摘要 |
A jig (170) for use in measuring an accuracy with which a mounting device (24, 34; 202, 204) mounts at least one proper member (32) on a proper substrate (20), the jig being set, in place of the proper substrate, on the mounting device (24; 204), the at least one proper member or at least one standard chip (169; 222; 240, 300) being mounted on the jig by the mounting device (34; 202), the jig having at least two reference marks (174) at respective positions which assure that respective images of the reference marks of the jig and an image of at least a portion of the proper member, or the standard chip, mounted on the jig are simultaneously taken by a single image taking device (82), so that the accuracy is determined based on the images taken by the image taking device. <IMAGE> |