| 摘要 |
A paste for filling a throughhole, comprises: an epoxy resin; a curing agent; and a metal filler, wherein the metal filler is a powder comprising a base metal, and the curing agent is an imidazole compound represented by the following formula (1): wherein R1 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a hydroxyalkyl group having 1 to 10 carbon atoms or an alkyloxy group having 1 to 10 carbon atoms.
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