Patent ID: 8575032

Claim:
A method of forming a pattern on a substrate, comprising: forming first features elevationally over an underlying substrate, the first features comprising longitudinally elongated first lines having first sidewall spacers received longitudinally along opposite sides thereof, first fill material being received laterally between the first sidewall spacers of laterally adjacent first features; forming second features elevationally over and crossing the first features, the second features comprising longitudinally elongated second lines having second sidewall spacers received longitudinally along opposite sides thereof, second fill material being received laterally between the second sidewall spacers of laterally adjacent second features; removing the second sidewall spacers from between the second lines and the second fill material; and removing, to the underlying substrate, portions of the first sidewall spacers from between the first lines and the first fill material that are not covered by the second lines and the second fill material.