ANALOG OBSOLESCENCE, MARKET DYNAMICS
Historically, digital logic components have been more widely used in circuit design as compared to analog devices. This is still true today, but Analog microcircuit obsolescence is a concern nonetheless. The Defense Logistics Agency (DLA) reports that for QML components that have been identified as DMSMS, a significant portion are classified as analog. To address this industrial base shortfall, meet weapon-system requirements, and satisfy DLA’s wide-ranging needs, a cost-effective, reliable source for analog/linear microcircuits will be implemented by the Emulation program.
THE “STAYING POWER” OF ANALOG TECHNOLOGY HAS CONTRIBUTED TO THE LACK OF ANALOG OBSOLESCENCE SOLUTIONS.
Digital logic components have been more widely used in circuit design as compared to analog devices, which is evident by the overall semiconductor industry revenues ($91B for Logic vs. $48B for Analog in 2016). Diminishing manufacturing resources and material shortages (DMSMS) for microcircuit has also followed this trend. Logic components are usually more susceptible to obsolescence due to the selected fabrication process used. Analog devices in the eighties (and many still today) typically used bipolar processes to achieve precision, high current drive capability, and high-speed operation, etc., while digital devices targeted CMOS processes for low power and cost. Bipolar transistors are not subject to the same shrinking (Moore’s Law) that CMOS transistors enjoy so the density of bipolar transistor circuits remained relatively constant with time. Thus, analog designs had more “staying power”, or longer life cycles. Due to these issues industry solutions for microcircuit obsolescence have primarily focused on digital parts rather than analog.
CAN WE HELP YOU?
As designs became more mixed signal in nature, analog components became increasingly difficult to source. The Emulation programs are working to bring this new capability into our repertoire. Contact us to learn more about how we can help you with your analog microcircuit obsolescence issues.