Wiring board, wiring board manufacturing methods, and wiring board assembly

Abstract

The invention relates to a method of producing a wire-connected circuit board including the first step of preparing the wire-connected circuit board assembly (1) including the support plate (2), the wire-connected circuit boards (3) supported by the support plate, and the joint (4) connecting the support plate to the thick wire-connected circuit boards, having one flat surface and the other surface (22) facing a surface (21) at equal distances along the thickness, and has a thin part in the red surface, the other side is concave towards one surface and the second step creates a rough edge (28) protruding towards the other side along the thickness and thin section.