III-V Transistor and Varactor Layout With Shared Electrodes
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Solution Overview
Problem
Current electronic device manufacturing processes are complex and costly, with a need for reduced dimensions and simplified processes.
Innovation Solution
An electronic device incorporating a substrate with both a III-V semiconductor material-based transistor and variable capacitor, integrated on the same substrate using epitaxy processes and lithography etching, sharing metal electrodes to reduce manufacturing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate manufacturing processes are used for transistors and variable capacitors, then device functionality is achieved, but manufacturing complexity and costs increase
Solution Approach 1:
The patent merges the manufacturing processes for transistors and variable capacitors into a single integrated process. Both device types are formed on the same substrate using the same III-V semiconductor material layers and identical metal electrode structures, eliminating the need for separate manufacturing lines and reducing overall process complexity.
Solution Approach 2:
The patent creates a universal manufacturing process that can produce both transistors and variable capacitors using the same material layers and fabrication steps. The metal electrodes serve multiple functions as both transistor electrodes and variable capacitor electrodes, reducing the total number of manufacturing operations required.
2Reliability
If additional metal electrodes and pads are used, then device functionality is ensured, but manufacturing costs and device dimensions increase
Solution Approach 1:
The patent combines the metal electrode structures to serve dual purposes: the same metal electrodes function as both transistor electrodes and variable capacitor electrodes. This merging eliminates redundant electrodes and pads, reducing both manufacturing complexity and device footprint while maintaining complete device functionality.
Solution Approach 2:
The metal electrodes are designed with multi-functionality, serving as electrodes for both transistor and variable capacitor components simultaneously. This universal electrode structure reduces the total number of metal layers and pads required, thereby reducing manufacturing steps and overall device dimensions.
3Reliability
If different materials are used for transistor and variable capacitor, then device performance is optimized, but manufacturing complexity increases
Solution Approach 1:
The patent uses the same III-V semiconductor material for both transistor and variable capacitor fabrication, creating homogeneity in the material system. This uniform material approach allows both device types to be manufactured using identical epitaxial growth processes and material layers, significantly simplifying the manufacturing process while maintaining optimal performance for both device types.
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 integration simplifies the manufacturing process, reduces costs, and minimizes device dimensions by eliminating the need for additional metal electrodes and pads, while utilizing III-V semiconductor materials for improved performance.
Implementation Method 1
A material of the transistor and a material of the variable capacitor both include a III-V semiconductor material
Data Source
AI summary
The disclosure provides an electronic device. The electronic device includes a substrate, a transistor, and a variable capacitor. The transistor is disposed on the substrate. The variable capacitor is disposed on the substrate and adjacent to the transistor. A material of the transistor and a material of the variable capacitor both a include a III-V semiconductor material. The electronic device of an embodiment of the disclosure may simplify manufacturing process, reduce costs, or reduce dimensions.