Patent ID: 8268537
Filing Date: 2012-09-18
Classification: H05K,Y10T

Abstract:
1. A method for manufacturing printed circuit boards, comprising: providing a printed circuit board substrate including a metal-clad substrate and multiple spaced circuit substrates, {M defining multiple processing regions, {K forming a photoresist layer on an opposite side of the metal-clad substrate to the circuit substrates, the photoresist layer including multiple photoresist layer sections, {P exposing the ith photoresist layer section, P rotating the printed circuit board substrate an angle of 360/N degrees about the center of the circle; exposing the i+1th photoresist layer section, P developing the ith photoresist layer section, P etching the metal-clad substrate at the i+1th processing region, K developing the i+1th photoresist layer section, P etching the metal-clad substrate at the i+1th processing region, K wherein the ith and i+1th photoresist layer sections, P