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Application filed by Showa Denko Hd Trace CorpfiledCriticalShowa Denko Hd Trace Corp
Priority to TW086116863ApriorityCriticalpatent/TW373169B/en
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Publication of TW373169BpublicationCriticalpatent/TW373169B/en
The invention provides a process for preparing a magnetic recording disc for use in the hard disc, comprising a round disc type non-magnetic carrier having a thin layer about 300 to 1000 angstrom thick Ni-Al sputtered on it to form a fine grain structure, a 50 to 300 angstrom thick Cr-V dielectric layer on the seed layer, and a 100 to 300 angstrom CoCrPtTa alloy layer on the dielectric layer. This thin film type of magnetic recording disc offers high coercivity, signal to noise ratio, overwrite performance and off-track capacity.
TW086116863A1997-11-111997-11-11Process for preparing magnetic recording disc for use in hard disc
TW373169B
(en)