Semiconductor Device Independent Power Supply Temperature Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In low temperature environments, memory write operations in semiconductor devices experience long writing times and low stability due to increased resistances in word lines, bit lines, and metal connecting lines, affecting data storage and retrieval.
Innovation Solution
A semiconductor device with a temperature detection unit that uses a separate power supply from the storage chip, allowing independent activation and operation, thereby detecting temperature independently of the storage chip's activation state, and providing a reference for optimal operation and avoiding low-temperature activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the temperature detection unit shares the same power supply as the storage chip, then the device structure is simplified, but the temperature detection cannot be performed independently when the storage chip is not activated
Solution Approach 1:
The power supply system is segmented into two independent parts: a first power supply for the storage chip and a second power supply for the temperature detection unit. This allows the temperature detection unit to operate independently regardless of the storage chip's activation state, resolving the contradiction between structural simplicity and operational independence.
Solution Approach 2:
The temperature detection unit is designed with universal operational capability, able to function independently through its dedicated power supply. This multi-functionality enables temperature monitoring both when the storage chip is active and when it is in standby, ensuring continuous temperature awareness without requiring storage chip activation.
2Measurement precision
If the storage chip is activated to enable temperature detection, then temperature can be measured, but the detection is dependent on storage chip activation which may not be appropriate in all scenarios
Solution Approach 1:
By segmenting the power supply system into independent first and second power supplies for the storage chip and temperature detection unit respectively, the temperature detection unit can be activated independently. This enables temperature measurement without requiring storage chip activation, improving adaptability to different operational scenarios while maintaining measurement precision.
Solution Approach 2:
The temperature detection unit is equipped with its own dedicated power supply, allowing it to self-activate and perform temperature detection independently without relying on the storage chip's activation state. This self-service capability ensures temperature monitoring is always available when needed, regardless of storage chip operational status.
3Device complexity
If a single power supply is used for both storage chip and temperature detection unit, then power management is simplified, but temperature detection is affected by storage chip activation state
Solution Approach 1:
The power management system is divided into two independent power supplies: one for the storage chip and another for the temperature detection unit. This segmentation ensures that temperature detection reliability is maintained independently of storage chip activation, while the increased power management complexity is justified by the improved reliability in critical temperature monitoring scenarios.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention provides a semiconductor device, comprising a storage chip and a temperature detection unit for detecting the temperature of the storage chip, the temperature detection unit and the storage chip being powered by different power supplies. The advantage of the present invention is as follows. The storage chip and the temperature detection unit use different power supplies, and thus, the activations of both of them can be controlled separately, i.e., the activation of the temperature detection unit is free from whether a storage chip is activated, so that the detection of the temperature of the storage chip is not affected by whether a storage chip is activated, thereby providing a reference for the activation and operation of the storage chip, and in turn avoiding the activation or operation of the storage chip under low temperatures and improving the stability of the storage chip.