Mask blank substrate, substrate with multilayer reflection film, transmissive mask blank, reflective mask blank, transmissive mask, reflective mask, and semiconductor device fabrication method
Disclosed is a mask blank substrate for use in lithography, wherein a main surface of the substrate satisfies a relational equation of (BA70−BA30)/(BD70−BD30) 350 (%/nm), and has a maximum height (Rmax) 1.2 nm in a relation between a bearing area (%) and a bearing depth (nm) obtained by measuring, w...
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