| 摘要 |
<p>A flux composition includes an alditol (A) and a polymer (B) which has a repeating structural unit represented by Formula (1): (wherein R1 is a hydrogen atom or a methyl group, and Z is a hydroxyl group, an oxo group, a carboxyl group, a formyl group, an amino group, a nitro group, a mercapto group, a sulfo group, an oxazoline group, an imide group, a group having an amide structure, or a group having any of these groups). The flux composition allows substrates with bumps such as pillar bumps to be electrically connected to each other by reflowing of such bumps without causing any exposure of the bumps from the flux during reflowing, thus resulting in a satisfactory electrically connected structure.</p> |
