Invention Grant
US07825079B2 Cleaning composition comprising a chelant and quaternary ammonium hydroxide mixture 有权
包含螯合剂和季铵氢氧化物混合物的清洁组合物

Cleaning composition comprising a chelant and quaternary ammonium hydroxide mixture
Abstract:
The invention relates to compositions and methods for cleaning integrated circuit substrates. The compositions are in the form of an aqueous solution and include a quaternary ammonium hydroxide compound and a chelating compound. The chelating compound includes either boric acid or at least one N-substituted aminocarboxylate selected from the group consisting of N-bis(2-hydroxyethyl)glycine(bicine), N-tris(hydroxymethyl)methyl glycine (tricine) and mixtures thereof, and can optionally include glycine, Iminodiacetic acid (IDA), Nitrilo trizacetic acid (NTA), Ethylenediammine Tetraacetic acid (EDTA), or mixtures thereof.
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