Design Verification in VLSI is the most significant step in the product development process. It aims to confirm that the product or system design complies with the standards and requirements of the system. Design verification and testing take almost 80% of the overall time spent in the product development process. Many foundries focus on doing testing and verification. Verification is required at every stage of VLSI design. One must return to the initial steps to fix a mistake in any phase.
When creating a VLSI design, two types of verifications are often used:
- Functional verification, and
- Static Timing Analysis
The functional verification stage examines whether the design or system behavior is functional. Static timing analysis (STA), on the other hand, focuses on confirming the timing requirements. Every step of the design, including translation, placement, and routing, must be followed by the above verification steps.
Also Read: Verification and validation in VLSI
How is verification carried out in VLSI?
Verification in VLSI is done in two phases:
Verification: Predictive analysis is done to make sure the synthesized design will carry out the specified I/O function when built.
Test: A production phase that verifies there are no manufacturing flaws in the actual gadget that was created from the synthesized design.
Design Verification provides test findings that provide evidence that the design outputs (a real product) correspond to the design inputs (product requirements and design specifications). To give the necessary proof, a test case or test suite may be run, an inspection may be made, or an analysis may be performed, depending on the design being verified.
What are the approaches for design verification in VLSI?
By reviewing and providing proof, design verification is a technique for ensuring that the output of a software product fits the input specifications. During the phase of the development using Verilog, the design verification process aims to confirm that the designed software product matches the specifications.
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