Microscope tunnel SEM images (STM) of any microscope probe SEM images, which is based on conductive surface by the tip of a very narrow ( few Nm ) and the change in the flow rate of the transmission according to the distance it works. Yet the microscope can be arrangement of atoms on the surface of the grid to the image, drew. In other words, the image created represents the spatial arrangement of the bar, the conductance of the metal or semiconductor.

flow in this species of microscope directly (DC) is flowing as you can with the distance tip-sample.