Front and back contact annealing
In addition this furnace includes a PECVD tube for PECVD AR coating.
Metallization of the solar cells starts with screen printing and is completed with drying and firing the contacts. All of the three processes can be done in C-Silicon based Solar Cell Lab with the screen printer and the firing-drying furnace.In addition to screen printing, the mask aligner, spin coater in the lithography room together with the e-beam evaporator makes it possible to use photolithography for metallization in more advanced lab studies.
Surface of both 4” mono crystalline and 156x156mm multi crystalline wafers are textured using the temperature controlled KOH -Acidic texturing tank. Acid stirring system increase the homogenity of chemical reactions in the tank