Patent ID: 7278564
Filing Date: 2007-10-09
Classification: H01L,H05K

Abstract:
1. A method of mounting an electronic component on a substrate, the substrate defining holes that extend through the substrate from a conductor formed on one surface of the substrate to another surface of the substrate, the method comprising: filling the holes with a low melting point metal so as to be electrically connected to the conductor; alloying and bonding bumps and the low melting point metal by heating the low melting point metal while pressing the bumps formed on the electronic component from the other surface of the substrate with respect to the holes filled with the low melting point metal; and heating and plasticizing the substrate indirectly by directly heating the electronic component at a temperature of 250 to 300° C. while pressing an active surface of the electronic component having the bumps formed thereon to the surface of the electronic component being sealed by the other surface of the substrate.