DocumentCode
3265029
Title
Pinned layer reversal effect on tunneling magnetoresistive heads caused by dynamic fly height heater voltage
Author
Sa-ngiamsak, Chiranut ; Harnsoongnoen, Sanchai ; Sompongse, Duangporn
Author_Institution
Electr. Eng. Dept., Khon Kaen Univ., Khon Kaen, Thailand
fYear
2011
fDate
20-22 Dec. 2011
Firstpage
424
Lastpage
427
Abstract
Pinned layer reversal (PLR) causes instability upon magnetic recording heads. PLR effects on giant magnetoresistive heads are well understood unlike tunneling magnetoresistive heads. Dynamic fly height (DFH) heater is used as a controller of the flying height of the head. This work presents the PLR phenomenon caused by DFH heater voltage. Experimental results reveal the threshold voltage of DFH heater inducing PLR phenomenon is 3.35V which is lower than that of the oxide breakdown. Effect of direction and read biasing voltage level was also investigated.
Keywords
giant magnetoresistance; magnetic recording; tunnelling magnetoresistance; dynamic fly height heater voltage; giant magnetoresistive heads; magnetic recording heads; pinned layer reversal effect; tunneling magnetoresistive heads; voltage 3.35 V; Breakdown voltage; Heating; Magnetic heads; Magnetic tunneling; Resistance; Stress; Tunneling magnetoresistance;
fLanguage
English
Publisher
ieee
Conference_Titel
System Integration (SII), 2011 IEEE/SICE International Symposium on
Conference_Location
Kyoto
Print_ISBN
978-1-4577-1523-5
Type
conf
DOI
10.1109/SII.2011.6147486
Filename
6147486
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