Corrosion of copper in BTA solutions

Ashraf T. Al-Hinai, Kwadwo Osseo-Asare

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Abstract

The effect of benzotriazole (BTA) on the open-circuit potential of copper in buffered acid solutions was studied in the absence of the passive Cu(I)BTA film. The film was removed from the surface by in situ continuous scratching of the electrode. At a film-free surface BTA acted mainly as a cathodic inhibitor in contrast to its well-established role as an anodic inhibitor at the film-covered copper surface. The implications for chemical mechanical polishing of copper in BTA-containing slurries are discussed.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume6
Issue number5
DOIs
Publication statusPublished - May 2003

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ASJC Scopus subject areas

  • Electrochemistry
  • Materials Science(all)

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