Patent ID: 6232559
Filing Date: 2001-05-15
Classification: H05K,Y10T

Abstract:
A multi-layer circuit board, comprising:a plurality of layers of electrically insulating material;at least one artwork feature on a surface of at least one of the plurality of layers of electrically insulating material in the vicinity of at least one edge of the at least one layer of electrically insulating material and visible when laterally viewing the at least one edge of the multi-layer circuit board;at least one reference point on the at least one layer of electrically insulating material, wherein the at least one reference point is visible when laterally viewing the at least one edge of the multi-layer circuit board, and wherein a location of the at least one artwork feature relative to the reference point is determinable visually; andat least one additional feature in or on the multi-layer circuit board formed in accordance with alignment information based on said at least one artwork feature and reference point obtained by a visual detection system.