The present disclosure discloses a method for positioning an object in a positioning device and the positioning device thereof. Each particle comprises a rounded polymeric shell defining an internal cavity and having a maximum outer dimension of 50 \u03bcm-250 \u03bcm. The system includes a reconfigurable frame positioning the radiation detectors at fixed viewing angles of the ROI and at least one processor. The data processing unit maps the distance data on a grid layer, detects the location of the vehicle based on the result of the mapping, detects the location of the obstacle based on the detected location of the vehicle, and modifies the detected location of the vehicle using the distance data. The method further includes forming source and drain regions adjacent to the gate structure and fin structures.