Patent ID: 8069561
Filing Date: 2011-12-06
Classification: B32B,C04B,H01L,H05K,Y10T

Abstract:
1. A method for manufacturing a metal-ceramic substrate with of at least one metallization on at least one surface of a lamellar ceramic material, the method comprising the steps of: (a) applying an intermediate layer made of an oxidic ceramic, each to one of the two surface sides of a base substrate made of an aluminum-nitride or silicon-nitride for forming the lamellar ceramic material, (b) applying a copper foil forming the at least one metallization to the intermediate layer by active soldering, (c) subsequently patterning or structuring the copper foil by etching to form metal areas in a form of strip conductors, or contact surfaces, and using an etching agent suitable for copper, and (d) removing unneeded active solder residue on the lamellar ceramic material after patterning of the copper foil by etching.