Patent ID: 9730309
Date: 2017-08-08
CPC Classifications: F21V,F21Y,H01L,H05K

Claim:
1. A ceramic printed circuit board comprising: an upper side; a lower side; a metallic cooling body; sintered metallization regions arranged on and sintered to the upper side; and additional sintered metallization regions arranged on and sintered to the lower side; wherein the lower side is configured as a cooling body, wherein the metallic cooling body is soldered to the additional sintered metallization regions arranged on the lower side; a ceramic substrate that is pre-metallized on both sides by sintered metallization regions: wherein the metallization regions are metallized with gold, silver, a silver alloy, an active solder with a galvanic coating such as Ni+Au or with aluminum using a thick film technology, a thin film technology or a plasma spraying process; subsequently soldering the cooling body with its connection side onto the lower side of the printed circuit board; and wherein a high-melting brazing solder with a melting point between 450 and 660° C. is used as a solder.