SOLAR CELL AND MANUFACTURE THEREOF

PURPOSE:To reduce cost by connecting the electrode of the surface of a second semiconductor layer and the electrode of the rear of an isolation layer and preparing a plurality of cells from one wafer. CONSTITUTION:A semiconductor substrate 1 is composed of a first conductivity type first region, and a first conductivity type first semiconductor layer 4 is formed onto the top face of the first region. A second conductivity type second region 6 is shaped extending over the overall width of the rear from the surface of the end section of the upper section of the substrate 1 at the end section. A second conductivity type second semiconductor layer 3 covers the whole surface of the semiconductor layer 4 while being connected to the region 6. The electrode 7 of a first pole is formed into the first region section of the rear of the substrate 1. The surface electrode 8 of a second pole is shaped onto one part on the semiconductor layer 3 and the region 6. The rear electrode 9 of the second pole is formed into the region 6 section of the rear of the substrate 1. The side face electrode 10 of the second pole connects the electrode 8 and the electrode 9. Accordingly, a plurality of cells can be prepared from one wafer, and cost is reduced.