变脉冲长度下GMR磁头的ESD灵敏度

Electrical Overstress/Electrostatic Discharge Symposium Proceedings 2000 (IEEE Cat. No.00TH8476) Pub Date : 2000-09-26 DOI:10.1109/EOSESD.2000.890092

D. Guarisco, M. Li

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引用次数: 12

摘要

9 Gb/in/sup 2/ GMR磁头使用可变持续时间的方脉冲进行电超应力。脉冲长度在4 ns到80 ms之间变化。对于每个脉冲长度，通过准静态测试测量磁性和物理失效阈值。研究发现，对于长脉冲(/spl gsim/1 /spl mu/s)， GMR传感器在恒定功率下失效，而在非常短的时间内(<100 ns)，系统开始逐渐过渡到绝热状态，在恒定能量下失效。

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ESD sensitivity of GMR heads at variable pulse length

9 Gb/in/sup 2/ GMR heads were subjected to electrical overstress using square pulses of variable duration. The pulse length was varied between 4 ns and 80 ms. For each pulse length, the magnetic and physical failure thresholds were measured via a quasi-static test. It is found that for long pulses (/spl gsim/1 /spl mu/s) the GMR sensors fail at constant power, whereas at very short times (<100 ns), the system starts to gradually transition to an adiabatic regime where failure occurs at constant energy.

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Electrical Overstress/Electrostatic Discharge Symposium Proceedings 2000 (IEEE Cat. No.00TH8476)

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