Patent ID: 9730310
Date: 2017-08-08
CPC Classifications: B32B,C04B,H05K,Y10T

Claim:
1. A metal-ceramic substrate comprising: at least one ceramic layer, having at least a first metallization on a first surface side of the at least one ceramic layer, having at least a first metallization on a first surface side of the at least one ceramic layer and a second metallization provided on a second surface side of the at least one ceramic layer lying opposite the first surface side, wherein the first metallization is a foil or layer of copper or a copper alloy, and wherein the first metallization is bonded with the first surface side of the at least one ceramic layer by a direct copper bonding process, and the second metallization is a layer of aluminum or an aluminum alloy, wherein the second metallization has a layer thickness between 0.05 mm and 1.0 mm, and wherein a plurality of recesses of differing depth are introduced into a second surface side of the second metallization and the plurality of recesses of differing depth are provided with cooling elements of differing shape or height protruding outwards from the second surface side of the second metallization, and wherein the plurality of recesses of differing depth are constituted in the form of holes extending to the second surface side of the at least one ceramic layer or are introduced into the second surface side of the at least one ceramic layer directly beside one another or overlapping at least in sections of the second surface side of the at least one ceramic layer.