Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2008-05-27
2008-05-27
Castro, Angel (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
Reexamination Certificate
active
07379269
ABSTRACT:
A head including a write element for writing data to a magnetic media, and methods for its production are provided. A write element of the invention includes one or more of a recessed first pole, a heat sink layer, and a shortened yoke length. A method of the invention provides forming an anti-reflective layer before forming a mask layer. During photolithography the anti-reflective layer suppresses undesirable reflections off of features, such as vertical sidewalls, that otherwise limit how closely to such features portions of the mask layer can be formed.
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He Li
Hu Yining
Krounbi Mohamad T.
Zhao Ming
Carr & Ferrell LLP
Castro Angel
Prejean, Esq. Johnathan E.
Western Digital (Fremont) , LLC
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