Patent ID: 8300420

Claim:
A circuit substrate assembly, comprising: an electrically conductive layer comprising a plurality of signal-transmitting electrical traces configured for transmitting electrical signals and at least one electrical contact; an insulating layer defining a through hole therein; an electronic component accommodated in the through hole of the insulating layer, the electronic component comprising at least one electrical terminal; and a composite layer positioned between the electrically conductive layer and the insulating layer, the electrically conductive layer being located on one side of the composite layer, the composite layer having a first surface contacting the electrically conductive layer and an opposite second surface contacting the insulating layer, the composite layer being in contact with each of the signal-transmitting electrical traces and the at least one electrical contact, the composite layer comprising a polymer matrix and at least one carbon nanotube bundle embedded in the polymer matrix, an end of the at least one carbon nanotube bundle being in contact with the at least one electrical contact of the electrically conductive layer, another end of the at least one carbon nanotube bundle being exposed in the through hole of the insulation layer and electrically in contact with the at least one electrical terminal of the electronic component.