Composition for the removal of sidewall residues

The present invention relates to a composition for the removal of so-called sidewall residues from metal surfaces, in particular from aluminium or aluminium-containing surfaces, during the production of semiconductor elements. Composition for the removal of residual polymers from aluminium or copper...

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Bibliographic Details
Main Authors BOERNER, MARC, BARKO, ANDREA, MELLIES, RAIMUND, ARNOLD, LUCIA, RHEIN, RUDOLF
Format Patent
LanguageEnglish
Published 11.02.2006
Edition7
Subjects
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Summary:The present invention relates to a composition for the removal of so-called sidewall residues from metal surfaces, in particular from aluminium or aluminium-containing surfaces, during the production of semiconductor elements. Composition for the removal of residual polymers from aluminium or copper/aluminium alloys in a process step in the production of semiconductors, comprising H2SiF6 and/or HBF4 in a total amount of 10-500 mg/kg, 12-17% by weight of H2SO4, 2-4% by weight of H2O2, optionally in combination with additives, in aqueous solution.
Bibliography:Application Number: TW200392116289