This article is part ofTechXchange：筹码短缺和伪造
您将学到什么：
- Learn how medical-device manufacturers can mitigate the long-term risk of semiconductor component obsolescence.
- Learn how the current supply-chain disruptions in the market caused by the COVID-19 pandemic, and other factors can be managed by partnering with an authorized distributor or licensed semiconductor manufacturer to procure risk-free long-term supply.
- Learn how companies in the medical sector can plan ahead to alleviate the costs and risks of product redesign, requalification, and recertification.
生物医学设备对患者的风险进行分类：健康风险低/适中的I类设备；II类中级风险设备，例如Ultra/CT扫描仪；以及III/IV类设备，对于维持透析设备和起搏器等生命至关重要。
As the risk rises for patients, so do the certification costs. Original designs need to be maintained “as-is” for as long as possible. Semiconductor obsolescence presents a serious challenge to the support of biomedical products with long in-service lives and committed maintenance periods.
大型医学系统的概念对生命周期为20年，包括在内的支持，这并不少见。相比之下，半导体生命周期继续缩短，尤其是关键处理器/FPGA/内存组件的寿命。不可避免地需要桥接某种供应差距。
减轻长期风险
组成的过时可能是不受欢迎的，但通常是可以管理的。通常，最终用户通常会通过第三方进行最后一次购买的成品组件和半导体的安全长期存储，因为储存和处理IC需要特殊条件。尽管该解决方案将现金与长期组件和存储成本联系在一起，但至少保留了宝贵的设计和资格资源。如果未来需求与最后一次购买的供应完全匹配，那么这是一个完全适当的解决方案。
然而，随着19日19日大流行，对呼吸机的需求突然且不可预测。主线分销商的组件股很快就被消耗了，当半导体供应商本身无法增加容量时，很快就会出现关键的供应差距。
During this time, approving alternative IC sources, or a full product redesign, wasn’t possible given the re-qualification timescales. This is especially true where component obsolescence also impacted software performance.
To bridge the supply-chain gap, ventilator manufacturers looked to breathe life into discontinued systems to fulfill this critical need. By using previously approved ICs, such as older die iterations, or by resurrecting older system designs, production was able to continue.
授权分销商，例如罗切斯特电子已经成为停止sem的可信来源iconductors after end-of-life. Stock remains fully authorized, stored under AS6496 conditions, providing a risk-free source of supply.
此外，与许可的半导体制造商合作可以减轻组件终止的风险。有执照的制造商可以生产不再由原始组件制造商（OCM）提供的设备。
当组件停产时，剩余的测试的晶圆和模具，组装过程和原始测试IP将由OCM转移到许可的制造商中。这意味着先前停产的组件仍然可以新生产，并且符合原始规格100％。无需其他资格或软件更改。
在过去的12个月中，供应问题破坏了正常的交货确定性。与COVID相关的制造，运输中断甚至意外的自然灾害导致了链链的不确定性和延长交货时间。由于第三方Fab的优先事项发生了变化，因此中断通知已上升15％，并且该行业重新关注其Fab投资以解决低功率的电池主导景观。
It’s essential for companies in the medical sector to:
- 坚持从设计阶段开始的最大交叉引用数量。
- Plan component purchases further in advance.
- 考虑携带更多关键半导体库存。
- 定期监视交货时间和组件生命周期。
- Understand supply risks and prepare dual/multi-sourcing strategies to cover all eventualities.
- Partner with an authorized distributor and/or licensed manufacturer to help manage and maintain consistent longevity of supply.
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