NOVELTY - The solar cell has second electrode portion that is connected with substrate. First electrode portion is connected to emitter section. First dielectric layer is positioned on emitter portion. Second dielectric layer is positioned at rear surface of substrate. Emitter section with conductivity type is positioned in first side of substrate. Second texturing surface is provided in which emitter section includes protrusion portions (111) whose size is smaller than size of first texturing surface. Protrusion portion (111) is positioned at peak (TP1) of protrusion portion (11).    USE - Solar cell for producing electric power from solar energy.    ADVANTAGE - The second protrusion portion is formed in the peak of the first protrusion portion into the curved surface, so that second protrusion portion of the desired shape can be uniformly formed on the peak of the first protrusion portion. Hence surface recombination velocity property can be improved and the open circuit voltage can be increased and the passivation property can be improved. The anti-reflection portion and the protection unit consist of the multi layers that are positioned at front and rear surface of the substrate. The amount of reflections of light reduces the producing of surface passivation effect of the substrate and the efficiency of the solar cell is more and more improved. The silicon oxide film is coated to front and rear surface of the substrate in a thinner manner, so that the problem due to the native oxide film is reduced. Size and uniformity of the second protrusion portion formed on first texturing surface are optimized. The uniformity is efficiently maintained in the range. The reflectivity of light is optimized. The conversion efficiency can be effectively improved.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing solar cell.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of multiple protrusion portions in pyramid shape.    Protrusion portions (11,111)    Finish point (FP)    Start point (SP)    Peak of protrusion portion (TP1)    Valley (VP1)