| 摘要 |
PROBLEM TO BE SOLVED: To shorten an inspection time of circuit boards each having many parts mounted thereon moving a production line, by facilitating visual recognition of boundaries between the circuit boards to reduce the number of missing- to-mount parts on the circuit boards and also to allow easy confirmation of faulty part. SOLUTION: In manufacture of a circuit board on which an array diagram of parts to be mounted thereon is printed thereon, a boundary recognition line 2 is first printed on a circuit board 1 in the vicinity of its outer periphery in a printing step of the circuit board. Thereafter, when it is desired to continuously move a plurality of such circuit boards 1 on a production line in an inserting or inspection step of the circuit boards 1, a plurality of the circuit boards 1 are positioned adjacent to each other in the vicinity of their boundary recognition lines 2. Thereby an inspector can reliably recognize the boundaries between the circuit boards 1 continuously moving on the production line on the basis of the boundary recognition lines 2. |
