Abstract:
A deformation state of a predetermined specific site as a site of singulated substrates where the electrodes are liable to be positionally deviated due to deformation is detected for each of the singulated substrates. In component mounting operation for picking up electronic components, and mounting the electronic components on the singulated substrates, it is determined whether the mounting of the electronic component on the specific site of the singulated substrates is suitable or not, based on the detection results of the deformation state for each of the singulated substrates. The operation of mounting all of the electronic components on the singulated substrate having the specific site determined to be not suitable in mounting is canceled.