Patent ID: 8094187

Claim:
A method of placing a component at a desired position on a substrate by a placement device, the method comprising the steps of: supporting the component using the placement device, the placement device including at least one mark and at least one mirror arranged between the mark and a substrate carrier, a mirror image of the mark in the mirror being located closer to the substrate than the mark itself; displacing the component by the placement device to an intermediate position above the desired position on the substrate; determining a difference between the intermediate position and the desired position of the component on the substrate by at least a camera and a processor, the step of determining the difference comprising the step of: creating, from a side of the component remote from the substrate, an image of at least a part of the substrate comprising the desired position and of at least the mirror image of the mark of the placement device supporting the component; displacing the component by the placement device on the basis of the difference between the intermediate position and the desired position with respect to the substrate; and positioning the component at the desired position on the substrate.