Abstract: Disclosed are a solar cell and a manufacturing method thereof. The solar cell in accordance with an embodiment of the present invention includes: a substrate having a plurality of holes formed on one surface thereof; a metal layer formed on an inner wall of the hole and on one surface of the substrate; a p-type semiconductor coated on the metal layer; an n-type semiconductor formed inside the hole and on one surface of the substrate; a transparent conductive oxide formed on the n-type semiconductor; and an electrode terminal formed on the p-type semiconductor and on the transparent conductive oxide.

Abstract: Disclosed are a solar cell and a manufacturing method thereof. The solar cell in accordance with an embodiment of the present invention includes: a substrate having a plurality of holes formed on one surface thereof; a metal layer formed on an inner wall of the hole and on one surface of the substrate; a p-type semiconductor coated on the metal layer; an n-type semiconductor formed inside the hole and on one surface of the substrate; a transparent conductive oxide formed on the n-type semiconductor; and an electrode terminal formed on the p-type semiconductor and on the transparent conductive oxide.

Abstract: A printed circuit board and a method of manufacturing the printed circuit board are disclosed. The method of manufacturing the printed circuit board can include adhering a film to an insulation base, in which the film is configured to flatten a surface of the insulation base, thermosetting the film, and forming a circuit pattern on the film by way of ink-jetting. In accordance with the present invention, a surface of the insulation base can be flattened and the surface roughness thereof can be made uniform, so that the diffusivity of the circuit pattern can be controlled while printing a minute circuit pattern and an adhesive strength between the insulation base and the circuit pattern can be increased.