A capacitor and a method of manufacturing the capacitor are disclosed. The capacitor may include a board, a polymer layer formed on one side of the board, a circuit pattern selectively formed over the polymer layer, and a titania nanosheet corresponding with the circuit pattern. Embodiments of the invention can provide flatness in the board, and allows the copper of the board to maintain its functionality as an electrode while increasing the adhesion to the titania nanosheet. The titania nanosheet may thus be implemented on a patterned board in a desired shape, number of layers, and thickness.