CHANNELING CONTRAST MICROSCOPY - APPLICATION TO SEMICONDUCTOR STRUCTURES
JC MCCALLUM, CD MCKENZIE, MA LUCAS, KG ROSSITER, KT SHORT, JS WILLIAMS
APPLIED PHYSICS LETTERS | AMER INST PHYSICS | Published : 1983
The new technique is demonstrated for the imaging of semiconductor structures. The technique involves the use of a channeled 4He + microbeam, scanned across the surface to provide a channeling-contrast image of subsurface lattice disorder and atom location. The present arrangement provides a lateral resolution of ∼5 μm and an in-depth resolution of ∼30 Å. The technique is applied to the imaging of small, laser annealed regions on ion implanted silicon wafers.