Historical
IEC 60191-4 Ed. 2.2 b:2002
Mechanical standardization of semiconductor devices - Part 4: Coding system and classification into forms of package outlines for semiconductor device packages
Describes a method for the designation and the classification into forms of package outlines for semiconductor devices. Provides a systematic method for generating universal descriptive designators for semiconductor packages.
International Electrotechnical Commission [iec]
