Patent ID: 7208049

Claim:
A method for treating a post-CMP processed substrate, the method comprising: providing a post-CMP processed substrate wherein at least a portion of the substrate comprises a low dielectric constant film; and contacting the substrate with a process solution comprising about 10 ppm to about 500,000 ppm of at least one surfactant having the formula (III), (IVa), (IVb), (V), (VI), (VII): wherein R 1 and R 4 are each independently a straight or a branched alkyl group having from 3 to 10 carbon atoms; R 2 and R 3 are each independently a hydrogen atom or an alkyl group having from 1 to 5 carbon atoms; R 5 is a straight or a branched alkyl group having from 1 to 10 carbon atoms; R 10 is independently H or a group represented by the formula R 11 is a straight, branched, or cyclic alkyl group having from 4 to 22 carbon atoms; W is a hydrogen atom or an alkynyl group; X and Y are each independently a hydrogen atom or a hydroxyl group; m, n, p, and q are each independently a number that ranges from 0 to 20; r and s are each independently 2 or 3; t is a number that ranges from 0 to 2; j is a number that ranges from 1 to 5; and x is a number that ranges from 1 to 6.