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Dissolution of metals utilizing an aqueous H.sub.2 SO.sub.Y --H. sub.2 O. sub.2 -mercapto containing heterocyclic nitrogen etchant
Dissolution of metals utilizing an aqueous H.sub.2 SO.sub.Y --H. sub.2 O. sub.2 -mercapto containing heterocyclic nitrogen etchant
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机译:利用H.sub.2 SOY -H水溶液溶解金属sub.2 O. sub.2-含巯基的杂环氮蚀刻剂
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摘要
Improved metal dissolution rates are obtained when using a solution containing sulfuric acid, hydrogen peroxide and a catalytic amount of a heterocyclic nitrogen compound containing at least one free mercapto group substitution.
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