Method for metallization of at least one photovoltaic cell comprising a substrate based on a semiconductor with a first type of conductivity, a layer doped with a second type of conductivity produced in the substrate and forming a front face of the substrate, an antireflection layer produced on the front face of the substrate and forming a front face of the photovoltaic cell. This invention also relates to inbred maize lines derived from inbred maize line PH91C, to methods for producing other inbred maize lines derived from inbred maize line PH91C and to the inbred maize lines derived by the use of those methods. A fixing liquid, typically a resin, is placed over the gel. The electrode connecting portion of one of the substrates and the electrode connecting portion of the other of the substrates have respective electrode portions at regions that are not opposed to each other. The total force based threshold may be based upon quantities and pressing forces of each of the connectors types. Timing is set for data input so that the signal detected by the photodetector may be input to the computer at the moment of laser irradiation.