Patent ID: 7284686

Claim:
A bump-equipped electronic component mounting method for mounting a bump-equipped electronic component with a plurality of metallic bumps on a substrate with a plurality of electrodes, comprising the steps of: aligning the plurality of metallic bumps with the plurality of electrodes with thermosetting resin intervening between the electronic component and substrate; pressing the electronic component onto the substrate while exerting ultrasonic oscillation, heat and applied pressure on said bump-equipped electronic component, and bringing all of the plurality of metallic bumps into contact with the electrodes so that they are electrically connected to each other, and also when some of the plurality of metallic bumps are metallic-bonded to the plurality of electrodes, substantially stopping ultrasonic oscillation such that the ultrasonic oscillation is stopped in a state where only some of all the metallic bumps in contact with the electrodes have been metallic-bonded to the electrodes and whereas the other remaining metallic bumps are only in contact with but not metallic bonded to the electrodes.