Contact drying is a short, mid-temperature process used to dry the metal paste that is screen printed onto the silicon solar cell. It can be undertaken in a standalone drier or as part of a combined drying & firing furnace.
The drying process is critical where there can be up to three ovens on each production line. Setting up the drying process correctly will optimize production yield and ensure highest cell conversion efficiencies.
- Ensure the drying profile meets the paste specification
- Quickly set up or change process settings
- Match the dryer performance to the firing furnace