Q.VITEC Imagechecker Q.400PD, Руководство по оборудованию

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Introduction
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1.3 Electrostatic discharge (ESD)
A sudden discharge of electrostatic electricity can destroy static-sensitive devices or mi-
cro-circuitry. Proper packaging and grounding techniques are necessary prerequisites for
avoiding damage. Always take the following precautions:
 Transport printed circuit boards in static-safe containers such as boxes or bags.
 Keep electrostatic sensitive parts in their containers until they arrive at a static-free
station.
 Always be properly grounded when touching a sensitive printed-circuit board, compo-
nent, or assembly.

Store electrostatic-sensitive printed-circuit boards in protective packaging or on con-
ductive foam.
1.3.1 Grounding methods
Guard against electrostatic damage of the device by taking the following preventative steps:
 Cover workstations with approved anti-static material. Provide a wrist strap connected
to a work surface and properly grounded tools and equipment.
 Use anti-static mats, heel straps, or air ionizers for added protection.
 Handle electrostatic-sensitive components, PCBs, and assemblies by the case or the
edge of the board.
 Avoid contact with pins, leads, or circuitry.
 Turn off power and input signals before inserting and removing connectors or test
equipment.
 Keep the work area free of non-conductive materials such as ordinary plastic assembly
aids and Styrofoam.
 Use field service tools, such as cutters, screwdrivers, and vacuum cleaners that are
conductive.
 Always lay drives and PCBs with the component-side down on the foam.