| 摘要 |
<p>Reference marks arranged at specified intervals on a glass board are recognized, and from its recognition results, offset values for individual areas matching the board size are determined as numerical values for correction use, and further corresponding offset values for individual movement positions of a component placing head are reflected as numerical values for correction use in operation of placing position correction, mark recognition correction, or measurement of placing position offset values, respectively. Thus, high-accuracy placing is achieved. Moreover, correction of positional displacement of a component holding member due to an inclination of the component placing head is performed.</p> |
