US Patent 7275314 Electronic component mounting apparatus and electronic component mounting method

In an electronic component mounting apparatus for taking out a chip 6 from a component supply portion 4 to mount to a board 16 held by a board holding portion 10, an image of a supply portion reference mark provided at a mark post 18 of the component supply portion 2 is taken by a second camera 35 moved by a camera moving mechanism, a camera coordinates system is calibrated based on a result of taking the image, thereafter, a position of the chip 6 is recognized by the second camera 35 and the chip 6 is picked up by a mounting head based on a result of the recognition. Thereby, stable pick up accuracy can be ensured by calibrating an aging variation of the coordinates system owing to thermal elongation or contraction of the camera moving mechanism.