Patent ID: 8118211
Filing Date: 2012-02-21
Classification: H01L

Abstract:
1. A method for low-temperature pressure sintering of at least one electronic unit, comprising the following steps: locating the electronic unit on a thermally dominant ceramic substrate, and thermally contacting and mechanically connecting the electronic unit and the substrate; shape-pressing the electronic unit using a mold enveloping compound at a process temperature of 175° C. to 200° C. whilst sparing a connecting surface of the substrate for a heat sink connection, the coefficient of expansion of the mold enveloping compound being matched to the substrate, providing a heat sink plate, applying a sintering connecting layer onto a spared region of the connecting surface and/or to a region of the heat sink plate provided for contacting, and bonding the heat sink plate to the substrate in the spared region of the connecting surface using silver low-temperature pressure sintering technology, using a lower press ram with a smaller radius/outside dimensions than the heat sink plate for applying pressure for warping the heat sink plate, so that after cooling the sinter connection, convex warping of the heat sink plate is produced.