Reflection layer or semi-transparent reflection layer for use in optical information recording media, optical information recording media and sputtering target for use in the optical information recording media
AssigneeKabushiki Kaisha Kobe Seiko Sho
InventorsJunichi Nakai, Takashi Onishi, Hideo Fujii, Katsutoshi Takagi
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Abstract
A novel reflective layer or semi-transparent reflective layer for use in optical information recording media with suppressed growth of Ag crystal grains and having a high reflectivity and excellent structural stability comprising an Ag based alloy containing from 0.1 to 3.0% of Nd in total of at least one element selected from the group consisting of Nd, Sn and Ge; and/or containing 0.1% or more of at least one rare earth element.
Claims17
A reflective layer or semi-transparent reflective layer for use in optical information recording media and comprising an Ag-based alloy containing from 0.1 to 3.0 atomic % of Nd.
A sputtering target an Ag-based alloy containing from 0.1 to 3.0 atomic % of Nd.
Dependencies are inferred from the claim text.