Context-Aware Pattern Matching for IC Layouts
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Solution Overview
Problem
Conventional methods for capturing reference patterns in integrated circuit design are inefficient and prone to human error, especially with the complexity of modern circuits, which hampers the identification of electrically sensitive elements and maintenance of desired electrical characteristics.
Innovation Solution
A context-aware pattern matching and processing method that involves analyzing circuit designs, extracting reference layout patterns, performing fuzzy pattern matching, and adding dummy fills or decomposing layouts for multiple-patterning, utilizing computer-executable instructions and multi-core processors to automate the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual inspection and measurement by hand are used to capture reference patterns, then pattern capture can be performed, but the process becomes unreliable and time-consuming due to circuit complexity
Solution Approach 1:
The patent replaces manual visual inspection and measurement with automated computer-based pattern capture. The system uses image processing algorithms to automatically extract reference patterns from layout designs, eliminating human error and improving reliability while maintaining ease of operation through automated workflow.
Solution Approach 2:
The system enables self-service pattern capture by automatically analyzing layout designs and extracting reference patterns without requiring designer intervention. The automated detection and extraction processes perform the pattern capture function independently, freeing designers from manual measurement tasks.
2Productivity
If manual pattern capture is used, then pattern identification can be performed, but it cannot keep up with the density and complexity of modern integrated circuits
Solution Approach 1:
The patent employs automated image processing and pattern recognition algorithms to rapidly analyze complex layout designs. The system processes circuit layouts at speeds impossible for manual inspection, enabling timely identification of patterns even in high-density modern circuits.
Solution Approach 2:
The system segments the complex circuit layout into manageable reference patterns through automated extraction. By breaking down the complex layout into discrete, identifiable pattern elements, the system can process and analyze each segment efficiently, maintaining productivity despite increasing overall circuit complexity.
3Extent of automation
If automated pattern matching is implemented, then human effort is reduced, but the system must handle complex geometries and maintain electrical characteristics
Solution Approach 1:
The patent employs parameter transformation and normalization to handle complex geometries. The system converts various geometric representations into standardized parameters, enabling automated pattern matching to accurately recognize and process complex shapes while maintaining electrical characteristic analysis.
Solution Approach 2:
The system implements a universal pattern matching framework that can handle multiple geometry types and electrical characteristics through a single integrated approach. The automated system performs multiple functions including pattern recognition, geometric analysis, and electrical characteristic maintenance, eliminating the need for separate specialized tools.
Data Source
AI summary
Aspects of the disclosed technology relate to techniques of context-aware pattern matching and processing. A circuit design is analyzed to identity circuit components of interest. Reference layout patterns that are associated with the circuit components of interest are extracted from a layout design based on the association of circuit components of the circuit design with geometric elements of the layout design. Pattern matching is performed to identify layout patterns that match the reference layout patterns. The identified layout patterns are then processed.