SAND83-1541C Seeing through the Latch-Up Window

The observation of radiation-induced latch-up windows has caused doubt in the validity of accepted latch-up screens. Models giving a plausible explanation of latch-up windows are presented which show that they are only a special case of latch-up as explained by many investigators and can be treated accordingly. Furthermore, they are eliminated when latch-up is prevented by either neutron irradiation of the devices or utilization of epitaxial substrates.