Patent ID: 8759140

Claim:
A method for manufacturing a solar cell comprising: forming an emitter layer of a second conductive type opposite a first conductive type on a substrate of the first conductive type; sequentially positioning the substrate in a plurality of chambers to form an anti-reflection layer on the emitter layer and to form a passivation layer including at least one exposed portion on a rear surface of the substrate opposite an incident surface of the substrate; coating a first paste on the anti-reflection layer to form a first electrode pattern; coating a second paste on the passivation layer and on a portion of the substrate exposed by the exposed portion to form a second electrode conductive layer pattern; and performing a thermal process on the substrate having the first electrode pattern and the second electrode conductive layer pattern to form a plurality of first electrodes electrically connected to the emitter layer and to form a second electrode conductive layer including at least one second electrode electrically connected to the substrate, wherein a number of chambers is equal to a sum of a number of layers constituting the anti-reflection layer and a number of layers constituting the passivation layer, wherein a different source gas is injected into each of the plurality of chambers, wherein the passivation layer includes first, second, and third passivation layers each having a different refractive index, wherein the forming of the anti-reflection layer and the passivation layer comprises independently performing a layer formation process in each of the plurality of chambers, wherein the forming of the anti-reflection layer and the passivation layer comprises positioning a mask including at least one opening and at least one blocking portion on the substrate and performing the layer formation process on the substrate using the mask to form the first, second, and third passivation layers, and wherein the same mask is used to form the first, second, and third passivation layers.