What is ESD control and why is it important?

Electrostatic Discharge (ESD) control refers to the measures used to prevent damage to ESD-sensitive electronic components caused by sudden electrostatic discharge. Effective ESD control protects product reliability, reduces manufacturing defects, and ensures compliance with standards such as BS EN 61340-5-1. Without appropriate controls, static discharge can cause both immediate failures and latent defects in electronic assemblies.

What is an Electrostatic Protected Area (EPA)?

An Electrostatic Protected Area (EPA) is a designated workspace where ESD control measures are implemented to safely handle ESD-sensitive devices. EPAs typically include grounded workstations, static-dissipative surfaces, personnel grounding systems, ionisation equipment, and controlled handling procedures to minimise electrostatic risk.

What is BS EN 61340-5-1?

BS EN 61340-5-1 is the primary international standard that defines the requirements for ESD control programs designed to protect electronic devices from electrostatic damage. The standard outlines requirements for grounding, personnel protection, EPA design, packaging, product qualification, and ongoing compliance verification.

How often should an ESD audit be performed?

The frequency of ESD audits depends on organisational risk and quality system requirements. Many companies perform annual ESD audits, with additional verification following facility changes, equipment upgrades, or updates to standards such as BS EN 61340-5-1.

What is an ESD Control Program Plan?

An ESD Control Program Plan is the documented framework describing how an organisation manages electrostatic risk. It defines procedures, responsibilities, handling methods, compliance verification processes, and the technical requirements necessary to protect ESD-sensitive devices.

What is ESD compliance verification testing?

ESD compliance verification testing involves periodic testing of ESD control elements such as worksurfaces, floors, wrist straps, ionisers, and grounding systems to ensure they remain within the resistance and performance limits defined by ESD standards. It can be done in house or a third party such as Teknis ltd can be contracted to complete testing for you.

What are ESD-sensitive devices (ESDS)?

ESD-sensitive devices (ESDS) are electronic components that can be damaged by electrostatic discharge. Examples include integrated circuits, semiconductor devices, and precision electronic assemblies. Even low levels of electrostatic discharge can degrade these components.

Do all electronics manufacturing environments require ESD
control?

Most environments involved in electronics manufacturing, assembly, repair, testing, or handling of semiconductors require some form of ESD control. Industries such as aerospace, defence, automotive electronics, medical devices, and telecommunications commonly implement formal ESD control programs.

What is the purpose of ESD grounding?

Grounding ensures that electrostatic charge is safely dissipated to earth, preventing charge accumulation on people, tools, furniture, or equipment that could otherwise discharge into sensitive electronics.

What role does ionisation play in ESD control?

Ionisation systems neutralise electrostatic charge on insulating materials and isolated conductors that cannot be directly grounded. They are commonly used in areas where plastics, packaging materials, or process equipment can accumulate static charge.