Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-05-23
2006-05-23
Evans, Jefferson (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S322000, C360S324120
Reexamination Certificate
active
07050273
ABSTRACT:
A method for fabricating a longitudinally hard biased, bottom spin valve GMR sensor with a lead overlay (LOL) conducting lead configuration and a narrow effective trackwidth. The advantageous properties of the sensor are obtained by providing two novel barrier layers, one of which prevents oxidation of and Au diffusion into the free layer during annealing and etching and the other of which prevents oxidation of the capping layer during annealing so as to allow good electrical contact between the lead and the sensor stack.
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Chen Mao-Min
Chien Chen-Jung
Han Cherng-Chyi
Horng Cheng T.
Tong Ru-Ying
Ackerman Stephen B.
Evans Jefferson
Headway Technologies Inc.
Saile George O.
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