| abstract |
The invention relates to a printed circuit board, particularly a ceramic circuit board, having a first layer (1), wherein the first layer is a metal layer, and is provided with a connector for the electric conducting connection via laser welding (4). It is a known fact that with laser welding the accurate control of the laser parameters within the allowed tolerances is very difficult. A particular problem is a laser welding having an energy that is too high due to standard deviation. A printed circuit board is provided, having a second layer (9, 11, 12, 20), having at least one protective function in order to prevent the detrimental effects of laser welding (4; 14 to 19), since the second layer is provided at least with the connection by means of laser welding for the connection in a material fit. Further, advantages are created in connection/step-over combinations, or connections having an insulation layer (6). |