NOVELTY - Device comprises a conductive surface (12) and electrical contacts (14) by which electric current is passed. The contacts comprise conductive seeds (16) deposited on conductive surface, electrically insulating layer (18), which covers discontinuously seeds to form openings leaving access to seeds, and plating layer (22) recovering discontinuous insulating layer and deposited on seeds which are accessible through openings and form points from which deposit of plating layer can start, and conductive surface, which doesn't comprise any contacts, is continuously covered by insulating layer.    USE - As a device, such as a solar cell (preferably a silicon hetero-junction solar cell) (claimed).    ADVANTAGE - The device allows the strengthening of electrical contacts of any shapes on any conductive surface (including metallic), provides rough seed-layer and chooses application technique for depositing rough seed-layer. The electrical contacts have a reduced size and an increased conductivity.    DETAILED DESCRIPTION - Device comprises a conductive surface (12) and electrical contacts (14) by which an electric current is able to be passed, where the electrical contacts comprise conductive seeds (16) deposited on the conductive surface, an electrically insulating layer (18), which covers discontinuously the conductive seeds in order to form openings leaving access to the conductive seeds, and a plating layer (22) recovering the discontinuous insulating layer and deposited on conductive seeds which are accessible through the openings and form points from which the deposit of the plating layer can start, and in that the rest of the conductive surface, which doesn't comprise any electrical contacts, is continuously covered by the electrically insulating layer. An INDEPENDENT CLAIM is included for producing a device involving: providing a conductive surface; depositing, on the conductive surface, conductive seeds in places corresponding to the positions of the electrical contacts; depositing an electrically insulating layer on the full conductive surface in order to form a discontinuous electrically insulating layer in the region of the conductive seeds and to provide, in the discontinuous insulating layer, openings leaving access to the conductive seeds and in order to form a continuous electrically insulating layer on the rest of the conductive surface; recovering the discontinuous electrically insulating layer and conductive seeds which are accessible through the openings with a plating layer, the plating layer starting to grow from the conductive seeds accessible through the openings.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-section view of a solar cell.    Solar cell (10)    Conductive surface (12)    Electrical contacts (14)    Conductive seeds (16)    Electrically insulating layer (18)    Plating layer (22)