JPH0471346B

PURPOSE:To improve the reliability making lead connection assured by a method wherein a conductor lead is laid between flexible films and a solder layer. CONSTITUTION:A conductor lead 9 is partially laminated on a part of flexible films 8 subject to specified distribution. Conductive patterns 2a, 2b of a solar battery element 1 are held by transparent pressurizing bodies 11a, 11b outside a pair of flexible film conductor leads 20 to adhere closely to respective conductor leads 90. At this time, a conductor lead compound layer 90 on the surface side of a solar battery element 1 and another conductor lead compound layer 90 on the backside of another solar battery adjoining the former are also sticked to with each other. Finally optical heat ray 14 is induced by high energy optical heat source device to be throttled by a head 13 so that said ray 14 may reach the conductor lead compound layers 90 of the pair of flexible film conductor leads 20 transmitting the transparent pressurizing bodies 11a, 11b.