Patent ID: 8866020

Claim:
A printed circuit board comprising: a support substrate having a conductive property; insulating layers respectively formed on first and second regions of said support substrate; and a wiring trace formed on said insulating layer on said first region, wherein said first region of said support substrate is processed into a printed circuit board portion, and said second region of said support substrate is processed into first and second conductive portions spaced apart from each other, and said second conductive portion having a first part defining a first width, a second part, spaced from the first part and defining a second width, and a third part therebetween, having a minimum width smaller than the first width and smaller than the second width; wherein error between a designed position of an edge of the printed circuit board and an actual position of the edge of the printed circuit board is considered to be defective at a predetermined amount, and a minimum distance between said first conductive portion and said second conductive portion and the minimum width of said second conductive portion are each set to a distance that is double the predetermined amount.