This part of IEC 60749 establishes a standard procedure for testing and classifying
semiconductor devices according to their susceptibility to damage or degradation by exposure
to a defined machine model (MM) electrostatic discharge (ESD). It may be used as an
alternative test method to the human body model ESD test method. The objective is to
provide reliable, repeatable ESD test results so that accurate classifications can be performed.
This test method is applicable to all semiconductor devices and is classified as destructive.
ESD testing of semiconductor devices is selected from this test method, the human body
model (HBM – see IEC 60749-26) or other test methods in the IEC 60749 series. The MM and
HBM test methods produce similar but not identical results. Unless otherwise specified, the
HBM test method is the one selected.