Patent ID: 7534308

Claim:
A process for cleaning substrates, the process comprising: (a) placing the substrates in a pressurizable vessel under non-pressurized conditions; (b) adding organic solvent to the pressurizable vessel; (c) agitating the substrates in the vessel under non-pressurized conditions; (d) separating a portion of the organic solvent from the substrates; (e) pressurizing the pressurizable vessel and adding pressurized fluid solvent thereto; (f) removing a first portion of the pressurized fluid solvent from the pressurized vessel; and (g) depressurizing the vessel to vaporize a remaining portion of the pressurized fluid solvent; wherein the organic solvent is of formula C n H j X k O b wherein: 2≦n≦20; 0≦j, k≦(2n+2); 2n−4≦(j+k)≦2n+2; 1≦b≦6; and each X is independently F, Cl, Br or I.