Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2005-09-29
2009-11-24
Cao, Allen T (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07623325
ABSTRACT:
A method for providing an endpoint layer for ion milling of top of read sensor having top lead connection and sensor formed thereby. A cap layer includes a thin layer of an endpoint detection material, such as a conductive or insulating material, that is inserted in the cap layer. The endpoint detection material provides a good signal for endpoint detection during ion milling of the of the cap layer.
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Cao Allen T
Hitachi Global Storage Technologies - Netherlands B.V.
Merchant & Gould
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