Patent ID: 6899995

Claim:
A photoresist composition comprising: (a) a protected material comprising a protecting group which is: A. a cyclic ether group having the structure I or II: wherein R f and R f ′ are the same or different fluoroalkyl groups of from one to about ten carbon atoms or taken together are (CF 2 ) a wherein a is an integer ranging from 2 to about 10, R independently represents a hydrogen atom or a straight chain or branched chain alkyl group of 1 to about 10 carbon atoms, and p is an integer of from 0 to about 8; wherein the protected material is substantially free of an acid group with a pKa of <11; and B. a cyclic ester having structure III: wherein R 1 and R 2 independently represent a substituted or an unsubstituted straight chain or branched chain alkyl group, aromatic group, aralkyl, or alkaryl group, n is an integer of 1 to about 4; and (b) a photoactive component.