Semiconductor Connection Conductor with Opposing Current Paths
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Solution Overview
Problem
Conventional power semiconductor modules face issues with inductances and induced magnetic fields due to unbalanced current paths, which can affect internal and external devices, especially when there is no opposing current path to cancel these effects.
Innovation Solution
A semiconductor apparatus with a connection conductor that includes current paths with opposite directions, forming a parallel board structure to reduce inductances and induced magnetic fields by allowing current to flow between devices, thereby mitigating the impact of these fields on internal and external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If current paths are arranged in parallel with opposite directions to cancel inductances and induced magnetic fields, then the harmful electromagnetic effects are reduced, but the circuit structure becomes more complex and may not be applicable to all circuit configurations
Solution Approach 1:
The connection conductor is divided into multiple current paths (first current path and second current path) that carry currents in opposite directions. This segmentation allows the total current to be split into components that generate opposing magnetic fields, thereby canceling each other and reducing the net inductance and harmful electromagnetic effects.
Solution Approach 2:
A third current path is introduced as an intermediary between the first and second current paths. This intermediate path facilitates the transition and interaction between the two opposing current flows, enabling effective cancellation of magnetic fields while maintaining circuit functionality. The third path acts as a mediator that balances the electromagnetic interactions.
2Device complexity
If a simple current path is used to supply current from one device to another, then the circuit structure remains simple, but inductances and induced magnetic fields affect internal and external devices
Solution Approach 1:
Instead of using a single current path, the invention introduces a second current path that carries current in the opposite direction to the first current path. By inverting the current direction in one path, the magnetic fields generated by the two paths oppose each other, canceling the harmful inductive effects while maintaining a relatively simple overall structure.
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 solution effectively reduces the generation of inductances and induced magnetic fields, enhancing wiring design flexibility and reducing the implementation area of the semiconductor apparatus while minimizing the effects on internal devices.
Implementation Method 1
a connection conductor that electrically connects the first device to the second device
Implementation Method 2
these electrodes are brought into close contact with each other in parallel such that the inductances and the induced magnetic fields generated by these wiring electrodes cancel out
Data Source
AI summary
A semiconductor apparatus reduces the effect of inductances and induced magnetic fields, and causes a large current to flow from one device to another device. Provided is a semiconductor apparatus comprising a first device of a first region; a second device of a second region; and a connection conductor that electrically connects the first device to the second device. The connection conductor includes current paths that are adjacent and have opposite directions in at least a portion thereof. The connection conductor causes current to flow from the first device to the second device, and causes current to flow in a direction from the second device toward the first device in at least a portion thereof.