Integrated Circuit Alternative Selection for Yield and Reliability
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Solution Overview
Problem
Integrated circuit designs face challenges in accurately predicting the best solution for reliability or yield before hardware production, as manufacturing variations are not accounted for in the design phase, leading to potential defects and suboptimal performance.
Innovation Solution
Implementing a method that generates integrated circuits with multiple component sets optimized for different metrics, allowing post-manufacturing selection based on testing results to balance yield and reliability, using internal and external components as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single set of components is selected to optimize one metric, then that metric is improved, but other metrics may deteriorate
Solution Approach 1:
The patent implements dynamic selection between multiple component sets based on actual device performance characteristics. The system includes a selection mechanism that chooses different component configurations (e.g., internal vs external reference voltage circuits) depending on measured parameters like yield and reliability, allowing the circuit to adapt its configuration rather than being fixed in the design phase
Solution Approach 2:
The patent changes the configuration parameters of the integrated circuit by selecting different component sets based on measured performance parameters. The selection component switches between component sets (such as internal reference voltage circuit vs external reference voltage circuit) based on measured yield and reliability characteristics, effectively changing the circuit's operational parameters to optimize performance
2Manufacturing precision
If design decisions are made during the design phase without hardware feedback, then the design process is faster, but manufacturing variations are not accounted for leading to potential defects
Solution Approach 1:
The patent prepares multiple component sets and configuration options in advance during the design phase, but defers the final selection decision to the manufacturing/testing phase. This preliminary preparation of alternative configurations allows the system to respond to actual manufacturing variations without requiring complete redesign, balancing design speed with manufacturing precision
Solution Approach 2:
The patent introduces a feedback mechanism where measured performance characteristics (yield, reliability, temperature, power, timing) from hardware testing are fed back to the selection component. This feedback loop allows the system to adjust its configuration based on actual device performance and manufacturing variations, improving manufacturing precision while maintaining efficient design processes
Data Source
AI summary
Alternative design selection in integrated circuit generation includes generating an integrated circuit design including a first set of components configured to optimize a first metric, a second set of components configured to optimize a second metric different than the first metric, and a first selection component configured to select between use of the first set of components or the second set of components. An integrated circuit is caused to be generated based on the integrated circuit design.