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Guru
United States - Member - New Member Technical Fields - Technical Writing - New Member Popular Science - Weaponology - Organizer Hobbies - Target Shooting - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Mar 2005
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EOL as We Know It

07/13/2007 8:57 AM

As the rate of change for performance and design of electronics gathers speed each year, manufacturing companies more frequently need to deal with end of life (EOL) concerns for key raw material components. But whether it's a microprocessor, or a hydraulic PIAB valve, parts are routinely redesigned, often leaving the OEM customer and/or equipment end user with a decision to redesign a product or line, or face large inventory purchases before the EOL deadline. This Cornell University professor discusses mathematical models that can help you judge the right inventory level, whether it's one part for one product, or one part relevant to many products.

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Guru
Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: El Lago, Texas, USA
Posts: 2639
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#1

Re: EOL as We Know It

07/13/2007 11:01 AM

This is especially a problem in the aerospace and defense electronics industry, where it's not uncommon to have to support a fielded design for 20 or 30 years - the Space Shuttle is a good example. Lifetime buys are pretty common, as well as re-spinning old ASIC designs for new foundry processes. Another issue is tools - the CAD tool that you used to do the original design in 1985 doesn't exist anymore, and the tool you're using today won't exist in 2027.

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