This case study explains how Altum RF strengthened verification of complex GaAs and GaN MMIC layouts using an enhanced WIN Semiconductors LVS rule deck embedded in Keysight ADS. Hand-crafted transistors, custom structures, ESD diodes, dense ground vias, missing connections, shorts, and parameter mismatches were difficult to verify through basic visual checks and required hours or days of manual review by multiple engineers. Desktop LVS automatically compares layouts with schematics, visually highlights errors, and remains within the existing ADS workflow. Designers can now complete checks in minutes, catch costly defects before foundry handoff, reduce manual QA, pursue more compact layouts confidently, and avoid potential respins exceeding $100,000 and months of delay.

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