WG 5 - TC 91/WG 5

IEC 60194-1:2021 covers terms and definitions closely related with TC91 technology.
This document, together with IEC 60194-2:2017, cancel and replace IEC 60194:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
1) exclusion of 32 general terms better served by other TCs;
2) exclusion of 47 terms no longer used by the electronic assembly industry;
3) inclusion of 14 new terms related with device embedded substrate technology;
4) inclusion of 113 synonymous terms;
5) removal of identification codes for terms and annexes.

IEC 60194-2:2017(E) covers terms and definitions related to printed board and electronic assembly technologies as well as other electronic technologies.
This first edition, together with IEC 60194-1, will cancel and replace IEC 60194:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 60194:2015:
a) exclusion of 32 general terms better served by other TCs;
b) exclusion of 47 terms no longer used by the electronics assembly industry;
c) inclusion of 13 new terms related with device embedded substrate technology;
d) removal of identification codes for terms as well as annexes.

IEC 60194:2015 defines the terminology used in the field of printed circuit boards and printed circuit board assembly products. The main changes with respect to the previous edition are the following:
- Some two hundred terms and definitions have been updated, where applicable, and
- another two hundred new terms and definitions have been added.