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Navigating thermal challenges in advanced systems on chip

Thermal analysis highlights the importance of system-technology co-optimization

Summary

Continued transistor scaling leads to increased power densities, generating heat as a byproduct. This affects critical aspects of system on chip (SoC) performance, including processing speed, power efficiency, reliability, data throughput, and signal integrity.

This article summarizes insights from simulations based on four recent imec papers. The simulations quantify thermal challenges in advanced nodes and show why existing cooling options alone may no longer be sufficient. They also point to new design strategies, such as backside functionalization and the separation of logic layers optimising transistors for either density or drive current.

Addressing these thermal concerns effectively will require system-technology co-design, embedding thermal considerations into the earliest phases of chip and technology development.