TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The lead component particles have a size of 1-200 nm. The lead component particles are at least one of lead, a lead alloy, or a lead oxide compound of formula ((Pb)pOqHr). The conductive powder is at least one of silver, a silver alloy, or a silver compound. The conductive powder is silver particles having a size of 0.01-30 mu m. The solid component comprises at least one lead component compound comprising a lead alkoxide compound of formula ((Pb)a(OR)b) (2a), a lead polycondensation polymer of formula ((Pb)xOy(OR)z), and a complex of lead with beta-diketone compound of formula (R-C(=O)-CH2-C(=O)-R1a) (A). The solid component further comprises 0.1-3 wt.% of at least one bismuth component comprising bismuth or a bismuth containing compound. The bismuth component is at least one of bismuth, a bismuth alloy, or a bismuth oxide compound of formula ((Bi)pOqHr), where the bismuth component is particles having a size of 1-1000 (preferably 1-200) nm. The bismuth component is at least one of a bismuth alkoxide compound of formula ((Bi)a(OR)b), a bismuth polycondensation polymer of formula ((Bi)xOy(OR)z), and a complex of bismuth with (A). The solid component comprises: 40-99 weight parts of the conductive powder; 0.1-57 weight parts of the glass frit; and 0.1-3 weight parts of the lead or lead compounds.p, q, a, b, x, y, z = integers or prime numbers greater than 0;r = 0, integer or prime number greater than 0; andR, R1a = H or hydrocarbon. EXAMPLE - A mixture was prepared by adding a lead-free silicon-boron-oxygen based glass frit with an average particle size of 0.7-3 mu m to the silver powder (3 wt.%) with an average particle size of 200 nm. After dissolving ethyl cellulose functioning as a binder to a concentration of 30 wt.% using terpineol, the dissolved solution was added to the prepared mixture to be uniformly distributed in it. After additionally adding the lead hydroxide dispersion solution (0.5 wt.%) with an average dispersed particle size of 50 nm and then preliminarily mixing the lead hydroxide dispersion solution with the mixture, the paste was formed by repeatedly dispersing the mixture.