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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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
11.02.2006
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: TW200392116289 |