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ESD Protection

The electronic industry has placed a growing emphasis on reliability and quality assurance. ESD damage to Electrostatic Discharge Sensitive Devices (ESDS)  can be minimized by using ESD control measures.

 

  • Handle electrostatic discharge sensitive devices (ESDS) only in an ESD protected area (EPA)
  • Avoid electrostatic potential differences and electrostatic discharges
  • Use wrist straps, approved footwear and floor combination for personnel grounding
  • Wear properly fastened dissipative garments
  • Avoid electrostatic generating materials (normal PE, PVC, PS, etc.) inside an EPA
  • Do not expose ESDS to electrostatic fields > 100V / cm (10 kV/m) !
  • Use only approved ESD protective packaging materials
  • Awareness, personnel training, continuous monitoring are essential for maintaining a static control program

 

ESD protected area (sample configuration)

  1. Marking of an Electrostatic Protected Area (EPA)
  2. Personnel Grounding Tester for testing „wrist strap grounding system“ and “Person footwear system”
  3. Conductive or dissipative flooring system for Personnel Grounding over “Person footwear system”, grounding of ESD chairs, ESD transport carts etc.
  4. ESD shoes, heel grounder or toe grounder for „Personnel Grounding“
  5. Wrist strap system for grounding of Personnel in seating position
  6. ESD garments are shielding the electrostatic fields of the normal clothing
  7. ESD chairs minimize the chargeability of Personnel when standing up and additionally ground a person when seated
  8. ESD Workstation with dissipative bench top and dissipative shelves
  9. Galvanized steel shelving system will secure, when grounded properly, the dissipation of charges from conductive or dissipative transport systems and packaging
  10. Utility Cart with 4 conductive castors
  11. ESD packaging (conductive, dissipative and/or ESD shielding) is needed for a proper transport of electronic components and boards within and outside an EPA.
  12. Storage racks are used to store ESDS (Electrostatic Sensitive Devices)
  13. Ionisers can neutralise electrostatic charges on process necessary isolators
  14. ESD safe office equipment like ring binders and lighting magnifiers avoid the danger of electrostatic fields at workstations
  15. Test and measurement equipment is needed for verification of all the different ESD items within an EPA

 

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