ISO International Standard

ISO 23812:2009 specifies a procedure for calibrating the depth scale in a shallow region, less than 50 nm deep, in SIMS depth profiling of silicon, using multiple delta-layer reference materials.

It is not applicable to the surface-transient region where the sputtering rate is not in the steady state.

It is applicable to single-crystalline silicon, polycrystalline silicon and amorphous silicon.