Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-06-27
2009-08-11
Evans, Jefferson (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07573685
ABSTRACT:
A magnetoresistive sensor having a Ta cap layer with nitrogen added in situ during deposition. The nitrogen in the cap layer can be formed by depositing a Ta cap layer in a sputter deposition chamber having a small amount of nitrogen in an Ar atmosphere. The resulting nitrogenated cap layer exhibits reduced specular scattering, which results in improved magnetic performance of the magnetoresistive sensor.
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Lee Wen-yaung
Shatz Thomas E.
Welipitiya Dulip Ajantha
York Brian R.
Evans Jefferson
Hitachi Global Storage Technologies - Netherlands B.V.
Zilka-Kotab, PC
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