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What are the basic methods for controlling ESD?

Control of static electricity can be summed up in the following five points.

(1) Ground the worker.

→Wear an antistatic wrist strap.

(2) Ground the surface of the work bench and ground the tools and other apparatus.

→Lay the ESD protective mat on the work bench to ground it.

(3) Remove from the area all materials (static producing materials) which tend to cause static electricity problems.

→Use the ESD protective tools.

(4) Use ionization or other charge mitigating techniques to neutralize the charge if removing the static charge by grounding is not possible.

→Use the static eliminator (ionizer).

(5) Place sensitive items in appropriate protective packaging when transporting or moving to storage from areas in which the above three points are being enforced.

→Store in antistatic bags.

The above represent the basic methods of preventing damage due to ESD.

You can download detailed engineering documents from the Document Portal.

What is ESD?

ESD (electrostatic discharge) is defined as the transfer of electric charge, which takes place when two objects which have been charged to different electric potentials are brought in contact with one another or when two objects which have different electric potentials due to static induction are brought in contact with one another.

ESD can cause product defects as well as equipment failures which result in an unforeseen accident. The most common example of damage caused by electrostatic discharge is when a charged worker or tool touches a grounded device which has a low resistance to static electricity.