| 摘要 |
PURPOSE:To clarify a conveying direction and handling direction of a printed circuit board in a mounting apparatus, etc. CONSTITUTION:A mark 2 having a direction indication unit 2a of an arrow state at one end is provided on a printed circuit board 1 thereby to clarify a direction for conveying the board to an automatic soldering unit, an automatic component mounting unit, a reflow furnace, etc., in a mounting step and a direction for handling the board in a manual work necessary during the step and to write necessary additive information in the step. |
