Question: You are using a shadow mask to define the pattern of an evaporated contact layer for your organic photovoltaic device fabricated on an 8 -

You are using a shadow mask to define the pattern of an evaporated contact layer for your organic photovoltaic device fabricated on an 8-inch diameter wafer. The shadow mask is 0.002 inches thick. The distance between your metal source and substrate is 1 m , and your wafer is centered above the metal source. What is the length scale of the shadowing effect from your mask?
a)50nm
b)500nm
c)5m
d)50m
You are using a shadow mask to define the pattern

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