ANSI/ESD S20.20 Electrostatic Discharge Control Program Standard
Electrostatic discharge (ESD) and static electricity can cause numerous problems for organizations across several industries, particularly the electronics industry. Product quality and reliability, manufacturing costs and production can all be affected by ESD.
ANSI/ESD S20.20-1999, Electrostatic Discharge Control Program Standard, was created to help organizations design, develop, implement and maintain an Electrostatic Discharge (ESD) Control Program to protect ESD-sensitive electrical or electronic parts, assemblies and equipment from being damaged by Human Body Model (HBM) discharges greater than or equal to 100 volts.
Until recently the military has been the driving force behind the development of ESD standards in the United States. MIL-STD-1686 was the ESD Program Standard for the Department of Defense until 1992 when, as part of the Military Standardization Reform Act, it was targeted for replacement with a commercial standard.
S20.20 was created by the ESD Association (ESDA) and approved by the American National Standards Institute (ANSI) in 1998. The U.S. government accepts both S20.20 and MIL-STD-1686. Industry giants such as IBM, Lucent and Lockheed Martin have all adopted or require their subcontractors to implement S20.20.
There are three fundamental control principles included in this standard:
- All conductors in the environment, including personnel, must be bonded or electrically grounded
- Ionization systems must be used to neutralize charges on necessary nonconductors in the environment
- ESDS items being transported outside an Electrostatic Protected Area must be enclosed in static protective materials
The ANSI/ESD S20.20 Electrostatic Discharge Control Program Standard is divided into two main parts:
Administrative Requirements and Technical Requirements.
- ESD Control Program Plan
- Training Plan Requirement
- Compliance Verification Plan
- Grounding / Bonding Systems
- Personnel Grounding
- Protected Areas
Implementation guidelines are also provided after each requirement. TÜV SÜD America, a leading ISO 9001 Certification Body in North America, is one of just six Certification Bodies certified to issue S20.20 certificates.