| 摘要 |
PURPOSE:To constitute a mounting circuit device having high reliability by improving the contrast of a recognition mark with the peripheral section of the recognition mark and enhancing the accuracy of the read of the recognition mark in a mounter. CONSTITUTION:Light and dark color difference is marked to the surface of a recognition mark 5' in an at least layout region in the recognition mark 5' or on a base material section surface in the vicinity of the region on a surface mounting type multilayer printed wiring board 1' having the recognition mark 5' on a surface. |
