UNE-EN 60191-4:2001 Mechanical standardization of semiconductor devices -- Part 4: Coding system and classification into forms of package outlines for semiconductor device packages.
2018UNE-EN 60191-4:2014/A1:2018 Mechanical standardization of semiconductor devices - Part 4: Coding system and classification into forms of package outlines for semiconductor device packages (Endorsed by Asociación Española de Normalización in June of 2018.)
2014UNE-EN 60191-4:2014 Mechanical standardization of semiconductor devices - Part 4: Coding system and classification into forms of package outlines for semiconductor device packages (Endorsed by AENOR in May of 2014.)
2001UNE-EN 60191-4:2001 Mechanical standardization of semiconductor devices -- Part 4: Coding system and classification into forms of package outlines for semiconductor device packages.