Precautions
1-3 Precautions for Electrostatically Sensitive Devices (ESDs)
1. Some semiconductor (Osolid state�) devices5. Use only a grounded-tip soldering iron when
are easily damaged by static electricity. Suchsoldering or unsoldering ESDs.
components are called Electrostatically
Sensitive Devices (ESDs); examples include6. Use only an anti-static solder removal device.
integrated circuits and some field-effect Many solder removal devices are not rated as
transistors. The following techniques willOanti-static�; these can accumulate sufficient
reduce the occurrence of component damageelectrical charge to damage ESDs.
caused by static electricity.
7. Do not remove a replacement ESD from its
2. Immediately before handling any semiconprotective package until you are ready to
ductor components or assemblies, drain theinstall it. Most replacement ESDs are
electrostatic charge from your body by packaged with leads that are electrically
touching a known earth ground. Alternatively,shorted together by conductive foam,
wear a discharging wrist-strap device. (Bealuminum foil or other conductive materials.
sure to remove it prior to applying powerN
this is an electric shock precaution.)8. Immediately before removing the protective
material from the leads of a replacement ESD,
3. After removing an ESD-equipped assembly,touch the protective material to the chassis or
place it on a conductive surface such as circuit assembly into which the device will be
aluminum foil to prevent accumulation ofinstalled.
electrostatic charge.
9. Minimize body motions when handling
4. Do not use freon-propelled chemicals. Theseunpackaged replacement ESDs. Motions such
can generate electrical charges that damageas brushing clothes together, or lifting a foot
ESDs.from a carpeted floor can generate enough
static electricity to damage an ESD.
1-4Samsung Electronics |
ACEC
