MANUFACTURING METHOD OF CIRCUIT BOARD, AND CIRCUIT BOARD

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a circuit board by which a narrow pitch of a conductor pattern is possible, and the circuit board. SOLUTION: The manufacturing method of the circuit board comprises: a current-carrying layer forming process of forming a current-carrying layer 6 on an insulating substrate 2; a mask forming process of forming a mask 11 for patterns on the current-carrying layer 6; and a conductor layer forming process of forming a conductor layer 7 by means of a PR electrolytic plating treatment periodically inverting a current direction in a non-forming region of the mask 11 for patterns on the current-carrying layer 6. COPYRIGHT: (C)2007,JPO&INPIT