Patent ID: 8088294
Filing Date: 2012-01-03
Classification: H05K

Abstract:
1. A method for manufacturing a printed circuit board, comprising the steps of: providing a copper clad substrate comprising an insulating base film and a copper layer thereon; roughening a surface of the copper layer by applying an atmospheric pressure plasma thereto; forming a photoresist layer on the roughened surface of the copper layer; exposing the photoresist layer; developing the photoresist layer to form a patterned photoresist layer, thereby exposing portions of the copper layer; removing the exposed portions of the copper layer so that the remaining portions of the copper layer form electrical traces; and removing the patterned photoresist layer; wherein, before the step of developing the photoresist layer to form a patterned photoresist layer, a surface of the photoresist layer on the copper layer is roughened by applying an atmospheric pressure plasma thereto.