F-1
OP27,
OP37 Equipment Manual
Release 05/99
ESD Guidelines
Virtually
all present-day modules incorporate highly integrated MOS devices
or components. For technological reasons, these electronic components are
very sensitive to overvoltages and consequently therefore to electrostatic dis
-
charge:
These devices are referred to in German as E
lektrostatisch G
efährdeten
B
auelemente/ B
augruppen: ”EGB”
The more frequent international name is:
”ESD” (E
lectrostatic S
ensitive D
evice)
The following symbol on plates on cabinets, mounting racks or packages
draws attention to the use of electrostatic sensitive devices and thus to the con
-
tact sensitivity of the assemblies concerned:
ESDs
may be destroyed by voltages and energies well below the perception
threshold of persons. V
oltages of this kind occur as soon as a device or an as
-
sembly is touched by a person who is not electrostatically dischar
ged . Devices
exposed to such overvoltages cannot immediately be detected as defective in
the majority of cases since faulty behavior may occur only after a long period
of operation.
Most plastics are capable of carrying high char
ges and it is therefore impera
-
tive that they be kept away from sensitive components.
When handling electrostatic sensitive devices, make sure that persons, work
-
places and packages are properly grounded.
What
does ESD
mean?
Precautions
against electro-
static discharge
F
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