Coating processes – Magnetic base or coating
Reexamination Certificate
2008-01-15
2008-01-15
Bashore, Alain L. (Department: 1762)
Coating processes
Magnetic base or coating
C427S128000, C427S131000, C029S603270
Reexamination Certificate
active
07318947
ABSTRACT:
A method and system for providing a magnetic element are described. The method and system include providing a pinned layer, fabricating a metallic spacer layer and oxidizing a portion of the spacer layer in an environment including at least oxygen and a gas inert with respect to the spacer layer to provide an oxide layer. The method and system also include creating a free layer. The oxide layer is between a remaining metallic portion of the spacer layer and the free layer. In one aspect, the system includes a chamber and a gas diffusion apparatus within the chamber. The gas diffusion apparatus includes a plurality of nozzles and defines a plane. The gas exits each of the plurality of nozzles in a cone having an apex angle. The nozzles are directed at a nozzle tilt angle of at least half of the apex angle from the plane and the spacer layer.
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Funada Shin
Park Chang-Man
Rana Amritpal S.
Scott Daniel E.
Bashore Alain L.
Strategic Patent Group
Western Digital (Fremont) , LLC
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