Buffered nitrogenated carbon overcoat for data recording disks a

Details Buffered nitrogenated carbon overcoat for data recording disks a Buffered nitrogenated carbon overcoat for data recording disks a

1998-07-24

2000-10-24

Thibodeau, Paul

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428694TC, 428 655, 428 657, 428408, B32B 900, G11B 566, G11B 570

Patent

active

061364037

ABSTRACT:
A recording medium on a hard disk is provided that includes a magnetic data recording layer on the disk, a hydrogenated carbon buffer layer over the data recording layer, and a nitrogenated carbon overcoat layer over the hydrogenated carbon buffer layer. The composition ratios and thickness of the recording and nitrogenated carbon overcoat layers are suitably controlled to optimum ranges.

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