Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chyu-Jiuh Torng0
Tong Zhao0
Hui-Chuan Wang0
Date of Patent
July 19, 2011
0Patent Application Number
121520400
Date Filed
May 12, 2008
0Patent Primary Examiner
Patent abstract
A TMR read head with improved voltage breakdown is formed by laying down the AP1 layer as two or more layers. Each AP1 sub-layer is exposed to a low energy plasma for a short time before the next layer is deposited. This results in a smooth surface, onto which to deposit the tunneling barrier layer, with no disruption of the surface crystal structure of the completed AP1 layer.
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