Integrated circuit layout design method and integrated circuit

By designing a symmetrical functional equivalent component structure and using a no-hook region, the problem of inflexible signal pin position adjustment in integrated circuits was solved, achieving efficient module layout and optimized circuit performance.

CN121766252BActive Publication Date: 2026-07-21SUNMMIO SCIENCE & TECHNOLOGY (BEIJING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUNMMIO SCIENCE & TECHNOLOGY (BEIJING) CO LTD
Filing Date
2025-12-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The standard cells in existing integrated circuits have a unidirectional structure, which means that modules can only be translated during layout, and the position of signal pins cannot be flexibly adjusted. This increases the complexity and workload of physical design and affects design efficiency.

Method used

Design functionally equivalent component structures to make the signal pin layout symmetrical, and set a keep-out zone on one side to allow component replacement rather than flipping, realize flexible interchange of signal pin positions, and ensure seamless connection and wiring consistency after replacement through the keep-out zone.

Benefits of technology

It improves the layout flexibility of integrated circuit modules, reduces the workload and iteration cost of physical design, shortens the design cycle, optimizes signal routing, and improves circuit performance and overall design efficiency.

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Abstract

A method for designing integrated circuit layout and an integrated circuit, the method comprising: designing a circuit structure of at least one first component and a circuit structure of at least one second component functionally equivalent to the first component, wherein the circuit structures of the first component and the second component each comprise at least two signal pins, and the layout of the at least two signal pins in the circuit structure of the first component is symmetrical to the layout of the at least two signal pins in the circuit structure of the second component; designing a forbidden layout area for prohibiting signal line routing on at least one side of each signal pin in the circuit structures of the first component and the second component, wherein the forbidden layout area is adjacent to or partially covers the position of the corresponding signal pin in the first component and / or the second component; and selecting at least one first component and / or second component according to the direction of the signal line to form one or more modules of the integrated circuit.
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