An optical recording medium and a method of fabricating the same

摘要

An optical recording medium of phase change improves the erase ratio and the repeat writing characteristic by coexistence of an amorphous phase and a crystalline phase at the stage of initiation so as to reduce the size of crystalline grain in a recording layer and a method of fabricating the same. The optical recording medium of phase change comprises: a substrate; a first dielectric layer deposited on said substrate; a recording layer deposited on said first dielectric layer; a second dielectric layer deposited on said recording layer; a reflection layer and a protective film formed sequentially on said second dieletric layer; said recording layer being consisted of (GeSbTe)x(InySb1-y)1-x; and a crystalline phase of said recording layer being a structure co-existing with a crystalline material of GeSbTe and an amorphous material of InSb.