Patent ID: 7799139

Claim:
A method comprising applying a cleaning mixture comprising at least one of ethylene glycol monopropyl ether, diethylene glycol monopropyl ether, 3-Methoxypropylamine, 2-(Diethylamino)ethanol, glycol monopropyl ethers, glycol monoethyl ethers and etheramines, an inorganic base comprising 0.5 to about 5 percent by weight, an organic base comprising 2 to 20 percent by weight, an inhibitor comprising at least one of Heptanethiol, 2-Mercaptobenzimidazole, Mercaptobenzothiazole, Benzothiazole, 3,6-dioxa-1,8-octanedithol, 3-Mercaptopropionic acid, Methyl 3-mercaptopropionate, Butyl 3-mercaptopropionate and comprising about 0.005 to about 1 percent by weight, and a surfactant comprising less than about 1 percent by weight to a Damascene structure of a microelectronic structure comprising a porous oxide dielectric, wherein the dielectric constant is below about 4; and removing at least one of a polymer residue, an organic sacrificial fill material and photo resist from the Damascene structure by the application of the cleaning mixture, wherein a removal rate of the porous oxide dielectric comprises about 0.7 angstroms per minute to about 10 angstroms per minute.