Patent ID: 7955901
Filing Date: 2011-06-07
Classification: H01L

Abstract:
1. A method comprising: providing a leadframe comprising an arrangement of metallic external contacts spaced apart from one another including a first load external contact, a second load external contact, and a gate external contact, wherein rear sides of the metallic external contacts provide surface mountable contacts; providing a semiconductor chip, a top side of the semiconductor chip comprising a first load contact area and a gate contact area and a rear side of the semiconductor chip comprising a second load contact area; fixing the semiconductor chip by the second load contact area on a top side of the second load external contact of the leadframe; applying an insulation layer to the top side of the semiconductor chip and to top sides of said the metallic external contacts, the insulation layer extending between the top side of the semiconductor chip and the top sides of the metallic external contacts and leaving free the first load contact area and the gate contact area of the semiconductor chip and partly leaving free the top sides of the first load external contact and the gate external contact of the leadframe; and applying a liquid having a suspension of electrically conductive nanoparticles dispersed therein to a top side of the insulation layer; removing the liquid so that only the electrically conductive particles remain and which thereby agglomerate to form a layer extending between the first load contact area and surfaces of the first load external contact and between the gate contact area and surfaces of the gate external contact.