Patent ID: 9557646
Date: 2017-01-31
CPC Classifications: C08F,C08K,G03F,H01L

Claim:
1. A photoresist composition comprising a photoactive component and a resin, the resin comprises a structure of the following formula: wherein each Z is the same or different bridge unit; X comprises one or more alkyl, oxygen or sulfur atoms; each R AL is a moiety that comprises a photoacid-labile group; Y is a moiety that is distinct from the spaced phenolic group or moiety that comprises AL, and Y is selected from the group consisting of phenyl; phenyl substituted with halogen, cyano, alkyl or alkoxy; an ester that does not undergo a photoacid-indueed cleavage reaction during exposing and developing of the photoresist layer; an alicyclic group; and a lactone; and a, b and c are mole percents of the respective polymer units based on total repeat units in the polymer and a, b and c are each greater than zero.