Patent ID: 8298867
Filing Date: 2012-10-30
Classification: H01L,H05K

Abstract:
1. A method for fabricating a circuit substrate arrangement comprising: providing a circuit substrate comprising a metal surface; providing an insulating substrate comprising an insulation carrier featuring a bottom side provided with a bottom metallization layer; providing an anchoring structure comprising a plurality of oblong pillars each featuring a first end facing away from the insulation carrier, at least a subset of the oblong pillars being distributed over the anchoring structure in its entirety, at least some of the pillars of the subset being bonded by one to four elongated bonding webs to one or more adjoining oblong pillars; positioning the anchoring structure between the insulation carrier and the metal surface; and subsequently soldering the metal surface to the bottom metallization layer and the anchoring structure by means of a solder packing all interstices between the metal surface and the bottom metallization layer with the solder.