Patent ID: 9237644
Filing Date: 2016-01-12
CPC Classification: B23K,H01L,H05K

Claim Text:
1. A method for producing an electronic assembly, comprising: attaching an electronic device to a first surface of an electronic board including a set of vias passing through the electronic board between the first surface and a second surface opposite the first surface, attaching a heat sink precursor to the second surface of the electronic board, the heat sink precursor having a cavity facing the set of vias, and providing a wave of solder penetrating through at least one opening of the heat sink precursor into the cavity and penetrating from the cavity into the set of vias, wherein the solder penetrating in the corresponding vias joins the electronic device to the set of vias and the solder penetrating in the cavity joins the heat sink precursor to the vias to form a corresponding heat sink.