Patent ID: 6461800
Filing Date: 2002-10-08
Classification: G03F

Abstract:
A method of patterning a resist, comprising the steps of:(a) forming a resist on an underlying layer; (b) selectively exposing said resist to form an exposed portion and an unexposed portion; and (c) after said step (b), performing development processing of said resist using a developing solution, wherein one of said exposed portion and said unexposed portion defines a first region and another of said exposed portion and said unexposed portion defines a second region in which a velocity of dissolution with respect to said developing solution of a second region resist in said second region is lower than a velocity of dissolution of a first region resist in said first region, said step (c) including the steps of: (c-1) removing said first region resist at a first velocity; and (c-2) after said step (c-1), continuing said development processing to remove a part of said second region resist at a second velocity lower than said first velocity, wherein a separation space of at least a size of a third region exists between a plurality of third regions sectioned by said first region, said plurality of third regions comprising original areas of said second region prior to said step (c-2).