Patent ID: 8367539

Claim:
A semiconductor device manufacturing method comprising the steps of: attaching two or more first solder particles on at least one electrode among a plurality of electrodes of an electronic component; attaching two or more second solder particles on at least one electrode among a plurality of electrodes of a circuit board; arranging the electrode of the electronic component and the electrode of the circuit board so as to oppose each other; performing at least one of abutting the first solder particles to the at least one electrode of the circuit board, abutting the second solder particles to the at least one electrode of the electronic component, and abutting the first solder particles to the second solder particles; and heating the first solder particles and the second solder particles, wherein in at least one set of electrodes arranged so as to oppose each other, the at least one electrode of the circuit board and the at least one electrode of the electronic component are connected electrically via two or more individually separated solder joint bodies made by melting the first solder particles and the second solder particles.