Abstract: A stamper-forming electrode material contains Cu as its main ingredient and at least one other element, preferably Ag and/or Ti. It is preferred that the Ag content be 10.0 wt % or less and that the Ti content be 5.0 wt % or less. A stamper-forming thin film is made of this stamper-forming electrode material, whereby its corrosion resistance is improved to suppress damage to itself, and a high-quality stamper can hence be formed.

Abstract: The optical recording medium has a substrate (1) with a recording layer (2), a reflecting layer (3) and a protecting layer (4) laminated successively on the substrate (1). The reflecting layer (3) is a thin film of an alloy containing 99.7 to 73.0% by weight of Cu as a major component, as well as, 0.2 to 18.0% by weight of Ag and 0.1 to 9.0% by weight of Ti. The reflecting layer has a film thickness of 50 nm to 150 nm. The optical recording medium provided with the reflecting layer (3) shows improved corrosion resistance and also retains high reflectance. The present invention also provides a target for forming the reflecting layer (3).

Abstract: A stamper-forming electrode material contains Ag as its main ingredient and at least one other element, preferably Au and/or Cu. It is preferred that the Au and Cu contents each be 5.0 wt % or less. A stamper-forming thin film is made of this stamper-forming electrode material, whereby its corrosion resistance is improved to suppress damage to itself, and a high-quality stamper can hence be formed.

Abstract: A stamper-forming electrode material contains Cu as its main ingredient and at least one other element, preferably Ag and/or Ti. It is preferred that the Ag content be 10.0 wt % or less and that the Ti content be 5.0 wt % or less. A stamper-forming thin film is made of this stamper-forming electrode material, whereby its corrosion resistance is improved to suppress damage to itself, and a high-quality stamper can hence be formed.