Chip Output Calibration Using E-Fuse Blowing Patterns
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Solution Overview
Problem
In chip manufacturing, deviations in process conditions and chip production batches lead to significant discrepancies between actual and expected chip output characteristics, complicating quality control and consistency in chip shipment.
Innovation Solution
A method and device that detect the state of E-fuses in chips, determine a targeted adjustment solution based on output performance, and apply blowing treatment to specific E-fuses to adjust output characteristics, ensuring consistency and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If chip manufacturing processes are used, then chip production efficiency is improved, but output characteristics deviate significantly from expected values due to process deviations and circuit mismatching
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple adjustment solutions (first, second, and third adjustment solutions with different E-fuse blowing patterns) into the chip design before manufacturing. These pre-prepared adjustment schemes allow rapid selection and application during testing without requiring complex real-time manufacturing adjustments, thus maintaining high production efficiency while enabling precise output characteristic control.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying E-fuse blowing configurations across different adjustment solutions. Each adjustment solution corresponds to different E-fuse blowing patterns that modify circuit parameters to compensate for process deviations and circuit mismatching, thereby adjusting output characteristics to match expected values while maintaining consistent manufacturing processes.
2Manufacturing precision
If multiple adjustment solutions are prepared for different chip batches, then output characteristics consistency is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the adjustment mechanism into discrete, independently controllable E-fuse elements organized in specific patterns. Each adjustment solution consists of specific E-fuse blowing configurations that can be independently selected and applied. This segmented approach allows complex output characteristic adjustments to be achieved through simple, modular E-fuse control patterns, reducing overall system complexity while maintaining precision.
3Manufacturing precision
If E-fuse blowing treatment is applied to adjust output characteristics, then manufacturing precision is improved, but additional processing time is required
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple adjustment solutions (first, second, and third adjustment solutions with different E-fuse blowing patterns) into the chip design before manufacturing. These pre-prepared adjustment schemes allow rapid selection and application during testing without requiring complex real-time manufacturing adjustments, thus maintaining high production efficiency while enabling precise output characteristic control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures the consistency and quality of chip output characteristics by selectively adjusting E-fuses, thereby improving the accuracy and reliability of chip shipment.
Implementation Method 1
The E-fuse in the chip to be tested is subjected to blowing treatment according to the target adjustment solution
Data Source
AI summary
An adjustment method for the chip output characteristics can include the following steps. When adjusting the output characteristics of the chip to be tested, first it is determined whether the output characteristics of the chip to be tested have been adjusted according to the state of each E-fuse. When determining that the output characteristics of the chip to be tested have not been adjusted, the target adjustment solution corresponding to the chip is determined among a plurality of adjustment solutions in a targeted manner according to the output performance of the chip to be tested. The E-fuse in the chip to be tested is subjected to blowing treatment according to the target adjustment solution, so as to adjust the output characteristics of the chip to be tested.