DRAM Eye Diagram Voltage Tuning for Defect Detection
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Solution Overview
Problem
DRAM in electronic devices can deteriorate due to stress from assembly processes, high temperatures, and electro-static discharge, leading to defects and increased power consumption, and existing methods for identifying defects are inadequate.
Innovation Solution
An electronic device generates and compares eye diagrams based on DRAM training with varying driving voltages to identify parameters, adjusting the voltage to optimize performance and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving voltage of DRAM is increased to improve performance, then the operating speed and reliability are improved, but the power consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the driving voltage of DRAM based on its operational state and detected defects. The system monitors DRAM performance metrics and modifies voltage parameters in real-time, allowing the DRAM to operate at optimal voltage levels that balance reliability and power consumption. This resolves the contradiction by making voltage a dynamic parameter rather than a fixed value.
2Productivity
If DRAM operates under stress conditions (high temperature, assembly processes) to meet performance requirements, then the device functionality is maintained, but the DRAM deteriorates and develops defects
Solution Approach 1:
The patent implements preliminary action by performing defect detection and characterization before the DRAM is fully integrated into the electronic device. The system conducts stress tests and eye diagram analysis during the assembly process to identify potential issues early, allowing for preventive measures to be taken. This resolves the contradiction by detecting and addressing DRAM deterioration before it leads to device failure.
Solution Approach 2:
The patent applies feedback mechanisms by continuously monitoring DRAM performance during operation and using this information to adjust operating conditions. The system analyzes eye diagrams and other performance metrics in real-time, providing feedback that allows for dynamic adjustment of voltage and operational parameters. This resolves the contradiction by creating a closed-loop system that prevents deterioration while maintaining functionality.
3Measurement precision
If existing defect identification methods are used for DRAM, then some defects can be detected, but the methods are inadequate for comprehensive defect detection and characterization
Solution Approach 1:
The patent introduces an intermediary detection system that uses eye diagram analysis as a mediator between the DRAM and the defect detection process. Instead of directly measuring physical defects, the system uses eye diagrams as an intermediary representation that captures the cumulative effect of various defects and deterioration. This resolves the contradiction by providing comprehensive defect detection through an indirect but more informative measurement approach.
Data Source
AI summary
An electronic device is provided. The electronic device includes dynamic random access memory (DRAM), memory, and one or more processors communicatively coupled to the DRAM and the memory, wherein the memory store one or more computer programs including computer-executable instructions that, when executed by the one or more processors, cause the electronic device to generate a first eye diagram based on training the DRAM with a driving voltage, identify a first parameter in a designated format corresponding to the generated first eye diagram, generate a second eye diagram based on training the DRAM with the driving voltage, compare the identified first parameter with a second parameter in the designated format corresponding to the generated second eye diagram, and adjust the driving voltage based on a result of the comparison between the first parameter and the second parameter.