Patent ID: 7134188

Claim:
A parts mounting apparatus for positioning and mounting a first part and a second part, said apparatus comprising: a suction head, having a head reference mark which can be observed from above, for suctioning said first part at a lower end portion of said suction head; a stage, having a stage reference mark which can be observed from below, for holding a second part at an upper end portion of said stage; a driving mechanism for relatively moving said suction head and said stage in X, Y, Z, and θ directions; a first optical system for taking images of said second part held by the stage, and said head reference mark, from above said suction head; a second optical system, disposed so as to generally face said first optical system with the optical axis thereof aligned with the optical axis of said first optical system, for taking images of said first part suctioned to said suction head, and said stage reference mark, from below said stage; a computation device for calculating the relative position between said first part and said suction head, and the relative position between said second part and said stage, based upon image information from said first and second optical systems; and a control device for performing positional correction for said suction head and said stage so that the positions of said first part and said second part satisfy a predetermined relation based upon said positional information and said relative positional information from said first and second optical systems detecting said head reference mark, and stage reference mark with said suction head and stage being positioned at the mounting position.