Patent ID: 8677929

Claim:
A system for fabrication of solar cells, comprising: a conveyor for transporting the solar cells; a plurality of inkjet heads positioned over the conveyor, said inkjet heads configured to print a removable mask over selected areas of the solar cells; an inkjet reservoir to provide masking material to the inkjet heads; a drying station positioned downstream of said plurality of inkjet heads to dry said removable mask; position sensors sensing motion of the solar cells and sending position signals; a controller configured to receive the position signals from the position sensors and operating said plurality of inkjet heads and said drying station a mask lifting station configured for removing the removable mask, wherein said mask lifting station comprises an ultrasonic tank or a megasonic tank, three entry conveyors arranged abreast and configured to deliver three solar cells abreast into said mask lifting station, and wherein a middle entry conveyor is aligned perpendicularly to an entry side of said mask lifting station, while two external conveyors are aligned obliquely to said entry side of said mask lifting station, such that no two of the entry conveyors are parallel to each other.