SunPower Corporation
SYSTEMS FOR LASER ASSISTED METALLIZATION OF SUBSTRATES

Abstract:

A system for fabricating solar cells. The system including one or more of: a laser assisted metallization patterning unit adapted to expose a metal foil located over a substrate to a laser beam to form a conductive contact structure comprising a locally deposited metal on the substrate; a debris removal unit adapted to remove debris from a top surface of a metal foil that is attached to a top surface of a substrate; a carrier attachment unit adapted to attach a carrier to one the top surface of the metal foil; and a metal removal unit adapted to remove the carrier and at least a portion of the metal foil.