Patent ID: 9122161
Filing Date: 2015-09-01
Classification: C23C,G03F

Abstract:
1. A method for forming a pattern in a polymeric layer, the method comprising: providing a polymeric layer comprising a reactive composition that comprises: patternwise exposing the polymeric layer to radiation having a λ optionally heating the polymeric layer simultaneously with or after patternwise exposing the polymeric layer but before contacting both the non-exposed regions and the exposed regions of the polymeric layer with a reducing agent at a temperature sufficient to generate carboxylic acid groups in the (a) reactive polymer in the exposed regions of the polymeric layer, contacting both the non-exposed regions and the exposed regions of the polymeric layer with a reducing agent, bleaching the polymeric layer to remove surface amounts of the reducing agent in both non-exposed and exposed regions of the polymeric layer, contacting the exposed regions of the polymeric layer with electroless seed metal ions to oxidize the reducing agent and to form corresponding electroless seed metal nuclei in the exposed regions of the polymeric layer, and electrolessly plating the corresponding electroless seed metal nuclei in the exposed regions of the polymeric layer with a metal that is the same as or different from the corresponding electroless seed metal nuclei.