We all have experienced static electricity. It is a natural occurrence that will help in our understanding of electrostatic discharge. So, in order to have a “discharge”, one must first have a “charge”, right? This charge occurs when two different materials rub against each other – one becomes positive charged and the other negatively. The charge will remain until it is removed (discharged) by way of electric current or electrical discharge. Simply put, electrostatic discharge (ESD) is the release of static electricity.