Integrated Diode JFET Device for High Blocking Voltage
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Solution Overview
Problem
Discrete semiconductor components face challenges such as high production costs, heat transfer issues, and leakage problems when used separately, necessitating a more integrated and efficient solution for computing applications.
Innovation Solution
A diode device integrating a junction field-effect transistor (JFET) portion and a diode portion within a semiconductor substrate, where the diode portion is serially coupled to the JFET channel, allowing for a higher blocking voltage and improved performance by combining the diode and JFET functions in a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple discrete semiconductor components are used together, then various functions can be performed in computing applications, but the production cost increases and heat transfer issues and leakage problems worsen
Solution Approach 1:
The patent combines a diode portion and a JFET portion into a single integrated semiconductor device. The diode portion includes a first doped region and a second doped region forming a PN junction, while the JFET portion includes a channel region with third doped regions on either side. This merging of multiple discrete components into one integrated structure eliminates the interface problems between separate components, thereby resolving heat transfer issues and leakage problems while maintaining the ability to perform multiple functions.
2Adaptability or versatility
If multiple discrete semiconductor components are used together, then various functions can be performed, but the production cost becomes greater than integrating devices into a single component
Solution Approach 1:
The patent integrates a diode portion and a JFET portion into a single semiconductor device structure. The diode portion comprises a first doped region and a second doped region, while the JFET portion includes a channel region with third doped regions. By combining these functions in one device rather than using separate discrete components, the patent reduces production costs associated with manufacturing and assembling multiple separate parts, while still achieving the desired functional versatility.
3Reliability
If a diode portion and JFET portion are integrated in a single device, then blocking voltage and performance improve, but device structure becomes more complex
Solution Approach 1:
The patent divides the integrated device into distinct functional portions: a diode portion with a first doped region and second doped region forming a PN junction, and a JFET portion with a channel region and third doped regions. This segmentation allows each portion to be optimized for its specific function while maintaining an integrated structure. The clear spatial and functional separation within the single device simplifies the overall design and manufacturing process compared to attempting to create a fully integrated structure without clear functional zones.
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
The integrated diode device achieves a higher blocking voltage and improved performance by leveraging the diode and JFET functions, addressing the limitations of separate components and enhancing reliability and efficiency in computing applications.
Implementation Method 1
a diode portion including a PN junction having at least a portion disposed between the anode terminal and the heavily doped portion of the isolation region
Implementation Method 2
a junction field-effect transistor (JFET) portion having a channel disposed within the isolation region
Data Source
AI summary
In one general aspect, an apparatus can include an anode terminal, and a cathode terminal. The apparatus can include a junction field-effect transistor (JFET) portion having a channel disposed within a semiconductor substrate and defining a first portion of an electrical path between the anode terminal and the cathode terminal. The apparatus can also include a diode portion formed within the semiconductor substrate and defining a second portion of the electrical path between the anode terminal and the cathode terminal. The diode portion can be serially coupled to the channel of the JFET device.