Patent ID: 6324131
Filing Date: 2001-11-27
Classification: G11B

Abstract:
A low glide magneto-optical (LGMO) recording/data storage and retrieval medium, comprising:(a) a substrate having at least one polished major surface;said medium further comprising at least one stack of layers, including, in sequence from said at least one polished major surface of said substrate:(b) a heat sinking and reflective layer;(c) a first dielectric layer comprising a material which is substantially transparent to the wavelength(s) of at least one laser beam used for writing and reading-out information stored in said medium;(d) a magneto-optical (MO) read-write layer;(e) a second dielectric layer comprising a material which is substantially transparent to the wavelength(s) of the at least one laser beam used for writing and reading-out information stored in said medium;(f) a thin, amorphous, abrasion-resistant, diamond-like, carbon-based protective flash layer overcoat (FLO) over said second transparent dielectric layer, said FLO layer being substantially transparent to the wavelength(s) of the at least one laser beam used for writing and reading-out information stored in said medium; and(g) a thin lubricant topcoat layer on said FLO layer;wherein said LGMO medium is capable of functioning with a flying head at a fly height of less than about 1 microinch.