Magnetic random access memory designs with controlled...

Details Magnetic random access memory designs with controlled... Magnetic random access memory designs with controlled...

2006-04-18

2006-04-18

Ho, Tu-Tu (Department: 2818)

Semiconductor device manufacturing: process

Making device or circuit responsive to nonelectrical signal

C257S421000, C257SE27006, C257S295000

Reexamination Certificate

active

07029941

ABSTRACT:
An MRAM array is formed of MTJ cells shaped so as to have their narrowest dimension at the middle of the cell. A preferred embodiment forms the cell into the shape of a kidney or a peanut. Such a shape provides each cell with an artificial nucleation site at the narrowest dimension, where an applied switching field can switch the magnetization of the cell in manner that is both efficient and uniform manner across the array.

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patent: 2004/0130936 (2004-07-01), Nguyen et al.
U.S. Appl. No. 10/650,600, filed Aug. 28, 2003, assigned to the same assignee.

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