An apparatus for dispensing a molten material from a reservoir of molten material includes a dispensing chamber in communication with the reservoir and a first valve adapted to regulate communication of the dispensing chamber with the reservoir. Electroplating is employed to monitor the changes in the porosity of the ARC caused by the pin holes during solar cell manufacturing. In operation, overbooking is introduced in small increments until a threshold is reached, at which point overbooking is reduced in a large step. In normal mode, a logic block can implement combinational, sequential, or other functions and still later be as a master-slave flip-flop. A control system receives the measurements and their corresponding locations.