NOVELTY - A photovoltaic apparatus comprises semiconductor photovoltaic cell structure (11), electrical contacts, and back side electrical contact on back side surface (13) of the other of respective portions of the semiconductor material. The photovoltaic cell structure has two side surfaces provided by respectively doped portions of the semiconductor material forming photovoltaic junction.    USE - The photovoltaic apparatus is useful for making solar cell apparatus.    ADVANTAGE - The photovoltaic apparatus is produced in a simple way with reduced front side shading causing greater than or equal to5-10% electric current to pass through the solar cell, and no conventional screen printed silver/aluminum pads on the back side. The apparatus reduces the production costs of solar cell that with conventional solar cell because less amount of silver is used in forming contacts. The apparatus provides less area occupied by metallization and back surface field area is not interrupted by silver/aluminum fingers. The cell generates voltage of less than or equal to3 greater than convention cells. The apparatus provides increase efficiency of solar cell by 10-15%.    DETAILED DESCRIPTION - The electrical contacts are embedded in the front surface of one of portion of the semiconductor material. The electrical contacts are distributed in two dimensions across the surface and are separated from each other. The electrical contacts are separated from each other and are in electrical contact with respective portions of the semiconductor material. The back side electrical contact is in electrical contact with the semiconductor material portions. The electrical contacts are distributed in two orthogonal directions across the surface.    DESCRIPTION OF DRAWING(S) - The figure shows process diagram of forming contacts on semiconductor wafer.    Semiconductor photovoltaic cell structure (11)    Back side surface (13)    Front side surface (14)    Mask (150)    Electric contact paste (157)    Spreader (158)