Dynamic Thermal Management for Semiconductor Devices
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Solution Overview
Problem
Existing dynamic thermal management methods for semiconductor devices apply strict frequency constraints based on temperature, which can standardize performance downward, failing to optimize performance across devices with varying power characteristics.
Innovation Solution
A method of dynamic thermal management that classifies devices into groups based on power characteristics, calculates allowable power using temperature deviations, and derives optimized frequencies using power tables specific to each group, allowing for dynamic adjustment of operating frequencies to achieve maximum performance while maintaining temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If strict frequency constraints are applied according to temperature to ensure temperature protection, then device reliability is improved, but device performance deteriorates
Solution Approach 1:
The patent applies different frequency constraints to different devices based on their individual power characteristics. Devices are classified into multiple groups according to their power consumption levels, and each group receives customized frequency limits rather than a uniform constraint. This allows devices with better power characteristics to operate at higher frequencies while still maintaining temperature protection, thereby resolving the contradiction between reliability and performance.
Solution Approach 2:
The patent dynamically adjusts the frequency constraint parameter based on device-specific power characteristics and real-time temperature conditions. By changing the frequency limit parameter according to each device's power profile and current temperature, the system achieves optimized performance while maintaining thermal safety, rather than applying fixed strict constraints to all devices.
2Device complexity
If uniform frequency limits are applied to all devices of the same type, then temperature control is simplified, but performance optimization is lost
Solution Approach 1:
The patent performs preliminary classification of devices into power characteristic groups before operation begins. By pre-categorizing devices according to their power consumption profiles and storing the corresponding frequency constraints, the system simplifies real-time temperature control while enabling performance optimization. This preliminary action avoids the need for complex real-time analysis during operation.
Solution Approach 2:
The patent implements device-specific frequency constraints tailored to each device's power characteristics. Rather than applying a single uniform limit to all devices, the system assigns customized frequency limits to each device based on its classified power profile, enabling performance optimization while maintaining manageable temperature control through systematic classification.
Data Source
AI summary
A method of dynamic thermal management includes measuring a current temperature of a first device, calculating an allowable power using the current temperature, deriving an allowable frequency corresponding to the current temperature and the allowable power using first data, and modifying an operating frequency of the first device with the allowable frequency. The first data is a data related to a first group to which the first device belongs, and the first data includes power values corresponding to temperature and frequency.