Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate
2011-08-23
2011-08-23
Rosasco, Stephen (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Radiation modifying product or process of making
Radiation mask
Reexamination Certificate
active
08003282
ABSTRACT:
Provided are a substrate with a conductive film for an EUV mask blank in which the generation of particles due to abrasion between an electrostatic chuck and the substrate is prevented; and a substrate with a multilayer reflective film and an EUV mask blank each employing such a substrate with a conductive film.A substrate with a conductive film to be used for producing a reflective mask blank for EUV lithography, the conductive film containing chromium (Cr) and nitrogen (N), the average concentration of N in the conductive film being at least 0.1 atomic % and less than 40 atomic %, the crystal state of at least a surface of the conductive film being amorphous, the sheet resistance of the conductive film being at most 27 Ω/□, and the surface roughness (rms) of the conductive film being at most 0.5 nm.
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Hayashi Kazuyuki
Kadowaki Kazuo
Sugiyama Takashi
Asahi Glass Company Limited
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Rosasco Stephen
LandOfFree
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