Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2007-12-28
2011-10-18
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S603070, C029S603130, C029S603140, C360S324100, C360S324110, C438S003000
Reexamination Certificate
active
08037593
ABSTRACT:
A method for manufacturing a magnetoresistive sensor that decreases the stack height of the sensor. The method includes forming a sensor structure having at its top, a Ru layer and a Ta layer over the Ru layer. An annealing process is performed to set the magnetization of the pinned layer of the sensor structure. After the annealing process has been completed and the Ta layer is no longer needed, an ion milling process is performed to remove the Ta layer.
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Ho Kuok San
Hong Ying
Jayasekara Wipul Pemsiri
Mauri Daniele
Hitachi Global Storage Technologies - Netherlands B.V.
Phan Thiem
Zilka-Kotab, PC
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