Patent attributes
A circuit board device comprises a first wiring board (79) having plural first electrode terminals (73, 75, 77) for connection row-arranged on a surface layer, a second wiring board (87) having plural second electrode terminals (81, 83, 85) for connection row-arranged on a surface layer, and an anisotropic conductive member (89) disposed therebetween to the electrode terminals (73, 75, 77, 81, 83, 85). A local portion of each of the wiring boards (79, 87) has a step difference to divide and dispose the electrode terminals (73, 75, 77, 81, 83, 85). A local portion of the anisotropic conductive member (89) corresponding to the step difference has a step shape that is capable of contacting with the step difference. A laminate comprising respective wiring boards (79, 87) and the anisotropic conductive member disposed therebetween is pressed and held in a lamination direction.
