Patent ID: 9018531
Filing Date: 2015-04-28
Classification: H05K,Y10T

Abstract:
1. A multilayer circuit board comprising: multiple core boards stacked together, wherein each of the core boards comprises an insulation layer and at least one conductor layer attached together, wherein each conductor layer comprises a circuit, wherein each core board has a number of identification conductors disposed at an edge of the at least one conductor layer, wherein the number of identification conductors for each core board is different from each other such that each core board has a different number of identification conductors, wherein the number of identification conductors for each core board forms an identification pattern on a side surface of the core board along a stacking direction of the core boards, wherein the identification patterns of the multiple core boards are different from each other on side surfaces of the multilayer circuit board along the stacking direction of the core boards, wherein the multiple core boards comprise a first core board, a last core board, and multiple intermediary core boards between the first core board and the last core board along the stacking direction of the core boards, and wherein the number of identification conductors for each core board increases along the stacking direction of the core boards such that the first core board has a fewest number of identification conductors, the last core board has a greatest number of identification conductors, and the multiple intermediary core boards have numbers of identification conductors that are between the fewest number of identification conductors and the greatest number of identification conductors.