Conventional electroplating technology is applied to deposit a layer of metal on bifacial cells or on cells with contacts on the rear side (IBC solar cells). The conducting side which is to receive a metallised layer is cathodised with a contact frame and coated as it passes through the machine. The deposition is achieved using soluble or insoluble anodes. This method can be used for all metals used in photovoltaic systems.

Inline system for the metallisation of IBC solar cells (rear side contact cells)

• Can be used for the deposition of different metals
• Increased cell efficiency due to higher conductivity
• Stable and uniform local voltage distribution within the solar cell
• High yield due to gentle transport in carriers
• High productivity due to high plating rates
• High process stability guarantees high reproduction accuracy
• Process control achieved by comprehensive process monitoring and visualisation
• Stable processing due to continuous replenishment of the process fluids