Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2008-05-27
2008-05-27
Tugbang, A. Dexter (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603120, C029S603140, C029S603150, C216S022000
Reexamination Certificate
active
11431757
ABSTRACT:
A magnetoresistive film is formed on the surface of a lower electrode layer in a method of making a current-perpendicular-to-the-plane structure magnetoresistive element. The magnetoresistive film includes a lower portion and an upper portion overlaid on the lower portion. The lower portion includes at least a pinned magnetic layer. The upper portion includes at least a free magnetic layer. A pair of domain control magnetic layers is formed to sandwich the magnetoresistive film. An insulator film is formed to cover over the domain control magnetic layers. The upper portion is subjected to an etching process. The domain control magnetic layers are reliably prevented from being removed during the etching process. Accordingly, the domain control magnetic layers are allowed to reliably sandwich the upper portion of the magnetoresistive film in the aforementioned manner.
REFERENCES:
patent: 5729410 (1998-03-01), Fontana et al.
patent: 6151193 (2000-11-01), Terunuma et al.
patent: 6621666 (2003-09-01), Miyauchi et al.
patent: 07-296340 (1995-11-01), None
patent: 10-163544 (1998-06-01), None
patent: 10-163545 (1998-06-01), None
patent: 11-175925 (1999-07-01), None
patent: 11-232615 (1999-08-01), None
patent: 11-296815 (1999-10-01), None
patent: 11-296821 (1999-10-01), None
patent: 2000-076627 (2000-03-01), None
patent: 2000-348311 (2000-12-01), None
patent: 2001-298227 (2001-10-01), None
Eguchi Shin
Ikeda Junya
Kamata Chikayoshi
Tanaka Atsushi
Greer Burns & Crain Ltd.
Tugbang A. Dexter
LandOfFree
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