Patent ID: 8937018
Filing Date: 2015-01-20
Classification: H01L

Abstract:
1. A method of forming a pattern on a substrate, comprising: forming spaced, upwardly-open, cylinder-like structures projecting longitudinally outward of a base; forming photoresist elevationally over and laterally inward of the cylinder-like structures; patterning the photoresist to form interstitial spaces into the photoresist laterally outward of the cylinder-like structures, the interstitial spaces being individually surrounded by at least three of the cylinder-like structures, the patterning leaving photoresist covering elevationally over all tops and covering laterally over all sidewalls of the cylinder-like structures; and using the patterned photoresist as an etch mask while etching interstitial openings into the base and while the photoresist is laterally inward of the cylinder-like structures and while the photoresist is covering elevationally over all the tops and covering laterally over all the sidewalls of the cylinder-like structures.