Title :
ESD protection of GMR heads in manufacturing
Author :
Wu, Fu Jin ; Wang, Xiao Min ; Zeng, Robin ; Tian, Hong
Author_Institution :
SAE Magnectics (HK) Ltd., Dongguan City, China
Abstract :
Giant magnetoresistive (GMR) sensors in magnetic recording heads are very sensitive to ESD. ESD protection therefore becomes one of most important issues in manufacturing. In this paper, we compared three types of GMR shunting methods: shunting by diode, shunting by varistor, and shunting by wire. It was found that shunting by wire is the most effective method, while shunting by diode can be used in fixtures for electrical testing.
Keywords :
electronic equipment manufacture; electronic equipment testing; electrostatic discharge; giant magnetoresistance; magnetic heads; magnetoresistive devices; protection; ESD protection; ESD sensitivity; GMR heads; GMR shunting methods; diode shunting; electrical testing fixtures; giant magnetoresistive heads; giant magnetoresistive sensors; magnetic recording heads; manufacturing; varistor shunting; wire shunting; Diodes; Electrostatic discharge; Giant magnetoresistance; Magnetic heads; Magnetic recording; Magnetic sensors; Manufacturing; Protection; Varistors; Wire;
Conference_Titel :
Electrical Overstress/Electrostatic Discharge Symposium Proceedings, 1999
Conference_Location :
Orlando, FL, USA
Print_ISBN :
1-58637-007-X
DOI :
10.1109/EOSESD.1999.819078
