Phase change data storage device for multi-level recording

Details Phase change data storage device for multi-level recording Phase change data storage device for multi-level recording

2005-05-31

2005-05-31

Jones, Deborah (Department: 1775)

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

C428S064200, C428S064400

Reexamination Certificate

active

06899938

ABSTRACT:
An optical data storage device for multi-level recording having: a substrate, and a phase change memory medium supported by the substrate. The phase change memory medium preferably has an alloy with a eutectic crystallization base component and at least one element for enhanced sigma-to-dynamic range. The multi-level data storage device is preferably an optical disk with a single layer of memory material for providing multi-level recording with a sigma-to-dynamic range of less than 2%.The phase change recording alloy is preferably an In:Sb:Te material. Preferably, Sb:Te is present at a ratio at, or near, the eutectic point when combined with 30% or less In. A preferred phase change memory material includes an alloy defined by the formula: Inx(SbnTe100-n)100-xwhere x is 3-30, and n is 63-82.

REFERENCES:
patent: 4818666 (1989-04-01), Gravesteijn
patent: 4975355 (1990-12-01), Suzuki
patent: 5335219 (1994-08-01), Ovshinsky et al.
patent: 5709978 (1998-01-01), Hirotsune
patent: 6108295 (2000-08-01), Ohno
patent: 2001/0036596 (2001-11-01), Mizushima et al.
patent: 2002/0160305 (2002-10-01), Horie et al.
“Materials Characteristics for High Performance Multi-Level Recording with InSb Te Phase Change Materials”, Daly-Flynn et a.*
“InSbTe Phase Change Materials for High Performance Multi-Level Recording”, Daly-Flynn et al, Japan J. Appl. Phys. vol. 42 (Feb. 2003) pp. 795-799.

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