The counterfeiting of electronics components is a world-wide problem, and the threat today is even more evident than ever before. Any company, large or small, that manufactures assemblies using electronics components is equally susceptible to using counterfeit devices in their assemblies. In most cases, counterfeit components aren’t discovered until after the component has already been placed on a printed circuit board (PCB), usually during first article electrical test. At this point, the only recourse is to debug the circuit to determine the faulty component and rework each PCB already in production to replace the faulty component. As one might easily surmise, this is a rather costly process; world-wide, counterfeit components account for over $15B loss in sales annually!
Common tools used for counterfeit component analysis are x-ray, x-ray fluorescence (XRF), decapsulation, and the ORAFEC-09 detector. While decapsulation is a destructive method of removing the protective layers of a packaged component in order to view devices continued on next page Figure 1: A common example of counterfeiting, revealed using x-ray analysis. The image on the left shows a properly packaged die while the image on the right shows a package with a missing die. ACI Technologies, Inc. 1 International Plaza, Suite 600 Philadelphia, PA 19113 phone: 610.362.1200 web: www.aciusa.org Training Center phone: 610.362.1295 email: registrar@aciusa.org Helpline phone: 610.362.1320 email: helpline@aciusa.org and wire-bonds, all the other techniques are non-destructive means of counterfeit component analysis. XRF can be used for detecting lead in supposed lead-free components, as well as a component’s material composition. X-ray is best used for packaged components to provide high-resolution, high-contrast images of the component and its packaging. The ORAFEC-09 detector allows for extremely fast counterfeit analysis of components. The component simply plugs into the ORAFEC-09 unit which applies electrical signals to the pins. The recording of the electrical characteristics of those pins is called a PinPrint and can be used to compare a known genuine component to a suspect one. The voltage range, low and high peak voltage, source resistance, and the frequency can all be adjusted. This highly accurate means of counterfeit analysis could significantly save in cost and schedule.
