Semiconductor device manufacturing: process – Having magnetic or ferroelectric component
Reexamination Certificate
2010-12-17
2011-11-01
Le, Dung A. (Department: 2818)
Semiconductor device manufacturing: process
Having magnetic or ferroelectric component
C438S048000, C438S052000, C360S324110, C324S249000, C428S811500
Reexamination Certificate
active
08048686
ABSTRACT:
The invention relates to a method for producing a device comprising magnetic blocks magnetized in different directions, comprising steps of:a) forming, in a stack of one or more layers of at least one antiferromagnetic material and one or more layers of at least one ferromagnetic material resting on a substrate, at least one first block and at least one second block, said blocks being longilineal and separate and extending respectively in a first main direction and in a second main direction, the first and the second main direction forming between them a first non-zero angle α,b) annealing said blocks at a temperature greater than the ordering temperature of said antiferromagnetic material or than the blocking temperature or than the Néel temperature of said antiferromagnetic material.
REFERENCES:
patent: 7160738 (2007-01-01), Deak
patent: 2003/0169543 (2003-09-01), Fujikata et al.
patent: 2004/0137275 (2004-07-01), Jander et al.
patent: 2009/0289747 (2009-11-01), Duraffourg et al.
Commissariat a l'Energie Atomic
Le Dung A.
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