Electrostatic Discharge (ESD) Module Practice Test

The main concept is that static damage to ESDS items happens when charges build up on surfaces and then discharge unpredictably. Flooring plays a big role because it affects how charges are generated and whether they can flow away to ground. Nonconductive floors tend to hold and transfer triboelectric charges rather than drain them away, so they can create the same risk of damaging discharges as carpet does. Ceramic tile is typically an insulating surface, so it can accumulate static charge just like carpet when people walk on it or when items are moved across it. Since it doesn’t readily provide a path to ground, that charge can discharge into nearby ESDS items, potentially causing damage. That’s why tile is considered to have the same damaging SAMPLEpotential as carpet in this context. In contrast, floors designed to be dissipative or conductive provide a path for charges to flow to ground, greatly reducing ESD risk.