Design Verification Query Agent for Chip Development

Semiconductor GenAI case study for accelerated verification analysis across fragmented engineering data.

About Customer

The customer is a chip development organization running large-scale design verification cycles with data distributed across SQL metrics, NoSQL coverage logs, and defect-tracking APIs. Teams needed faster cross-system analytics for module-level decisions.

Verification leads wanted one conversational interface that could query multiple systems securely and return consolidated answers in minutes.

Customer Verification Environment Cross-system answers require manual stitching before a confident closure decision Fragmented Verification Sources SQL Metrics (Coverage and Trends) NoSQL Verification Logs Defect Tracker API Data lives in separate systems and formats Verification Lead Workflow Need one module-risk answer fast Manual compare + reconcile across sources Operational Impact Delayed sign-off decisions Longer debug and closure loop Higher tape-out schedule risk

Problem Statement

Engineers and managers needed real-time holistic visibility, but verification data remained fragmented across incompatible stores. Critical questions required manual stitching of multiple reports before action could be taken.

A representative customer story came from late-stage verification closure reviews where leads had to reconcile coverage gaps, defect trends, and failing log clusters before sign-off. Each data source told part of the story, but assembling a complete answer required multiple tools and hand-built correlations, delaying go/no-go decisions at the most schedule-sensitive phase.

This slowed debug loops, delayed closure decisions, and increased tape-out risk when turnaround time mattered most.

  • Days-long manual correlation across SQL, NoSQL logs, and defect APIs.
  • Limited ability to answer cross-domain verification questions quickly.
  • Higher risk of schedule slip due to analysis bottlenecks.

Solution Architecture

Zettabolt deployed a Multi-Agent Verification Analytics System where an LLM + RAG (Retrieval-Augmented Generation) layer translates plain-English questions into queries that span multiple, very different systems - RTL (Register-Transfer Level chip-design) metrics in SQL, coverage reports in log databases, and bug reports in a defect-tracking API. A custom Orchestration Agent breaks the question down and dispatches it to specialist Metrics, Log, and Bug agents that securely access each system through ZettaLens connectors, returning a single consolidated answer 40X faster than manual correlation and cutting verification cycle time up to 40%. Here is how we integrated the pipeline:

Multi-Agent Design Verification Analytics RTL MetricsSQL Coverage LogsNoSQLBug API Coverage for buggy modules?NL → FederatedQuery PlanLLM + RAG MMetrics LLog BBugOrchestration AgentUnified Answer 40X fasterdecisions

Implementation Highlights

  • Built a multi-agent verification system using LLM + RAG for federated natural-language analytics across heterogeneous data stores.
  • Added orchestration to route queries to specialized metrics, log, and bug analysis agents with context sharing.
  • Used secure ZettaLens wrappers to query governed systems without compromising controls.
  • Standardized final responses with cross-source evidence so teams could act without manual reconciliation.

Implementation context: The rollout focused on top verification questions that consumed the most manual effort. By converting these into reusable agent patterns, teams quickly moved from fragmented report navigation to consolidated, decision-ready responses with much lower turnaround time.

LLM RAG Multi-Agent Federated Queries ZettaLens Wrappers

Business Impact

Verification leaders gained faster closure visibility and reduced manual report stitching, enabling earlier intervention on critical module risks.

40X faster analysis and decision-making
99%+ reduction in query time
Up to 40% reduction in verification cycle time
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