Method for extended self-pinned layer for a current...

Details Method for extended self-pinned layer for a current... Method for extended self-pinned layer for a current...

2007-02-06

2007-02-06

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603070, C029S603130, C360S314000, C360S324110, C360S324120

Reexamination Certificate

active

10627546

ABSTRACT:
A Giant Magneto-Resistive (GMR) sensor (900) having Current Perpendicular to Plane (CPP) structure is formed providing an extended first pinned layer (914) as compared to second pinned layer (912) and free layer (910). Increased magnetoresistance changes, increased pinning strength, increased thermal stability, and decreased susceptibility to Electro-Static Discharge (ESD) events is realized by maintaining equivalent current densities through free layer (910) and second pinned layer (912), while decreasing the relative current density through first pinned layer (914).

REFERENCES:
patent: 5768069 (1998-06-01), Mauri
patent: 6271997 (2001-08-01), Gill
patent: 6407890 (2002-06-01), Gill
patent: 0 628 835 (1994-12-01), None

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