NOVELTY - Making integrated back-sheet (30) involves providing polymeric wire mounting layer (38); providing elongated electrically conductive wires and adhering electrically conductive wires to first side of polymeric wire mounting layer in lengthwise direction of polymeric wire mounting layer; providing polymeric back-sheet and adhering second side of polymeric wire mounting layer to back-sheet; arranging columns of openings in interlayer dielectric layer over electrically conductive wires adhered to wire mounting layer; and attaching polymeric interlayer dielectric layer to wire mounting layer.    USE - For making an integrated back-sheet which is used in forming back-contact solar cell module (claimed), or back-contact photovoltaic modules.    ADVANTAGE - The method is more efficient; provides back-contact photovoltaic module having improved efficiency and lifetime; and avoids the step of placing and connecting multiple conducting ribbons between solar cells which is time consuming and difficult to do consistently.    DETAILED DESCRIPTION - Making an integrated back-sheet (30) involves providing a polymeric wire mounting layer (38) having opposite first and second sides and having a lengthwise length and direction and a crosswise direction perpendicular to the lengthwise direction; providing elongated electrically conductive wires and adhering electrically conductive wires to first side of polymeric wire mounting layer in lengthwise direction of polymeric wire mounting layer, where the electrically conductive wires are aligned with the lengthwise direction of polymeric wire mounting layer, the electrically conductive wires each having a cross sectional area of at least 70 square mils along their length, the electrically conductive wires not touching each other upon being adhered to the polymeric wire mounting layer, and the electrically conductive wires extend at least two times the length of solar cell of back-contact solar cell module; providing a polymeric back-sheet, and adhering second side of polymeric wire mounting layer to back-sheet; providing a polymeric interlayer dielectric layer having opposite first and second sides and having a lengthwise length and direction and a crosswise direction perpendicular to the lengthwise direction, and forming openings in the polymeric interlayer dielectric layer, the openings are arranged in columns extending in the lengthwise direction of the polymeric interlayer dielectric layer; arranging the columns of openings in the interlayer dielectric layer over the electrically conductive wires adhered to the wire mounting layer such that the openings in each column of openings are aligned with and over one of the electrically conductive wires; and attaching the polymeric interlayer dielectric layer to polymeric wire mounting layer. INDEPENDENT CLAIMS are included for the following:    (1) making back-contact solar cell module involving providing solar cell array of at least four solar cells each having front light receiving surface, active layer that generates electric current when front light receiving surface is exposed to light, and a rear surface opposite front surface, where the rear surface has positive and negative polarity electrical contacts on it, at least two of solar cells of solar cell array arranged in a column, providing polymeric wire mounting layer, providing elongated electrically conductive wires and adhering electrically conductive wires to first side of polymeric wire mounting layer in lengthwise direction of polymeric wire mounting layer, where the electrically conductive wires extend at least length of a column of solar cells in solar cell array, providing polymeric interlayer dielectric layer, placing interlayer dielectric layer between rear surfaces of solar cells of solar cell array and first side of wire mounting layer, and arranging columns of openings in interlayer dielectric layer over conductive wires adhered to wire mounting layer such that openings in columns of openings are aligned with and over one of conductive wires, and aligning openings in interlayer dielectric layer with positive and negative polarity contacts on rear surfaces solar cells of solar cell array, where the positive and negative polarity electrical contacts on solar cells are electrically connected to conductive wires through openings in polymeric interlayer dielectric layer, adhering polymeric interlayer dielectric layer to first surface of polymeric wire mounting layer and to rear surface of solar cells of solar cell array, providing polymeric back-sheet, and attaching second side of polymeric wire mounting layer to the polymeric back-sheet;    (2) an integrated back sheet for solar cell module with electrically connected solar cells, comprising polymeric wire mounting layer having length of at least two times length of solar cell in solar cell module, the elongated electrically conductive wires adhered to first side of polymeric wire mounting layer in lengthwise direction of polymeric wire mounting layer, at least one of electrically conductive wires being cut at at least one selected point along length of electrically conductive wires, and a polymeric back-sheet attached to second side of polymeric wire mounting layer; and a solar cell module, comprising solar cell array of at least four solar cells arranged in column having length, where each of solar cells has a front light receiving surface, an active layer that generates an electric current when front light receiving surface is exposed to light, and rear surface opposite front light receiving surface, the polymeric wire, elongated electrically conductive wires, polymeric interlayer dielectric layer, the polymeric interlayer dielectric layer adhered to rear surfaces of solar cells of solar cell array and to the first side of polymeric wire mounting layer, where the columns of openings in polymeric interlayer dielectric layer are arranged over electrically conductive wires adhered to polymeric wire mounting layer such that the openings in each column of openings are aligned with and over one of electrically conductive wires, and where the openings in polymeric interlayer dielectric layer are aligned with positive and negative polarity contacts on rear surfaces solar cells of solar cell array, where the positive and negative polarity electrical contacts on rear surfaces of solar cells are electrically connected to electrically conductive wires through openings in polymeric interlayer dielectric layer, adhering polymeric interlayer dielectric layer to first surface of polymeric wire mounting layer and to rear surfaces of solar cells of solar cell array, and polymeric back-sheet.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of back-sheets with integrated wire circuits.    Back-sheet (30)    Outer layer (32)    Inner layers (34, 36)    Polymeric wire mounting layer (38)    Wires (40, 42)