US Patent 7754535 Method of manufacturing chip integrated substrate

There are provided the steps of connecting a chip component 13 to a first substrate 10 through wire bonding, providing, on a second substrate 20, an electrode 21 having a solder coat 23 with a copper core 22, polishing a portion of the electrode 21 which is to be bonded to the connecting pad 12, thereby exposing the copper core 22 from the solder coat 23, bonding the exposed portion of the copper core 22 to the bump connecting pad 12 by using a flux non-containing conductive paste 30, thereby bonding the substrates 10 and 20 to each other, and filling a sealing resin 40 in a clearance portion between the substrates 10 and 20.