There are several scenarios where integrated circuits (ICs) are mounted on printed circuit boards (PCBs) which might be charged-up and experience CDM-like events.
In ESD control programs, standard test methods for product qualification and periodic evaluation of wrist straps, garments, ionizers, worksurfaces, grounding, flooring, shoes, static dissipative planar materials, shielding bags, packaging, electrical soldering/desoldering hand tools, and flooring/footwear systems have been developed to ensure uniformity around the world.
China is one of the most attractive markets for automotive manufacturers in Europe and the United States. There are not many other markets that are growing as fast or that have more potential than China.
This article will define the test requirements, and discuss the methods used to obtain results. Limitations of the equipment used will also be discussed, so that lab personnel can be made aware and do their best to minimize tolerance errors.
Richard Nute examines how transformers behave when subjected to transient overvoltage, both magnetically and capacitively.
Sometimes a ferrite is used to remove ringing in some applications as in power electronics or digital circuits.