Patent ID: 8906838

Claim:
A silicate free cleaning composition that is stable in strong alkaline conditions of pH >9 and in the presence of H 2 O 2 and capable of cleaning photoresist and residues from microelectronic substrates having copper metallization and a porous or non-porous low-κ or high-κ dielectric, said cleaning composition being stable when in the presence of hydrogen peroxide oxidizing agent, said composition consisting essentially of: from about 10 to about 90% by weight of a polar organic solvent having hydrogen bonding capability and minimally or non-reactive with an oxidizing agent, wherein the polar organic solvent is selected from the group consisting of dimethylpiperidone, sulfones, and sulfolanes; from about 0.1 to about 10% by weight of a member selected from the group consisting of a tetraalkylammonium hydroxide, choline hydroxide, sodium hydroxide, and potassium hydroxide; from about 10 to about 60% water; and from about 0.1 to about 5% by weight a chelating or metal complexing agent selected from the group consisting of trans-1,2-cyclohexanediamine tetraacetic acid, ethane-1-hydroxy-1,1-diphosphonate and ethylenediamine tetra(methylene phosphonic acid).