Magnetic read head with dual layer lead

Details Magnetic read head with dual layer lead Magnetic read head with dual layer lead

2005-12-20

2005-12-20

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06977800

ABSTRACT:
A read head has a bottom lead made of material that is relatively polish resistant and a top lead layer that polishes down more easily than the bottom layer. With this structure, when the layers are deposited and then polished down, the top layer recesses away from the sensor (and bottom lead layer) in a controlled fashion, providing an acceptable lead structure that reduces the mismatch between the read head physical read width and magnetic read width.

REFERENCES:
patent: 6813121 (2004-11-01), Pinarbasi
patent: 2003/0053265 (2003-03-01), Terunuma et al.
patent: 2003/0058587 (2003-03-01), Hasegawa et al.
patent: 2004/0027731 (2004-02-01), Hasegawa et al.

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