Patent ID: 6558874
Filing Date: 2003-05-06
Classification: G03F,H05K

Abstract:
A photosensitive conductor composition which is coated on a support film comprising1) finely divided inorganic solids comprising (a) finely divided particles of silver solids; (b) finely divided particles of inorganic binder having a glass transition temperature (Tg) of 325-700Â° C., the inorganic solids being dispersed in 2) an organic medium comprising a solution of (c) an organic polymeric binder which is a copolymer, interpolymer or mixture thereof selected from (1) nonacidic comonomers comprising butylmethacrylate or mixtures of butylmethacrylate and C1-10 alkyl acrylates, C1-10 alkyl methacrylates, styrene, substituted styrenes, or combinations thereof and (2) acidic comonomers comprising ethylenically unsaturated carboxylic acids containing moiety that are at least 15 wt. % of the total polymer weight; and having a Tg of 50-150Â° C. and weight average molecular weight in the range of greater than 55,000, but less than or equal to 300,000; (d) a photoinitiation system; (e) a photohardenable monomer; and with the proviso that the composition is fireable in an oxidizing or substantially nonoxidizing atmosphere at temperature of no higher than 700Â° C.