Method for the electrochemical coating of a substrate by brush plating and device for carrying out said method

A process for electrochemically coating a substrate by brush plating, comprising:

• supplying an electrolyte, in which particles are dispersed, to a carrier, the electrolyte and the particles being supplied to the carrier by a process comprising:
• supplying the electrolyte to the carrier via a first conduit system, in which the concentration of particles is at least reduced compared to a required concentration of particles for the coating, or no particles are present;
• and
• supplying particles to the carrier via a second conduit system fluidically independent from the first conduit system, the second conduit system adding particles to the electrolyte until the required concentration of particles is achieved therein;
• using capillary channels in the carrier to guide the electrolyte, in which particles are dispersed, from the first and second conduit systems to the substrate;
• and
• electrochemically forming a metallic layer from the electrolyte, in which particles are dispersed, the metallic layer having a matrix in which the particles are incorporated.

A device for electrochemically coating a substrate by brush plating, comprising:

• a carrier through which liquid can pass for applying an electrolyte to the substrate for coating the substrate;
• a first conduit system to supply the electrolyte, the first conduit system having at least one outlet on the carrier;
• and
• a second conduit system, which is fluidically independent from the first conduit system such that the second conduit system can be fed independently of the first conduit system, the second conduit system discharging into the first conduit system or into the carrier.