When counterfeit electronic elements 1st started surfacing it was ordinarily effortless to spot them. The markings on the chip may be blatantly incorrect for instance the wrong logo for the enterprise who supposedly created the item or maybe a marking which would merely rub off. As the counterfeiters have gained sophistication, their fake components are tougher to spot. Even checking the markings on the chip (Blacktop Markings) now needs rigorous testing procedures.
Counterfeit parts have grow to be a considerable concern inside the electronic component business. At times these counterfeits are clones - attempts to copy the genuine components. In other instances, the counterfeiters will re-mark a part. The counterfeiter will take a component made for a distinct objective and alter the markings on part so it'll seem to be an additional portion.
Why does this matter? Electronic components are built to precise standards to perform extremely precise jobs. These elements then undergo rigorous testing to produce sure they may be going to carry out as anticipate below all circumstances. You'd not create an airplane with untested screws that nearly fit. It truly is basically potentially more damaging to produce use of electronic components that happen to be practically proper.
The US military has developed detailed specifications for ways to test components. These specifications have turn out to be the enterprise common, applied to test every single military and non-military parts. The military standards are critical in determining the authenticity of components. Respected electronic component testing firms adhere to those published specifications. Nevertheless, you'll learn variations and proprietary approaches of approaches to implement those specs and maintain premium quality manage for the duration of testing.
(Note: The following test is produced use of as general instance for the purposes of this write-up. Some distinct methods and proprietary info and details has been omitted.)
Marking Permanency (Resistance to Solvents) Test:
The purpose of a Marking Permanency test could be to verify that the components when subjected to solvents will sustain their appropriate markings. Counterfeit components generally have new markings which are not permanent; they’ll dissolve when the solvents are appropriately applied. Also, the solvents will reveal evidence of previous markings which have been sanded off or otherwise replaced by the false markings.
Many Military Regular procedures are applied which incorporate processes of operating with lots of chemicals mixed appropriately and in detail is in accordance working with the specifications. These chemical compounds consist of Aliphatic alcohol, mineral spirits, ethyl-benzene, organic solvents, de-ionized water, propylene glycol monomethyl either, or monoethanloamine.
When effectively mixed the components are submerged inside a 3 phase procedure and analyzed in accordance with MIL-HBK-130 to uncover evidence of harm to the device and any specified markings which can be missing in complete or in element, faded, smeared, blurred, or shifted (dislodged) towards the extent that they can't be readily identified from a distance of a minimum of 15.0cm (6 inches) with regular room lighting and devoid of getting the aid of magnification or with a viewer getting a magnification no higher than 3X. In some conditions, a strategic acetone wash might be applied to reveal sanding marks and facets of preceding markings.
Blacktop marking is just a single test within a multi-step technique applied to find out counterfeit electronic elements. Other tests consist of closely checking the physical dimensions together with the packaging as well because the performance with the chips. Counterfeit electronic components are on the rise in each military and civilian merchandise. As the counterfeiting gets additional sophisticated, testing houses continue to make finely tuned procedures to separate the fake goods from the genuine parts.
Joseph Federico is VP and director of operations for NJMET, based in Clifton, NJ. NJMET gives specialist electronic component testing towards the Commercial, Military, Aerospace, Industrial and Automotive fields worldwide. Its state in the art Mission Imposter® Counterfeit Detection Approach identifies counterfeit or cloned products.