Patent ID: 8957319
Filing Date: 2015-02-17
Classification: H05K,Y10T

Abstract:
1. A printed circuit board manufactured by using a method for removing a seed layer in manufacturing the printed circuit board, including forming a corrosion layer on surfaces of the seed layer and a plating layer by performing a chemical reaction of a substrate from which the seed layer is exposed in a reactor in which a predetermined gas is filled, and removing the seed layer by irradiating a laser on the corrosion layer to remove the seed layer, removing the seed layer by irradiating a laser on the corrosion layer to remove the corrosion layer, the printed circuit board comprising: a printed circuit board corresponding to a base; the seed layer formed on an upper surface of the printed circuit board according to a predetermined pattern; and the plating layer having a predetermined pattern and laminated on the seed layer, wherein the plating layer has a chlorine (Cl) component present on the upper surface and a side surface thereof.