METHODS FOR REDUCING METAL OXIDE SURFACES TO MODIFIED METAL SURFACES
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United States of America Patent
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Issued Date -
Jul 17, 2014
app pub date -
Jan 14, 2013
filing date -
Jan 14, 2013
priority date (Note) -
Abandoned
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Abstract
Method and apparatus for reducing metal oxide surfaces to modified metal surfaces are disclosed. Metal oxide surfaces are reduced to form a film integrated with a metal seed layer by contacting a solution with a reducing agent with the metal oxide surfaces. The solution with the reducing agent can contact the metal oxide surfaces under conditions that form an integrated film with the metal seed layer, and that reduces reoxidation from exposure the ambient environment. In some embodiments, an additive can be included with the reducing agent to form a surface protecting layer on the metal seed layer. In some embodiments, the metal is copper used in damascene copper structures.
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