Patent ID: 7591270
Filing Date: 2009-09-22
Classification: G03F,Y10S

Abstract:
1. A method for reducing the number of pattern collapse defects during the manufacture of semiconductor devices, the method comprising: providing a substrate comprising a photoresist coating; exposing the substrate to a radiation source to form a pattern on the photoresist coating; applying a developer solution to the substrate to form a patterned photoresist coating; optionally rinsing the substrate with deionized water; and contacting the substrate with a process solution consisting of at least one solvent and 10 ppm to about 10,000 ppm of at least one surfactant having the formula (IVa): wherein R 1 and R 4 are each independently a straight or a branched alkyl group having from 3 to 10 carbon atoms; and r and s each independently 2 or 3.