Temperature Detection Using Dual Oscillators for Memory Stability
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Solution Overview
Problem
Semiconductor memory devices face operational issues due to temperature variations, leading to potential shutdowns at high temperatures and decreased performance at low ambient temperatures, especially in mobile devices lacking separate cooling systems.
Innovation Solution
A temperature detecting apparatus utilizing two oscillators, one temperature-independent and one temperature-dependent, compares pulse widths to determine operating temperatures and adjusts clock speed accordingly, preventing shutdowns and ensuring reliable data processing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operation speed of the semiconductor memory device is increased to improve data processing performance, then productivity is improved, but the generated heat increases causing the device to stop operating at high temperatures
Solution Approach 1:
The patent implements dynamic adjustment of operation speed based on real-time temperature monitoring. The semiconductor memory device automatically increases operation speed when temperature is low and decreases it when temperature is high, allowing the system to maintain optimal performance while preventing thermal shutdown. This dynamic adaptation resolves the contradiction by making operation speed variable rather than fixed.
Solution Approach 2:
The patent employs a temperature detection apparatus that continuously monitors device temperature and provides feedback to control the operation speed. This closed-loop feedback mechanism enables the system to respond to temperature changes and adjust performance accordingly, ensuring reliability while maximizing productivity within safe thermal limits.
2Productivity
If the operation speed is increased to guarantee data processing speed, then productivity is improved, but the device requires cooling systems that increase device complexity
Solution Approach 1:
The semiconductor memory device performs self-thermal-management by automatically adjusting its operation speed based on internal temperature conditions. This self-service mechanism eliminates the need for external cooling systems in mobile devices, reducing device complexity while maintaining data processing speed within acceptable ranges.
3Reliability
If the operation speed is decreased to reduce heat generation, then reliability is improved, but the data processing speed becomes slow
Solution Approach 1:
The patent implements dynamic adjustment of operation speed based on real-time temperature monitoring. The semiconductor memory device automatically increases operation speed when temperature is low and decreases it when temperature is high, allowing the system to maintain optimal performance while preventing thermal shutdown. This dynamic adaptation resolves the contradiction by making operation speed variable rather than fixed.
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
The solution effectively maintains operational stability by adjusting clock speed based on temperature, preventing semiconductor memory device shutdowns and ensuring consistent data processing speed across varying temperatures.
Implementation Method 1
a first oscillator that outputs a first oscillating signal in response to a first oscillator reset signal, the first oscillating signal being independent of the temperature
Implementation Method 2
a second oscillator that outputs a second oscillating signal in response to a second oscillator enable signal, the second oscillating signal being dependent on the temperature
Implementation Method 3
a comparator that compares an output pulse of the first oscillator with an output pulse of the second oscillator, and then outputs a temperature detection comparison signal
Data Source
AI summary
There is provided a temperature detecting apparatus for improving operational characteristics, which vary according to the temperature, of elements in a semiconductor memory device. The temperature detecting apparatus of the present invention includes: a first oscillator that outputs a first oscillating signal in response to a first oscillator reset signal, the first oscillating signal being independent of the temperature; a second oscillator that outputs a second oscillating signal in response to a second oscillator enable signal, the second oscillating signal being dependent on the temperature; a comparator that compares an output pulse of the first oscillator with an output pulse of the second oscillator and then outputs a temperature detection comparison signal; and an output unit that outputs a temperature detection signal in response to an input of the temperature detection comparison signals.