Patent ID: 8062429

Claim:
A method of removing residue from a substrate during integrated circuit fabrication comprising: providing a substrate comprising metal and/or metal alloy portions and/or layers and a surface having organic, organometallic, and/or metal oxide etching residue thereon, and contacting the substrate with a composition comprising: (i) at least one amidoxime compound selected from the group consisting of 1,2,3,4,5,6-hexakis-O-[3-(hydroxyamino)-3-iminopropyl hexitol; 3,3′,3″,3′″-(ethane-1,2-diylbis(azanetriyl))tetrakis(N′-hydroxypropanimidamide); 3,3′-(ethane-1,2-diylbis(oxy))bis(N′-hydroxypropanimidamide); 3-(diethylamino)-N′-hydroxypropanimidamide: 3,3′-(piperazine-1,4-diyl)bis(N′-hydroxypropanimidamide); 3-(2-ethoxyethoxy)-N′-hydroxypropanimidamide; 3-(2-(2-(dimethylamino)ethoxy)ethoxy)-N′-hydroxypropanimidamide; N′-hydroxy-3-(phenylamino)propanimidamide; 3,3′,3″-nitrilotris(N′-hydroxypropanimidamide); 3,3′-(2,2-bis((3-(hydroxyamino)-3-iminopropoxy)methyl)propane-1,3-diyl)bis(oxy)bis(N-hydroxypropanimidamide); 3,3′-(2,2′-(methylazanediyl)bis(ethane-2,1-diyl)bis(oxy))bis(N′-hydroxypropanimidamide); N,N-bis(3-amino-3-(hydroxyimino)propyl)acetamide; 3,3′-(2-(N′-hydroxycarbamimidoyl)phenylazanediyl)bis(N′-hydroxypropanimidamide); 3,3′-(2,2′-(3-amino-3-(hydroxyimino)propylazanediyl)bis(ethane-2,1-diyl))bis(oxy)bis(N′-hydroxypropanimidamide); N′,3-dihydroxypropanimidamide; NN′-hydroxyacetimidamide; N′-hydroxy-3-(methylamino)propanimidamide; 3,3′-azanediylbis(N′-hydroxypropanimidamide); 3-amino-3-(hydroxyimino)propanoic acid; 3-amino-3-(hydroxyimino)propanamide; N′1,N′10-dihydroxydecanebis(imidamide): N′-hydroxyisonicotinimidamide; 2-dihydroxyacetimidamide; 2-chloro-N′-hydroxyacetimidamide; 2-amino-N′-hydroxybenzimidamide; 2,2′-azanediylbis(N′-hydroxyacetimidamide); N′-hydroxy-1-oxo-1,3-dihydroisobenzofuran-5-carboximidamide; 3-aminoisoquinolin-1(4H)-one oxime; 3-(hydroxyamino)-3,4-dihydroisoquinolin-1-amine; N′-hydroxycinnamimidamide; 4-chloro-N′-hydroxybenzimidamide; and salts thereof; and (ii) water, for a time and at a temperature sufficient to remove the residue from the substrate.