PRINTED CIRCUIT BOARD AND PART MOUNTER FOR MOUNTING PARTS ON THE BOARD

摘要

PROBLEM TO BE SOLVED: To detect locally distributed distortion or non-uniformly distributed distortion on a printed circuit board on a printed circuit board used for mounting parts. SOLUTION: A pattern 11 is added like a concentric circuit to a printed circuit board 12 or uniformly arranged marks 13 are added to a printed circuit 14 as an object to be measured distributed on the whole board. Thus, the locally distributed distortion generated on the printed circuit boards 12 and 14 or distortion non-uniformly distributed on the board can be detected.