CONTACT DRYING AND FIRING

The contact firing and metallization application is used in the manufacturing of solar cells. It involves the process by which thickfilm conductive inks (usually silver and aluminum) are applied to the front and back side of the solar cell. After the solar cell has been doped and an anti-reflective coating has been applied, the cell will have conductive material dispensed, screen printed or spot printed onto it. The material will be dried and subsequent layers are added using the same method. The final step is to fire the solar cells in a rapid thermal processing environment, ranging in temperature from 780^oC to 900^oC.

BTU offers the PVD line of near infrared lamp furnaces to handle the rapid heating tasks of this application. This is an in-line continuous furnace designed for rapid thermal processing.

PRODUCTS:
Meridian In-Line Diffusion System • Meridian Diffusion Furnace
Metallization • Anti Reflective Coating

PROCESS:
Diffusion • Metallization • Anti Reflective Coating • Thin Film