In semiconductor design, writing RTL is only part of the challenge. Engineers must also verify that the design behaves correctly across a wide range of operating conditions.
Verification can consume a substantial share of the chip development cycle, with the effort varying according to design complexity, project requirements, and the reuse of existing intellectual property (IP).
Why does verification require so much effort?
Modern Systems-on-Chip (SoCs) integrate processors, memory controllers, communication interfaces, and specialised accelerators. Engineers must verify not only individual functions but also interactions between components, corner cases, and unexpected operating scenarios.
The process involves developing testbenches, running simulations, analysing failures, debugging defects, and closing functional and code coverage gaps. Design changes can trigger repeated regression testing, adding to the overall effort.
Missing a critical bug can lead to costly silicon re-spins, delayed product launches, and additional engineering work.
To improve efficiency, teams use constrained-random verification, assertions, formal verification, and automation. Starting verification early and reusing proven verification components can also reduce late-stage risks.
Verification is not simply about finding bugs—it is about building confidence in the silicon before it reaches manufacturing.
