Abstract:
Provided is a multilayer recordable optical information recording medium wherein a protective layer comprising an inorganic material does not peel off when a second film is formed using a metal stamper. The multilayer optical information recording medium has a middle layer which consists of a first film in contact with the protective layer, and a second film in contact with a reflective layer. The first and second films are made of different materials, and the peel strength of the bond between the first film and the protective layer of the first optical information recording layer is higher than that of the bond between the first and second films.
Abstract:
The recordable optical storage medium comprises a substrate layer (11), a recording layer (12, 13), a cover layer (15), a reflecting layer (14) arranged between the recording layer and the cover layer, a first dielectric layer (16) arranged between the substrate layer and the recording layer, and a second dielectric layer (17) arranged between the recording layer and the reflecting layer. The recording layer (12, 13) comprises a first film (12) containing essentially copper being arranged on the first dielectric layer (16) and a second film (13) containing essentially silicon arranged between the first film (12) and the second dielectric layer (17). The thicknesses of the first film (12) and of the second film (13) are in particular each in a range of 2 - 20 nm, wherein the thickness of the first film (12) is larger than the thickness of the second film (13), and the thickness (d1) of the first dielectric layer (16) is larger than the thickness (d2) of the second dielectric layer (17).
Abstract:
The present invention provides an optical recording medium comprising a transparent first substrate and a first dielectric layer, a recording layer, a second dielectric layer and a reflective layer which are laminated on the first substrate in this order, wherein the recording layer comprises a thin layer comprising mainly an alloy represented by the composition formula: Ge x Sb y Te z (wherein x, y and z represent respectively an atomic %, and x, y and z satisfy respectively the following equations: 3.5 ≤ x ≤ 10, 70 ≤ y ≤ 80 and z = 100 - x - y) and the second dielectric layer comprises a thin film of a compound oxide comprising at least one of a mixture of Nb 2 O 5 and ZrO 2 , a mixture of Nb 2 O 5 and ZnO and a mixture of Nb 2 O 5 , ZrO 2 and ZnO.
Abstract translation:本发明提供了一种光记录介质,其包括透明第一基板和第一介电层,记录层,第二介电层和反射层,其按顺序层压在第一基板上,其中记录层包括薄层 主要由以下组成式表示的合金:GexSbyTez(其中x,y和z分别表示原子%,x,y和z分别满足以下等式:3.5 <= x <= 10,70 <= y < 80和z = 100-x-y),并且第二介电层包括复合氧化物的薄膜,其包含Nb 2 O 5和ZrO 2的混合物,Nb 2 O 5和ZnO的混合物以及Nb 2 O 5,ZrO 2和ZnO的混合物中的至少一种 。