FLEXIBLE CIRCUIT BOARD AND ELECTRICAL CONNECTION DEVICE

摘要

Disclosed is a flexible circuit board wherein the mechanical strength of an internal conductive path is increased by suppressing increase in electrical resistance of the internal conductive path. The flexible circuit board comprises a flexible insulating synthetic resin film and a conductive path arranged on or inside the film. The conductive path has a multilayer structure composed of a first conductive material layer and a second conductive material layer which has higher toughness than the first conductive material layer.