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## Preparation of flux 

[0051] Respective components were kneaded at compositions and formulations shown in Tables 2 to 5, and thereby each liquid flux was prepared. Examples 1 to 18 are shown in Tables 2 to 4. Comparative Examples 1 to 4 are shown in Table 5. Incidentally, in Tables 2 to 5, the unit of numerical values representing compositions is % by weight unless otherwise specified. The unit of the insulation resistance is Ω , and the unit of the amount of current at during a water- drop test is m A. 

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