Storage Chip Temperature Sensing for Stable Low-Temperature Writes
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Solution Overview
Problem
Low temperature environments affect the stability and prolong the writing time in memory devices due to increased resistances in word lines, bit lines, and metal connecting lines, leading to unstable data writing.
Innovation Solution
A temperature detection module is integrated into the semiconductor device to detect the temperature of the storage chip, providing a reference for activation and operation, thereby avoiding activation under low temperatures and improving writing stability by controlling the activation and operation based on a set threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage chip is activated in low temperature environments, then the storage chip can operate, but the write time is prolonged and writing stability is reduced
Solution Approach 1:
The temperature detection module performs temperature detection before the storage chip is activated. The controller checks the detected temperature and only activates the storage chip when the temperature meets the preset activation condition. This preliminary temperature check prevents low-temperature operation issues before they occur, resolving the contradiction by ensuring reliable writing while avoiding unnecessary time delays.
2Reliability
If a temperature detection module is added to detect storage chip temperature, then writing stability is improved, but the circuit complexity and occupied area increase
Solution Approach 1:
The temperature detection module is designed with a simple circuit structure that can be integrated into the existing storage chip architecture. The module uses a temperature detection unit with minimal components (comparator, reference voltage source, and sensing elements) that serve multiple purposes: temperature sensing, activation control, and operational monitoring. This multi-functional design improves writing stability while minimizing the increase in circuit complexity.
Solution Approach 2:
The temperature detection module is placed locally at the storage chip where temperature detection is most critical. By concentrating the detection functionality in a small, localized circuit rather than distributing it throughout the entire system, the occupied area is minimized while still achieving the reliability improvement in writing operations.
3Area of stationary object
If the storage chip is activated without temperature detection, then the active area is maximized, but the storage chip cannot operate reliably under low temperatures
Solution Approach 1:
Instead of implementing a comprehensive temperature control system that would occupy significant area, the invention uses a partial action approach with a simplified temperature detection module that only performs the essential function of detecting whether the temperature meets the activation threshold. This minimal detection capability provides sufficient reliability improvement while occupying minimal active area, effectively resolving the contradiction between maximizing active area and ensuring reliable operation.
Data Source
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Figure 2B~3
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AI summary
The present invention provides a semiconductor device comprising a storage chip and a temperature detection module for detecting a temperature of the storage chip. When the temperature detected by the temperature detection module reaches a set threshold, the storage chip is activated. The temperature detection module comprises: a temperature detection unit for detecting a temperature of the storage chip and outputting an analogue signal corresponding to the temperature; an A/D conversion module having an input terminal and an output terminal, wherein the input terminal receives the analogue signal output by the temperature detection unit, the output terminal outputs a digital signal, and the A/D conversion module is configured to convert the analogue signal output by the temperature detection unit to the digital signal. The present invention utilizes the temperature detection module to detect the temperature of the storage chip so as to provide a reference for the activation and operation of the storage chip, avoiding the activation and operation of the storage chip under low temperatures, shortening write time, and improving the stability of the storage chip write; the temperature detection module has a simple circuit structure and is easy for implementation, with a small occupied area, exerting no influence on the active area of the storage chip.