NOVELTY - The solar cell module has a semiconductor substrate (1), collector electrode (6), solar cell element (10) having bus bar electrode (5a), solder (7), and inner lead (8). The element (10) is orthogonal with respect to longitudinal direction of inner lead. The cross-sectional shape which disconnects the element (10) in a plain which passes along opening satisfies preset relation between width of substrate and that of bus bar electrode.    USE - As solar cell module.    ADVANTAGE - The output reduction by crack of the back side electrode and solder junction portion is reduced, and solar cell module of high reliability is obtained.    DETAILED DESCRIPTION - The solar cell module has a semiconductor substrate, collector electrode, solar cell element, solder, and an inner lead of long and slender shape. The collector electrode is provided on whole surface of one main surface side of the substrate, and has openings (9) in predetermined position. The solar cell element is provided with bus bar electrode for output extraction, and is connected to the collector electrode so that the openings are covered. The solder covers the bus bar electrode. The inner lead is connected to the bus bar electrode through solder, and is provided such that it passed along the upper portion of the openings. The solar cell element is orthogonal with respect to longitudinal direction of inner lead. A preset relation is satisfied between width of semiconductor substrate and bus bar electrode, when the cross-sectional shape which disconnects the solar cell element in a plain which passes along opening. The relation is 1.7 less than or equal toL2/L1 less than or equal to 3.1, where L1 is width of semiconductor substrate side of the opening, and L2 is width of bus bar electrode.    DESCRIPTION OF DRAWING(S) - The figure shows the cross-section of backside electrode of solar cell element based on the solar cell module. (Drawing includes non-English language text).    semiconductor substrate (1)    bus bar electrode (5)    collector electrode (6)    solder (7)    inner lead (8)    openings (9)    solar cell element (10)