Patent ID: 7297670

Claim:
A post CMP cleaning composition for cleaning a semiconductor work-piece after at least one CMP manufacturing step, the composition comprising: (a) a cleaning agent, wherein said cleaning agent is selected from the group consisting of ammonium oxalate, aspartic acid, benzoic acid, citric acid, cysteine, qlycine, gluconic acid, glutamic acid, histidine, maleic acid, oxalic acid, propionic acid, salicylic acid, tartaric acid, and mixtures thereof; (b) a corrosion-inhibiting compound, wherein said corrosion-inhibiting compound is selected from the group consisting of caffeic acid, glucose, imidazole, mercaptothiazoline, mercaptoethanol, mercaptobenzothiazole, mercaptomethylimidazole, tanic acid, thiosalicylic acid, triazole, and mixtures thereof; and (c) mercaptopropionic acid.