NOVELTY - The method involves performing thermal process such that material of a seed formation layer and material of a photoelectric conversion unit react with each other to form a chemical bonding layer (422a, 442a) at a portion at which the seed formation layer and the photoelectric conversion unit are adjacent to each other. A conductive layer (424, 444) and a capping layer (426, 446) are formed on the formation layer in a state in which a mask is formed on the seed formation layer. The seed formation layer is patterned using one selected from between the conductive and capping layers as the mask.    USE - Method for manufacturing a solar cell.    ADVANTAGE - The method enables utilizing a textured front surface of a semiconductor substrate with concavo-convex-shape for increasing surface roughness so as to reduce reflectance of incident light upon the textured front surface of the semiconductor substrate. The method enables increasing quantity of light reaching a tunnel junction formed by a base region and a conductive region, so that light loss of the solar cell can be minimized. The method ensures that a rear surface of the semiconductor substrate is relatively smooth, so that roughness of a flat surface is less than that of the front surface of the semiconductor substrate by mirror polishing. The method enables utilizing an anti-reflection film to increase open-circuit voltage and short-circuit current of the solar cell by improving conversion efficiency of the solar cell.    DETAILED DESCRIPTION - The chemical bonding layer is made of nickel silicide (NiSi) material. The anti-oxidation layer (400) is made of metal, titanium (Ti), tantalum (Ta), tungsten (W), molybdenum (Mo), chromium (Cr), zinc (Zn), an alloy and nitride materials. An INDEPENDENT CLAIM is also included for a solar cell.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of first and second electrodes of a solar cell.    Contact hole (34a)    Anti-oxidation layer (400)    Chemical bonding layers (422a, 442a)    Conductive layers (424, 444)    Capping layers (426, 446)