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Electrostatic Discharge Control (ESD) Practices
B.3 Prime Static Accumulators
Table 60 provides some background information on static-accumulating materials.
Work Surfaces
Floors
Clothes
Chairs
Packing and
handling
Assembly,
cleaning, and
repair areas
B.4 Handling Printed Circuit Boards
ESD damage to unprotected sensitive devices may occur at any time. ESD events can occur far below the
threshold of human sensitivity. Follow this sequence when it becomes necessary to install or remove a circuit
board:
1.
After you are connected to the grounded wrist strap, remove the circuit board from the frame and place it
on a static-controlled surface (grounded floor or table mat).
2.
Remove the replacement circuit board from the static-shielding bag or clamshell and insert it into the
equipment.
3.
Place the original board into the shielding bag or clamshell and seal it with a label.
4.
Do not put repair tags inside the shielding bag or clamshell.
5.
Disconnect the wrist strap.
EuroPak-15ab Receiver User Manual Rev 1
Table 60: Static-Accumulating Materials
•
formica (waxed or highly resistive)
•
finished wood
•
synthetic mats
•
writing materials, note pads, and so on
•
wax-finished
•
vinyl
•
common cleanroom smocks
•
personal garments (all textiles)
•
non-conductive shoes
•
finished wood
•
vinyl
•
fiberglass
•
common polyethylene bags, wraps, envelopes, and bubble pack
•
pack foam
•
common plastic trays and tote boxes
•
spray cleaners
•
common solder sucker
•
common soldering irons
•
common solvent brushes (synthetic bristles)
•
cleaning, drying and temperature chambers
Appendix B
127
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