Method for preventing TMR MRR drop of a slider

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United States of America Patent

PATENT NO 7552524
APP PUB NO 20080000075A1
SERIAL NO

11434518

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Abstract

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A method for preventing TMR (tunnel magneto-resistance) MRR (magneto-resistance resistance) drop of a slider, comprises steps of: positioning a row bar constructed by a plurality of slider structural bodies on a tray, each slider body having a pole tip with a TMR element; loading the tray into a processing chamber and evacuating the processing chamber to a preset pressure; introducing a processing gas containing oxygen gas into the processing chamber; and exposing the slider structural bodies to an etching means in the atmosphere of the processing gas to oxidize a surface of the TMR element to form an oxidation layer thereon. The invention also discloses a method for forming micro-texture on a surface of slider in same process, and a method for forming such a slider.

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Patent Owner(s)

  • SAE MAGNETICS (H.K.) LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Baohua DongGuan, CN 25 171
Fang, Hongxin DongGuan, CN 24 49
Ma, Hongtao DongGuan, CN 41 214

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