摘要:
A Phase-change optical recording media includes a recording film that causes reversible phase-change between a crystalline phase and an amorphous phase on irradiation with light, and an interface film formed in contact with at least one surface of the recording film and containing Hf (hafnium), O (oxygen) and N (nitrogen).
摘要:
In a single-sided, recordable/rewritable phase change optical recording medium having one or more layers, an interface layer adjacent to a phase change optical recording film contains at least Zr (zirconium), O (oxygen), and N (nitrogen), and further contains one or both of Y (yttrium) and Nb (niobium).
摘要:
An optical recording media has a disc substrate and two or more recording layers arranged apart from each other with a dielectric layer interposed therebetween to cause optical change simultaneously by irradiation with light, in which a first recording layer positioned near the disc substrate has a higher optical change temperature and a higher extinction coefficient compared with those of a second recording layer and a later recording layer.
摘要:
A nonvolatile semiconductor memory using carbon related films as variable resistance films includes bottom electrodes formed above a substrate, buffer layers formed on the bottom electrodes and each formed of a film containing nitrogen and containing carbon as a main component, variable resistance films formed on the buffer layers and each formed of a film containing carbon as a main component and the electrical resistivity thereof being changed according to application of voltage or supply of current, and top electrodes formed on the variable resistance films.
摘要:
An optical disk including first information layer having first guide grooves consisting of first protrusive flat portion having first width and first recessed flat portion having a second width having first height difference from the first protrusive flat portion, the first information layer being formed on the transparent substrate layer, second information layer having second guide grooves consisting of second protrusive flat portion having third width formed on second recessed flat portion having fourth width having second height difference, the second information layer, wherein cycle P (μm) of the first and second guide grooves has value ranging from 0.35 μm to 0.8 μm and has relationship of Q1=2Z1/(P−X1−Y1), Q2=2Z2/(P−X2−Y2), 0.9
摘要:
An optical recording media includes a recording film, and a stacked film of at least two dielectric films A and B formed on at least one surface of the recording film. Each of the dielectric films A and B contains as a main component a compound selected from the group consisting of an inorganic oxide, an inorganic nitride, an inorganic sulfide and an inorganic fluoride or a mixture thereof, and the refractive indexes nA and nB of the dielectric films A and B satisfy the following relationship: (nA−nB)/(nA+nB)≦0.05.