Title :
Study on ESD phenomena of magnetic head by 1ns pulse ESD
Author :
Ohtsu, Takayoshi ; Kataoka, Kouji
Author_Institution :
Hitachi Global Storage Technol. Japan, Ltd., Odawara, Japan
Abstract :
In order to study the effect of ESD(Electro Static Discharge) with nano pulse width for GMR(Giant Magneto Resistive) heads, transfer curves of GMR heads using high field QST(Quasi Static Tester) were investigated. Transfer curves of GMR heads vary in waveform by applying of ESD damage, but there are many kinds of waveforms of transfer curves of after ESD damaged heads. It was found that the degradation of pinned layer was caused by nano pulse ESD and the phenomena were detected by high field QST.
Keywords :
electrostatic discharge; giant magnetoresistance; magnetic heads; ESD damage; ESD phenomena; GMR head; electro static discharge; giant magneto resistive head; high field QST; magnetic head; nano pulse ESD; nano pulse width; pinned layer degradation; quasi static tester; transfer curve; Degradation; Electrostatic discharge; Magnetic domains; Magnetic fields; Magnetic heads; Magnetic hysteresis; Magnetization; Magnetostriction; Resistance heating; Testing;
Conference_Titel :
Electromagnetic Compatibility (APEMC), 2010 Asia-Pacific Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5621-5
DOI :
10.1109/APEMC.2010.5475878
