Integrated Circuit Temperature Compensation During Preset Operation
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Solution Overview
Problem
Semiconductor devices face performance degradation and potential operation failure due to temperature variations, as existing technologies only sense temperature during an initial setting period, failing to compensate for changes during ongoing operations.
Innovation Solution
An integrated circuit design that includes signal generation units for enabling temperature sensing during both initial setting and preset operation periods, a temperature code generation unit for converting sensed temperatures into codes, and a voltage control unit for adjusting internal voltages based on temperature comparisons, allowing for continuous temperature compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If temperature sensing is performed only during initial setting period, then device complexity is reduced, but temperature compensation precision deteriorates because temperature changes during operation cannot be detected
Solution Approach 1:
The temperature sensing operation is segmented into two distinct periods: initial setting period (first enable signal) and operation period (second enable signal). This segmentation allows the system to sense temperature at critical moments without requiring continuous sensing, balancing complexity and precision requirements.
Solution Approach 2:
Temperature sensing is performed periodically at specific intervals - once during initial setting and again during operation period. This periodic action ensures temperature compensation precision while avoiding the complexity of continuous sensing systems.
2Measurement precision
If continuous temperature sensing is performed during operation, then temperature compensation precision is improved, but energy consumption increases due to continuous operation of sensing circuits
Solution Approach 1:
The temperature sensing circuits operate periodically only during specific periods (initial setting and operation periods) rather than continuously. The enable signals control the sensing circuits to activate only when temperature measurement is needed, significantly reducing energy consumption while maintaining compensation precision.
Solution Approach 2:
The temperature sensing system activates automatically at appropriate times through the enable signal mechanism, sensing temperature only when required for compensation decisions, avoiding wasteful continuous operation.
3Speed
If temperature sensing is performed only during initial setting period, then operation speed is improved by reducing sensing overhead, but reliability deteriorates because temperature changes during operation cannot be compensated
Solution Approach 1:
The sensing operation is segmented into two phases: initial setting phase for baseline temperature capture and operation phase for real-time temperature monitoring. This segmentation ensures reliability by capturing temperature at both critical moments without significantly impacting operation speed.
Solution Approach 2:
Temperature sensing is performed in advance during the initial setting period to establish baseline conditions before the main operation begins. This preliminary action prepares the compensation system without delaying the actual operation.
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
Enables precise temperature compensation during semiconductor device operations, preventing performance degradation and ensuring stable operation even with temperature fluctuations.
Implementation Method 1
a temperature sensing unit suitable for sensing a temperature in response to the activations of each of the first and second enable signals
Data Source
AI summary
An integrated circuit includes a first signal generation unit suitable for generating a first enable signal which is activated during an initial setting period; a second signal generation unit suitable for generating a second enable signal which is activated in response to a command for performing a preset operation, after the initial setting period; and a temperature code generation unit suitable for generating temperature codes in response to activation of the first and second enable signals.