Patent ID: 6562445
Filing Date: 2003-05-13
Classification: C23C,Y10T

Abstract:
A diamond-like carbon multilayer film, comprising a low hardness diamond-like carbon layer containing a graphite cluster having a mean size of 2 nm or more, and a high hardness diamond-like carbon layer containing a graphite cluster having a mean size of 1 nm or less, the low hardness diamond-like carbon layer and the high hardness diamond-like carbon layer being amorphous structures each containing carbon as a main component, and being alternately laminated, wherein the layer thickness of the low hardness diamond-like carbon layer is from not less than 2 nm to not more than 30 nm, and the layer thickness of the high hardness diamond-like carbon layer is from not less than 0.4 nm to not more than 10 nm.