IC Heating Element Layout for Faster Overheat Detection
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Solution Overview
Problem
Existing integrated circuit devices fail to quickly detect overheated states due to heat bias within the chip, which is not accounted for in the arrangement of transistors and temperature sensors, leading to inaccurate detection.
Innovation Solution
The integrated circuit device is designed with a specific arrangement of heating elements and temperature sensors, where the temperature sensors are positioned between the center of the heating elements and the edge of the chip, allowing for quicker detection of overheated states by considering heat distribution patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is arranged without considering heat bias, then the device structure is simple, but the detection accuracy of overheated state deteriorates
Solution Approach 1:
The temperature sensor is positioned at a specific location where the X-coordinate is between the center of the heating element and the second side, and the Y-coordinate is between the first heating element and the second heating element. This localized positioning ensures the sensor detects temperature in the region most affected by heat bias, improving detection accuracy without requiring multiple sensors throughout the chip.
2Measurement precision
If the temperature sensor is arranged at the center of the heating element, then the detection response is fast, but the detection accuracy deteriorates due to heat bias
Solution Approach 1:
Instead of placing the temperature sensor at the symmetric center of the heating element, the patent positions it asymmetrically at coordinates where X is between the center and the second side, and Y is between the first and second heating elements. This asymmetric positioning accounts for the non-uniform heat distribution caused by heat bias, allowing the sensor to detect overheated states accurately while maintaining relatively fast response time.
3Area of stationary object
If multiple heating elements are arranged closely, then the chip area is reduced, but heat bias increases causing detection inaccuracy
Solution Approach 1:
The patent arranges the first and second heating elements adjacent to each other along the Y-direction, creating a spatial configuration where heat bias occurs primarily in the X-direction. The temperature sensor is positioned to detect this X-direction heat bias, effectively managing thermal interference while maintaining compact chip area through efficient use of the Y-direction for element placement.
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
This arrangement improves heat dissipation and enables rapid detection of overheating, preventing malfunctions by effectively managing heat bias within the circuit.
Implementation Method 1
heat bias inside the chip occurs... considering heat distribution patterns
Data Source
AI summary
An integrated circuit device includes a heating element, and a temperature sensor configured to detect a temperature of the heating element. An outer shape of the integrated circuit device has a first side and a second side intersecting the first side, and when a direction along the first side of the integrated circuit device is set as an X direction and a direction along the second side is set as a Y direction, the heating element includes a first heating element, and a second heating element arranged adjacent to the first heating element along the Y direction with a region AR interposed therebetween. The temperature sensor is arranged at an arrangement position where a position in the X direction is a position between a center of the region AR and the second side, and a position in the Y direction is a position between the first heating element and the second heating element.