Patent ID: 7528470

Claim:
A conductor board comprising: at least one layer ( 2 ) of ceramic areally provided on two mutual opposed faces with at least one metallization ( 3 , 4 ) each and having at least one through contacting ( 5 ) in the region of an aperture ( 6 ), metal foils forming said metallization being applied to said faces by means of direct copper bonding technique or by active soldering, said foils cover the at least one aperture ( 6 ), the metallization being electrical connected to each other through the aperture ( 6 ), wherein only one of the metallization ( 3 , 4 ) is permanently deformed so as to form an conical section ( 3 ′) acting as a through contacting ( 5 , 5 a , 5 b ) in the region of the aperture ( 6 ) and extending into the aperture ( 6 ), and a tip of said section ( 3 ′) is electrically connected to the other metallization ( 4 ) in the region of the aperture ( 6 ) by electrical welding.