Design Verification in VLSI is a crucial and time-consuming step in the product development process. It aims at ensuring that the product or system design adheres to specified standards and requirements. In fact, it occupies approximately 80% of the total time spent in the product development process. Many foundries emphasize testing and verification, which are necessary at every stage of VLSI design. Correcting mistakes at any phase often requires going back to the initial steps.
During VLSI design, two main types of verifications are commonly employed:
- Functional Verification and
- Static Timing Analysis
Functional verification examines whether the design or system behavior is functional, while Static Timing Analysis focuses on confirming timing requirements. These verification steps must be applied after every design stage, including translation, placement, and routing.
Also Read: Verification and validation in VLSI
How is verification carried out in VLSI?
Verification in VLSI comprises two phases:
- Verification: Predictive analysis to ensure the synthesized design will perform the specified I/O function when built.
- Test: Testing, a production phase to check for manufacturing flaws in the actual gadget created from the synthesized design.
The objective of Design Verification is to provide test findings that demonstrate the correspondence between design outputs (the real product) and design inputs (product requirements and specifications). This proof is typically obtained through test cases, test suites, inspections, or analysis, depending on the design being verified.
What are the approaches for design verification in VLSI?
There are various approaches to design verification, all aimed at reviewing and providing evidence that the output of a software product matches the input specifications. Throughout the Verilog development phase, design verification ensures alignment between the designed software product and the given specifications.
For those interested in delving deeper into design verification, enrolling in design verification courses offered by Chipedge, a leading VLSI training institute, is highly recommended. They provide both beginner and advanced VLSI Design Verification courses, taught by industry experts, and offer access to advanced Synopsys tools and 24/7 lab assistance.
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