Patent ID: 6428894
Filing Date: 2002-08-06
Classification: C23C,G03F,H01L,Y10T

Abstract:
A multilayer resist system structure comprising:at least one substrate, having on at least one major surface thereof, at least one finely optically tunable vapor deposited antireflective coating material (BARC), said BARC being a film overcoated with a layer of energy photoactive material; said substrate is selected from the group consisting of a semiconductor, a polymer, glass, a metal and any combinations thereof and a magnetic head, electronic chip circuit board and semiconductor device; said layer of photoactive material comprises a photoresist in dry sheet form and said photoactive material is selected from the group consisting of compositions which are sensitive in the UV wavelength range, compositions which are sensitive in the DUV wavelength range, compositions which are sensitive in the UV and DUV ranges, and combinations thereof; said BARC is selected from the group consisting of diamond-like carbon, fluorinated diamond-like carbon, fluorinated hydrogenated diamond-like carbon, nitrogenated diamond-like carbon, amorphous fluorinated hydrogenated carbon, amorphous fluorinated carbon, fluorinated tetrahedral carbon, amorphous nitrogenated carbon, amorphous nitrogenated hydrogenated carbon, nitrogenated hydrogenated carbon, nitrogenated tetrahedral carbon, and combinations thereof; said BARC film having optical constants wherein the index of refraction n has values range from about 2.1 to about 1.4 and extinction coefficient k has values in the range from about 0.1 to about 0.6; said antireflection coating disposed between said substrate and said photoactive material has said index of refraction and said extinction coefficient tuned to substantially match those of said photoactive material and said substrate at the interface with each.