Abstract:
In the present invention, an etching stopper film (2), a light-blocking film (3) comprising a material containing one or more elements selected from among silicon and tantalum, and a hard mask film (4) are laminated in that order on a translucent substrate (1). The etching stopper film is made of a material containing chromium, oxygen and carbon, the chromium content is 50 atom % or more, the maximum peak in a N1s narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy is below the detection limit, and a Cr2p narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy has a maximum peak at a bond energy of 574 eV or less.
Abstract:
In the present invention, an etching stopper film (2), a light-blocking film (3) comprising a material containing one or more elements selected from among silicon and tantalum, and a hard mask film (4) are laminated in that order on a translucent substrate (1). The etching stopper film is made of a material containing chromium, oxygen and carbon, the chromium content is 50 atom% or more, the maximum peak in a Nis narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy is below the detection limit, and a Cr2p narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy has a maximum peak at a bond energy of 574 eV or less.
Abstract:
In a mask blank, a phase shift film in contact with a transparent substrate includes a stack of two or more layers including a lowermost layer. The, layers other than the lowermost layer are made of a material consisting of silicon and one or more elements selected from a metalloid element and anon-metallic element. The lowermost layer is made of a material consisting of silicon and nitrogen and, optionally, one or more elements selected from a metalloid element and anon-metallic element. A ratio of a number of Si3N4 bonds present in the lowermost layer to a total number of Si3N4 bonds, SiaNb bonds (provided that b/[a+b]
Abstract:
In a mask blank, a phase shift film in contact with a transparent substrate includes a stack of two or more layers including a lowermost layer. The, layers other than the lowermost layer are made of a material consisting of silicon and one or more elements selected from a metalloid element and anon-metallic element. The lowermost layer is made of a material consisting of silicon and nitrogen and, optionally, one or more elements selected from a metalloid element and anon-metallic element. A ratio of a number of Si3N4 bonds present in the lowermost layer to a total number of Si3N4 bonds, SiaNb bonds (provided that b/[a+b]
Abstract:
PROBLEM TO BE SOLVED: To improve resistance of a semi-translucent film, composed of material containing tantalum, to an etchant for chromium, for reducing damage to the semi-translucent film.SOLUTION: In a mask blank, a semi-translucent film and a light shielding film are formed in order on a translucent substrate. The semi-translucent film is composed of material containing tantalum. On a surface layer of the semi-translucent film on the opposite side of the translucent substrate, a high oxidized layer with an oxygen content of 60 at% or higher is formed, and the oxygen content in the semi-translucent film excluding the high oxidized layer is less than 60 at%.
Abstract:
PROBLEM TO BE SOLVED: To provide a binary mask blank, a transfer mask and a transfer mask set, suitable for application to double-exposure technology. SOLUTION: A mask blank is provided to be used for manufacturing a binary transfer mask to which ArF exposure light is applied. The mask blank includes, on a light-transmitting substrate 1, successively from the substrate side: a light-shielding film 10 for forming a transfer pattern; and an auxiliary light-shielding film 20 for forming a light-shielding zone in a layered structure with the light-shielding film, wherein the light-shielding film 10 has an optical density of 2.5 or more and 3.1 or less and the auxiliary light-shielding film 20 has an optical density of 0.5 or more. COPYRIGHT: (C)2011,JPO&INPIT