TECHNOLOGY FOCUS - METALLURGY - The binder is solder selected from tin, nickel, tin/lead alloy, tin/lead/silver alloy, tin/copper alloy, tin/silver alloy and/or tin/bismuth alloy. The electrically conductive wires are metal wires coated with tin, nickel, tin/lead alloy, tin/lead/silver alloy, tin/copper alloy, tin/silver alloy and/or tin/bismuth alloy. The electrically conductive wires are comprised of metal selected from copper, nickel, tin, silver and/or aluminum.    TECHNOLOGY FOCUS - POLYMERS - The binder is conductive adhesive which is thermoplastic polymer filled with conductive metal particles suspended in epoxy, acrylic, vinyl butryal, silicone and/or polyurethane. The polymeric wire mounting layer and polymeric interlayer dielectric layer are comprised of polymer encapsulant material selected from poly(vinyl butyral), ionomers, ethylene vinyl acetate, poly(vinyl acetal), polyurethane, poly(vinyl chloride), polyolefins, polyolefin block elastomers, ethylene acrylate ester copolymers, ethylene copolymers, silicone elastomers and/or chlorosulfonated polyethylene. The polymeric back-sheet comprises polyester layer comprised of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polyethylene phthalate, polytrimethylene phthalate, polybutylene phthalate, and polyhexamethylene phthalate and/or copolymer or blend polymers; or comprises fluoropolymer layer comprised of polymer from polyvinylfluoride, polyvinylidene fluoride, polytetrafluoroethylene and/or ethylene-tetrafluoroethylene. The polymeric wire mounting and interlayer dielectric layer are made of an ethylene copolymer comprised of ethylene and at least one monomer selected from 1-4C alkyl (meth)acrylates, (meth)acrylic acid, glycidyl methacrylate, maleic anhydride and copolymerized units of ethylene and co-monomer selected from 4-8C unsaturated anhydrides, monoesters of 4-8C unsaturated acids having at least two carboxylic acid groups, diesters of 4-8C unsaturated acids having at least two carboxylic acid groups and mixtures of such copolymers, where the ethylene content in the ethylene copolymer accounts for 60-90 wt.%.