In our pursuit to unravel the materials aspects of photoimageable thick film pastes, we herein furnish a preliminary account of preparation and allied characterization of aqueous developable photoimageable silver conductor paste as a function of weight percentage of glass frit binder. This photoimageable paste is comprised of submicron sized silver powder, micron sized lead borosilicate glass frit, epoxy acrylate resin with pendant -COOH group and 2,2'-dimethoxy-2-phenyl acetophenone. The weight percentage of lead borosilicate glass frit is varied from 0 to 10 maintaining the inorganic to organic ratio of 72:28 while formulating the paste. We have adopted physicochemical techniques such as TGA/DTA, SEM/EDAX and sheet resistance measurement to arrive at optimized weight percentage of glass yielding the desired line/space resolution, minimal line shrinkage, better adherence and expected sheet resistance. (c) 2005 Elsevier B.V. All rights reserved.