A microscope that scans the surface of a sample with a beam of electrons, causing a narrow channel of tunneling electrons to flow between the sample and the beam, and producing three-dimensional images of atomic topography and structure.隧穿扫描显微镜：以电子束来扫描样本表面的一种显微镜，能使狭窄的隧穿电子束于样本与电子束中流动，并能造出原子形态及结构的三维立体影像