Electromagnetic interference (EMI) damage to giant magnetoresistive (GMR) recording heads

被引：0
|
作者：
Wallash, A [1 ]
Smith, D [1 ]
机构：
[1] Quantum Chem Corp, Milpitas, CA 95035 USA
来源：
ELECTRICAL OVERSTRESS/ELECTROSTATIC DISCHARGE SYMPOSIUM PROCEEDINGS | 1998年
关键词：
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
It is shown that giant magnetoresistive (GMR) recording heads can be damaged by electromagnetic interference (EMI) from a remote electrostatic discharge (ESD) event. An EMI test board is described and used to quantify EMI damage thresholds for a dipole or loop antenna attached to a GMR head. A practical example of EMI damage during resistance measurement is studied. SEM failure analysis after EMI testing shows melting damage to the GMR sensor that is similar in appearance to the damage caused by direct-contact ESD damage. It is concluded that it is important to control EMI during handling operations that involve any wires connected to the GMR recording head.
引用
收藏
页码：368 / 374
页数：7
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