Patent ID: 6503686
Filing Date: 2003-01-07
Classification: C08F,G03F,Y10S

Abstract:
A photoresist comprising:(a) a polymer having: (i) a repeat unit derived from at least one ethylenically unsaturated compound containing a fluoroalcohol functional group having the structure: â€”C(Rf)(Rfâ€²)OH â€ƒwherein Rf and Rfâ€² are the same or different fluoroalkyl groups of from 1 to about 10 carbon atoms or taken together are (CF2)n wherein n is an integer ranging from 2 to about 10; and (ii) a repeat unit derived from at least one ethylenically unsaturated compound having the structure: (H)(R1)C&boxH;C(R2)(CN) â€ƒwherein R1 is a hydrogen atom or CN group, R2 is an alkyl group of 1 to about 8 carbon atoms, hydrogen atom, or CO2R3 group wherein R3 is an alkyl group of 1 to about 8 carbon atoms or hydrogen atom; and (b) at least one photoactive component.