| abstract |
An improved electrolyte and method for tin and tin alloys without impairing the adhesion between the metal paste and the ceramic material. One or more sources of tin or a tin alloy, at least one surfactant that is an ethoxylated alcohol, one or more aromatic diols, and the following general formula: HOOCBCOOH (1) B A composition comprising one or more compounds, salts or esters, wherein is a chemical bond or — (CH 2 ) n — , where n is an integer from 1 to 4. The ethoxylated alcohol has a chain length from C 8 to C 22 and the compound (1) is malonic acid, glutaric acid or a salt thereof. [Selection figure] None |