NOVELTY - The concentrated photovoltaic (CPV) receiver and backplane combination comprises: a backplane; a CPV receiver mounted onto the backplane; and thermally conductive heat spreaders positioned between the receiver and the backplane. The spreaders are thick enough and wide enough for dissipating 50% of the thermal energy conducted from the receiver in a direction including a horizontal component, and towards a portion of the heat spreaders, which is not directly in contact with a CPV receiver portion. One of the spreaders comprises a planar surface mounted to a surface of the backplane.    USE - Used as a CPV receiver and backplane combination.    ADVANTAGE - The combination controls heat outflow to reduce temperature of the solar cell and increases temperature dispersion throughout the receiver and the backplane.    DETAILED DESCRIPTION - The concentrated photovoltaic (CPV) receiver and backplane combination comprises: a backplane; a CPV receiver mounted onto the backplane; and thermally conductive heat spreaders positioned between the receiver and the backplane. The heat spreaders are thick enough and wide enough for dissipating 50% of the thermal energy conducted from the receiver in a direction including a horizontal component, and towards a portion of the heat spreaders, which is not directly in contact with a CPV receiver portion. One of the heat spreaders comprises a planar surface mounted to a surface of the backplane. A thickness of the heat spreader is 0.1-10 mm. The combination further comprises a three soldered interfaces for spreading and dissipating the thermal energy. The first interface is formed between a solar cell (103) and a receiver substrate (109). The second interface is formed between the receiver substrate and the heat spreader. The third interface is formed between the heat spreader and the backplane. The heat dissipation of the CPV receiver and the backplane is efficient enough for maintaining an operating temperature of the solar cell mounted on the receiver to be below 100 degrees C when the ambient temperature is 40 degrees C, wind velocity is 0 m/s, incoming solar irradiance is 1000 W/m2, and the sunlight concentration is x1000. The backplane and the heat spreaders are constructed as a metal core printed circuit board. The heat spreaders are a surface mount component. The backplane comprises a pad (115) for mounting the heat spreaders and the CPV receiver onto the backplane. The pad is thermally and electrically conductive, provides two electrical contacts, and has a size of 1x 1 cm. A linear assembly tolerance of the pad is smaller than 0.15 mm. The receiver comprises two outputs with different electrical potentials, where a first output is connected to a first heat spreader, and the second output is connected to a second heat spreader. An electrically isolating region is formed between the heat spreaders. The isolating region is an air gap having a width of 0.1-2 mm and is filled with a dielectric material molding. The solar cell is mounted on a substrate, where a surface area of the substrate is less than 5 times larger than a surface area of the solar cell. The substrate comprises vias (111) for conducting current from a top face of the substrate to a bottom face of the substrate. The CPV receiver comprises two contact pads mounted on a bottom surface of the receiver, where the contact pads comprise an anode interface and a cathode interface. Electrical connecting pads for delivering current are configured only on the top and bottom surfaces of the receiver substrate. The receiver substrate comprises a circumferential pad for mounting a lens holding frame. INDEPENDENT CLAIMS are included for:    (1) a CPV receiver; and    (2) a method for soldering three components using a double reflow process.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross sectional view of a CPV receiver.    Solar cell (103)    Lens (105)    Receiver substrate (109)    Vias (111)    Pad. (115)