Standard · EDA Tools & Flows
Tech LEF (Technology Library Exchange Format)
The technology portion of LEF, defining routing layers, their pitches, widths, spacing rules, via definitions, cell sites and units. It supplies the layer stack and simplified design rules that a router needs.
- Also known as
- Technology LEF, .tlef
- Type
- Standard
- Domain
- EDA Tools & Flows, Design data formats
Notes
Because tech LEF rules are simplified, router-clean designs can still fail signoff DRC against the full foundry deck.
Related terms
Part of the EDA Tools & Flows glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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