Segmented magnetic shielding elements

Details Segmented magnetic shielding elements Segmented magnetic shielding elements

2008-11-03

2009-10-06

Pizarro, Marcos D. (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

With shielding

C438S003000, C365S171000, C257SE21665, C257S213000, C257S422000, C257S508000, C257S660000

Reexamination Certificate

active

07598597

ABSTRACT:
A second shield layer, under the master shielding layer, is added to a segmented MRAM array. This additional shielding is patterned so as to provide one shield per bit slice. The placement of longitudinal biasing tabs at the ends of these segmented shields ensures that each segmented shield is a single magnetic domain, making it highly effective as a shield against very small stray fields.

REFERENCES:
patent: 6335890 (2002-01-01), Reohr et al.
patent: 6429044 (2002-08-01), Tuttle
patent: 6867468 (2005-03-01), Sharma et al.
patent: 6940153 (2005-09-01), Spencer et al.
patent: 2002/0105058 (2002-08-01), Tuttle
patent: 2004/0043519 (2004-03-01), Sharma et al.
patent: 2004/0126905 (2004-07-01), Bhattacharyya et al.
patent: 2004/0232536 (2004-11-01), Fukuzumi
patent: 2005/0059170 (2005-03-01), Min et al.

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