US Patent 7821136 Conductive layers and fabrication methods thereof

Methods for forming conductive layers. A layer of metal composite is applied on a substrate, comprising a plurality of metal flakes, a plurality of nanometer metal spheres, and a plurality of mixed metal precursors. The plurality of mixed metal precursors comprises a mixture of inorganic salts and organic acidic salts. The layer of metal composite is cured to induce an exothermic reaction, thereby forming a conductive layer on the substrate at a relatively low temperature (<200° C.).