Temperature Sensor Gate Electrode Structure for Accurate Transistor Simulation
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Solution Overview
Problem
Conventional temperature sensors do not accurately simulate operating and temperature conditions within electronic components, limiting their effectiveness in providing reliable temperature measurements.
Innovation Solution
The design of the temperature sensor closely replicates the operational transistor structures by incorporating a drain electrode, source electrode, and a gate electrode with a runner and gate fingers, including gaps and conductive bridges to achieve a linear relationship between resistance and temperature, allowing for accurate temperature measurement reflective of operational transistor conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional temperature sensors are used, then the device structure is simple, but the temperature measurement accuracy is insufficient
Solution Approach 1:
The temperature sensor replicates the structure of operational transistor structures by incorporating a drain electrode, source electrode, and gate electrode with runner and gate fingers. This copying approach allows the sensor to accurately simulate operating conditions within electronic components, thereby improving temperature measurement accuracy while maintaining structural simplicity through reuse of proven designs.
2Ease of manufacture
If the temperature sensor structure is simplified, then the manufacturing is easier, but the simulation of operating conditions becomes inaccurate
Solution Approach 1:
The gate electrode is divided into gate fingers connected by a runner with conductive bridges, replicating the segmented structure of operational transistors. This segmentation allows the sensor to accurately simulate local temperature conditions at different regions while maintaining ease of manufacture through standardized fabrication processes.
Solution Approach 2:
The sensor incorporates multiple gate fingers and conductive bridges that create distinct regions with different electrical characteristics. Each region can independently simulate local operating conditions, providing reliable temperature measurement for specific areas while maintaining overall manufacturing simplicity.
3Measurement precision
If the temperature sensor uses a complex structure to improve accuracy, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The temperature sensor structure serves multiple functions: it acts as both a temperature sensing element and a replica of operational transistor structures. The drain electrode, source electrode, and gate electrode configuration provides both accurate temperature measurement and simulation of operating conditions, reducing the need for separate components and thereby managing device complexity.
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 design enables the temperature sensor to provide more accurate temperature readings that correspond to the operational transistor structures, offering flexibility in achieving various resistances and ensuring accurate temperature measurement across a range of operating conditions from 25° C. to 200° C.
Implementation Method 1
achieve a linear relationship between resistance and temperature, allowing for accurate temperature measurement
Data Source
AI summary
An electronic device can include a temperature sensor. The temperature sensor can include a drain electrode including drain fingers spaced apart from the source fingers; a source electrode including source fingers spaced apart from the drain fingers; and a gate electrode including a runner, gate fingers and a conductive bridge. In an embodiment, the runner includes a first portion and a second portion spaced apart from the first portion, the gate fingers are coupled to the runner and each gate finger is disposed between a pair of the source and drain fingers. The conductive bridge connects at least two gate fingers, wherein the conductive bridge is along a conduction path between the first and second portions of the runner. Designs for the temperature sensor may provide a more accurate temperature measurement reflective of a transistor within the electronic device.