FIB can be used to make site-specific TEM specimens with sub-micron positional accuracy, using either:

the conventional "H-bar" method - creating large thin areas and iterative thinning, or;

the "lift-out" technique - which requires no pre-thinning and as a result has a faster turn-around time.

Both techniques can make TEM membranes thin enough for:

EDX analysis;

EELS analysis;

diffraction patterns;

lattice imaging.

We work with silicon, compound semiconductors and many other material systems.

We can also leave the specimen slightly thicker for good absorption contrast (i.e. visually differentiate oxide and nitride layers) or dislocation observation!