Cover story
after-sales needs can be challenging. Underestimating needs has a risk of prematurely terminating a product and losing sales. Overestimating needs ties up unnecessary capital in stock, while paying excessive storage costs. Additionally, if a redesign in the future is planned to limit the cost of the LTB, then the design, requalifi cation and the opportunity costs of using precious engineering resources all need to be factored in.
6. Purchase from 100% Authorised Sources There is a common misconception that, once the original manufacturer stops producing a component, unauthorised or grey-market sources are the only option. The risk-free option of an authorised after-market supplier should always be the fi rst choice. The risks of counterfeit and
poor-quality components from unauthorised sources are a significant risk to production yields and Mean Time Between Failure Rates (MTBR) in the field. Inferior or substandard testing by unauthorised third parties provides a false veneer of confidence that authenticity can be tested. This mimicry of testing is a visual, an x-ray, or a poor partial copy of the original manufacturer’s test processes. Full tri-temp testing is rarely offered, and the risk of commercial-grade components being re-marked as industrial, automotive, or military parts is always possible.
Unauthorised component risks include: Poor handling: resulting in ESD damage and the destruction of the device. Externally there will be no indication that a failure has occurred. Poor storage: excessive heat, cold or moisture during any part of its storage life. This can lead to external lead corrosion and failed solderability or moisture ingress into the plastic device and a catastrophic failure of the device,
as it is subject to refl ow temperatures. Fake documentation that mimics the
original specifi cation or lies about performed tests.
Recovered, re-marked or repackaged components masquerading as another product. There are also documented quality
problems related to foreign chemicals. Cleaning chemicals used to recover, wash and re-mark used components, slowly migrate into the products, shorting and corroding bond wires, and pads. Original Components Manufacturers (OCMs) do not provide guarantees for products purchased through unauthorised channels. Many explicitly prohibit the sale of components to unauthorised sources.
Authorised and Licensed Source Authorised sources, such as Rochester Electronics, offer risk-free sourcing and are the only truly- safe option for keeping customers’ production lines operational during shortages, allocation and obsolescence and are compliant with the SAE Aerospace Standard, AS6496. Simply stated, they are authorised by the OCM to provide traceable and guaranteed products with no quality or reliability testing required because the parts are sourced from the OCM. Rochester is 100% authorised by over 70 leading semiconductor manufacturers.
As a licensed semiconductor
manufacturer, Rochester offers on- going solutions using information and technology transferred directly to Rochester from the OCM. Rochester uses the original manufacturer’s die and fab processes, matching the original designs, assembly solutions and test protocols. All the resulting product is 100% certifi ed, licensed, guaranteed and sold with full approval under the original manufacturer’s part number. Rochester’s licensed manufacturing solutions are current date code, guaranteed to the original datasheet performance, and our team is ready to assist those customers navigating through strict regulatory requirements. Rochester has manufactured over 20,000 device types. With over 12 billion die in stock, Rochester has the capability to manufacture over 70,000 device types. Expect and plan for the
unexpected. It is now more vital than ever before to have partners who can support businesses during unforeseen or unplanned component discontinuations, completely risk-free whenever they occur. When facing critical component EOL and obsolescence for long- life applications, think Rochester Electronics – the experts in providing dependable and trusted “long-term” semiconductor lifecycle solutions. Find out more:
www.rocelec.com
www.electronicsworld.co.uk September 2023 07
https://www.rocelec.com?utm_medium=FrontCover&utm_source=ElectronicsWorld&utm_campaign=SEPT23ElectronicsWorldFrontCover&utm_content=Chip_FrontCover
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