Relative humidity (RH) directly affects the ability of a surface to store an electrostatic charge. As RH increase, the time a surface will hold a charge will decrease and the dissipation rate will increase. As the RH increases, so does the natural conductivity of the air, but even at 100% RH the increase in the…
The ESD Association provided a recent article for Printed Circuit Design and FAB called titled “The Simple Solution”. To read the entire article, click HERE. The article is a good discussion regarding the importance of measuring in ESD Control situations. Any good ESD Control Plan requires different measuring devices to determine the need for and effectiveness…
Regular cleaning of an ionizer’s emitter pins is necessary to stay within the ionizer’s required limits of ANSI/ESD S20.20. If the ionizer has a filter, it should be cleaned at this time as well. One S20.20 required limit for ionizers is Offset Voltage of less than + or – 50 volts (this is often referred…