Patent ID: 6365260
Filing Date: 2002-04-02
Classification: H01L,H05K,Y10S,Y10T

Abstract:
A heat dissipation arrangement, comprising:a metal heat sink having a trough-shaped recess which functions as a condenser; and a multilayer ceramic substrate mounted on the metal heat sink and including a plurality of layers, the multilayer ceramic substrate having thermal passages, for a heat-conducting medium, which are situated in a particular region of a top layer of the layers, the particular region being a region where a chip is to be mounted on the top layer, the multilayer ceramic substrate having a cavity functioning as an evaporation chamber, the cavity being situated in a particular layer of the layers disposed directly beneath the top layer at the particular region, further layers of the plurality of layers being situated between the cavity and the recess, wherein large steam channels and small condensate channels are situated in the further layers in a further region of the cavity and the recess, the small condensate channels functioning as capillaries which interconnect the cavity and the recess.