摘要 |
A positioning device is adapted for positioning a tool at a setpoint position on a flat substrate in an X-Y plane, the tool exerting a process force in its axial direction perpendicularly onto the substrate. The tool includes a multicomponent force sensor to measure unwanted process-force components in the lateral direction. The setpoint position of the tool is correctable by the positioning device such that the lateral process-force components are minimized. |