1. A method of manufacturing a conductive layer on a support body, the method comprising:a first process of forming a precursor layer containing at least one of metal particles and metal oxide particles on the support body;
a second process of forming a sintering layer by irradiating an electromagnetic wave pulse on the precursor layer; and
a third process of compressing the sintering layer,
wherein the conductive layer is formed by repeating the first to third processes N times, where N denotes a natural number equal to or greater than 2, on the same location of the support body, and
the third process performed in the first to (N?1)th operations includes forming a surface of the sintering layer in an uneven shape.