Integrated Circuit Layout Patterns for High-Density Rule Compliance
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Solution Overview
Problem
The miniaturization of integrated circuits poses challenges in design and manufacturing due to stricter specifications and reliability issues, particularly in generating layout designs that meet design rules to ensure consistent manufacturing and high yield.
Innovation Solution
A method is developed to generate integrated circuit layout designs that satisfy specific design rules, including spacing and pitch requirements, to improve manufacturing yield, gate density, and reliability by using a processor to create gate, via, and cut feature layout patterns that adhere to established design rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If integrated circuits are miniaturized to achieve smaller devices with more functionality, then device size and power consumption are improved, but manufacturing precision and reliability deteriorate due to stricter design specifications
Solution Approach 1:
The patent applies preliminary action by performing design rule checks and layout optimizations before the manufacturing process begins. The system generates layout designs that pre-comply with manufacturing specifications, including spacing rules, pitch rules, and other design constraints, thereby preventing manufacturing defects before they occur.
Solution Approach 2:
The patent implements feedback mechanisms through automated design rule checking systems that continuously verify layout designs against manufacturing specifications. The system provides feedback on violations and iteratively adjusts the layout to ensure compliance, improving manufacturing precision through continuous verification and correction.
2Productivity
If integrated circuits are miniaturized to achieve higher gate density, then functionality is improved, but design complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies segmentation by dividing the complex layout design process into manageable components: generating individual layout elements, applying spacing rules, applying pitch rules, and performing design rule checks. This modular approach reduces design complexity while enabling high gate density through systematic optimization of each segment.
Solution Approach 2:
The patent utilizes parameter changes by systematically adjusting layout parameters such as spacing distances, pitch dimensions, and feature sizes to maximize gate density while maintaining compliance with design rules. The optimization process modifies these parameters to achieve the highest possible transistor density within manufacturing constraints.
3Productivity
If layout designs are optimized for higher gate density, then productivity is improved, but manufacturing yield may deteriorate if design rules are not strictly followed
Solution Approach 1:
The patent performs preliminary design rule verification to ensure that high-density layouts comply with manufacturing specifications before production. By pre-checking spacing rules, pitch rules, and other constraints, the system prevents yield-loss defects while maintaining optimized gate density.
Solution Approach 2:
The system implements continuous feedback through automated design rule checking that monitors layout compliance throughout the design optimization process. This feedback mechanism ensures that productivity improvements from higher gate density do not compromise manufacturing yield by catching and correcting violations before manufacturing.
Data Source
AI summary
A system for manufacturing an integrated circuit includes a processor coupled to a non-transitory computer readable medium configured to store executable instructions. The processor is configured to execute the instructions for generating a layout design of the integrated circuit that has a set of design rules. The generating of the layout design includes generating a set of gate layout patterns corresponding to fabricating a set of gate structures of the integrated circuit, generating a cut feature layout pattern corresponding to a cut region of a first gate of the set of gate structures of the integrated circuit, generating a first conductive feature layout pattern corresponding to fabricating a first conductive structure of the integrated circuit, and generating a first via layout pattern corresponding to a first via. The cut feature layout pattern overlaps a first gate layout pattern of the set of gate layout patterns.