Donald C. Mammato - Lebanon NJ
Sangya Jain - Bridgewater NJ
Dana Durham - East Greenwich RI
Mark A. Spak - Edison NJ
Douglas A. Usifer - Belle Mead NJ
Michael McFarland - Washington NJ
Hoechst Celanese Corporation - Somerville NJ
A method for producing a negative image by coating a substrate with a photosensitive layer containing a blocked hydrophobic polymer capable of deblocking in the presence of an acid, and an oxime sulfonate ester or o-quinone-4-sulfonyl-containing diazide, then imagewise exposing, treating with a gaseous base, removing excess base, overall flood exposing, baking and developing with an aqueous alkaline solution.