TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The paste composition further comprises a silver particle which is present at 0.1-10 mass% when the total content of the phosphorus-containing copper alloy particle, the tin-containing particle, the nickel-containing particle and silver particles is 100 mass%. Preferred Components: The phosphorus content of the phosphorus-containing copper alloy particle is 6-8 mass%. The tin-containing particle is at least one of a tin particle or a tin alloy particle having a tin content of greater than or equal to 1 mass%. The nickel-containing particle is at least one of a nickel particle and a nickel alloy particle having a tin content of greater than or equal to 1 mass%. The glass particle has a glass softening point of less than or equal to 650 degrees C and a crystallization initiation temperature of more than 650 degrees C. The content of the: tin-containing particle is 5-70 mass%; and nickel-containing particle is 10-60 mass%, when the total content of the phosphorus-containing copper alloy particle, the tin-containing particle, and the nickel-containing particle is 100 mass%. The total content of the phosphorus-containing copper alloy particle, the tin-containing particle, the nickel-containing particle and silver particle is 70-94 mass%, the content of the glass particle is 0.1-10 mass%, and the total content of the solvent and the resin is 3-29.9 mass%. The electrode comprises a copper-tin-nickel alloy phase and a tin-phosphorus-oxygen glass phase, where the tin-phosphorus-oxygen glass phase is disposed between the copper-tin-nickel alloy phase and silicon substrate. EXAMPLE - Phosphorus-containing copper alloy containing 7 mass% of phosphorus was prepared according to a conventional method, dissolved and pulverized by a water atomization process, followed by dying and classification. A glass (composed of 3 parts silicon dioxide, 60 parts lead oxide, 18 parts boron oxide, 5 parts bismuth oxide, 5 parts aluminum oxide, and 9 parts zinc oxide) was prepared. Then 33.3 parts of obtained phosphorus-containing copper alloy particle, 22.8 parts tin particle, 22.8 parts glass, 22.8 parts nickel particle, 11.7 parts diethylene glycol monobutyl ether and 2.2 parts ethyl polyacrylate were blended and mixed using an automatic mortar kneading machine to obtain the paste composition.