Electrostatic Discharge (ESD)
A
sudden discharge of electrostatic electricity can destroy
static-sensitive devices or micro-circuitry. Proper packaging and
grounding techniques are necessary precautions to prevent damage.
Always take the following precautions:
ꢀ
Transport boards in static-safe containers such as boxes or bags.
ꢀ
Keep electrostatic sensitive parts in their containers until they arrive at
static-free stations.
ꢀ
ꢀ
Always be properly grounded when touching a sensitive board,
component, or assembly.
Store electrostatic-sensitive boards in protective packaging or on
conductive foam.
ꢁ Grounding Methods
Guard against electrostatic damage by following these steps:
1. Cover place with approved anti-static material. Provide a
wrist strap connected to a work surface and properly
grounded tools and equipment.
2. Use anti-static mats, heel straps, or air ionizes to give added
protection.
3. Handle electrostatic-sensitive components, boards, and
assemblies by the case or the PCB edge.
4. Avoid contact with pins, leads, or circuitry.
5. Turn off power and input signals before inserting and
removing connectors or test equipment.
6. Keep work area free of non-conductive materials such as
ordinary plastic assembly aids and Styrofoam.
7. Use field service tools, such as cutters, screwdrivers, and
vacuums that are conductive.
8. Always place drives and boards PCB-assembly-side down on
the foam.
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