JEDEC
PUBLICATION
Discontinuing Use of the Machine Model
for Device ESD Qualification
JEP172A
(Revision of JEP172, July 2014)
JULY 2015; Reaffirmed September 2020
JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
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JEDEC Publication No. 172A
-i-
DISCONTINUING USE OF THE MACHINE MODEL FOR
DEVICE ESD QUALIFICATION
Contents
1 Scope .................................................................................................................................................... 1
2 References ............................................................................................................................................ 1
3 Terms, Definitions, and Letter Symbols .............................................................................................. 2
4 Background .......................................................................................................................................... 3
5 MM vs. HBM and CDM ...................................................................................................................... 4
6 Metal Discharge versus CDM Discharge ............................................................................................. 6
7 Field Data Analysis .............................................................................................................................. 9
8 Standards Bodies and Positions on MM............................................................................................... 9
9 Conclusions ........................................................................................................................................ 10
10 Epilogue ............................................................................................................................................. 10
11 Common Goals ................................................................................................................................... 10
Annex A Differences between JEP172A and JEP172 ................................................................................ 10
