Meaning
Analytical imaging combines a focused ion beam with scanning electron microscopy to visualize the internal structure of a sample. Utilizing cross sectional fib sem allows engineers to precisely cut into a semiconductor or a coated surface to inspect subsurface features without destroying the entire component. A gallium ion beam removes material with extreme accuracy while the electron beam captures high resolution images of the exposed face.
Material Interaction
Precision milling reveals defects such as voids or delamination that are invisible from the top surface. During the cross sectional fib sem process, the ion beam can also deposit platinum or tungsten to protect the area of interest. This dual functionality makes it possible to create thin membranes for further high resolution transmission electron microscopy.
Failure Investigation
Root cause analysis of integrated circuits often relies on this method to identify short circuits or gate oxide breakdowns. Because cross sectional fib sem provides a direct view of the layer stack, it clarifies whether a defect originated during deposition or during subsequent thermal stress. Technicians use the resulting data to adjust manufacturing parameters on the production line.
Resolution Capability
Imaging at magnifications exceeding one hundred thousand times provides the detail necessary for modern node geometries. The tool is standard equipment in advanced quality control laboratories.
