Articles

Desco made our first crude version of a wrist strap for an aerospace customer in Southern California. The wrist strap was basically a metal watchband connected to a wire with a ring terminal on it. There were no industry accepted standards, qualification procedures, or certification processes at that time. ESD susceptible components used in electronics…

Read more State-of-the-Art ESD Control

Posted by Carl Newberg, Ted Dangelmayer and Terry Welsher Current, not voltage, causes ESD damage to electronic devices, circuit boards and assemblies Common items used in electrostatic discharge (ESD) protected work areas (EPA) are plastic totes, trays and boxes. In most cases, these are viewed as commodity items with very little thought or engineering put…

Read more Are Your ESD Tote Boxes and Containers Too Conductive?

Think Of Static Electricity as Germs and Contamination! Daily life has other examples of hidden enemies where careful procedures must be followed to regularly obtain positive results. One example is sterilization, which combats germs and contamination in hospitals. Damage caused by invisible and undetectable events can be understood by comparing ESD damage to medical contamination of the human…

Read more Operator’s Part in ESD Control

At this point in our blog series concerning ESD Awareness, we should  consider some basic physics: Ohm’s law is an extremely useful equation in the field of electrical/electronic engineering because it describes how voltage, current, and resistance are interrelated. Ohm’s law states that, in an electrical circuit, the current passing through a conductor between two…

Read more What is OHM’s Law?

There are three ESD Awareness Symbols defined in ANSI/ESD S8.1: ESD Susceptibility Symbol ESD Protective Symbol ESD Common Point Ground To view information about each symbol please click the link or image above. Desco provides downloadable symbol artwork at no charge: ESD Susceptibility Symbol ESD Protective Symbol ESD Common Point Ground Desco utilizes the proper […]

ESD damage is not always visible to the naked eye. ESD damage to electronic components can be: • Catastrophic Failures • Latent Defects Catastrophic failure causes a failure in an ESD sensitive item that is permanent. The ESD event may have caused a metal melt, junction breakdown or oxide failure. Normal inspection is able to detect a catastrophic…

Read more Types  Of  ESD Device Damage

ElectroStatic charges and ElectroStatic discharges are different. All material can tribocharge (generate ElectroStatic charges). This is static electricity which is an electrical charge at rest. When an electrical charge is not at rest, but discharges (i.e. ESD), problems can occur. All matter is constructed from atoms which have negatively charged electrons circling the atom’s nucleus…

Read more ElectroStatic Charges vs Electrostatic Discharges (ESD)