prevent a lapping failure. In one preferred embodiment, the reference, target, and variable resistors are formed from a ferromagnetic metal alloy. The MR lap monitor and the MR sensor are lapped until a height of the ferromagnetic metal alloy forming the variable resistor is approximately equal to a height of the ferromagnetic metal alloy forming the target resistor.
|
申请公布号 |
US5559429(A) |
申请公布日期 |
1996.09.24 |
申请号 |
US19950421205 |
申请日期 |
1995.04.13 |
申请人 |
SEAGATE TECHNOLOGY, INC. |
发明人 |
MOWRY, GREGORY S.;GORKA, PHILLIP E.;STRAYER, BRIAN D.;KRACKE, ALAN G. |
分类号 |
G11B5/31;G11B5/39;(IPC1-7):G01N27/04;G01N19/06 |
主分类号 |
G11B5/31 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|