Three-Level Electrode Layout for Stronger Magnetic Coupling
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Solution Overview
Problem
Conventional semiconductor devices with three-level circuits in a package do not optimize the positions of external connectors connected to electrodes, limiting the magnetic coupling effect for reducing inductance.
Innovation Solution
The semiconductor device includes a specific arrangement of electrodes with overlapping main surface portions and external connecting portions to enhance magnetic coupling, reducing inductance and surge voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external connectors are connected to electrodes in a conventional three-level circuit package, then the basic circuit functionality is achieved, but the magnetic coupling effect is insufficient and inductance is not minimized
Solution Approach 1:
The patent applies local quality by making different parts of the electrode structure serve different functions: the main surface portions are positioned to face each other for optimal magnetic coupling, while the external connecting portions are arranged in specific directions to facilitate connector attachment. This differentiated local arrangement optimizes both magnetic coupling effect and manufacturing ease without requiring complete reconfiguration of the entire electrode structure.
Solution Approach 2:
The patent utilizes spatial arrangement in multiple dimensions by having main surface portions face each other in one direction while external connecting portions extend in different directions. This multi-dimensional positioning allows the electrodes to achieve both strong magnetic coupling through overlapping main surfaces and easy connector integration through optimally oriented external connecting portions.
2Reliability
If external connectors are positioned without optimization, then manufacturing is simpler, but the inductance reduction effect is limited
Solution Approach 1:
The electrode structure implements local quality by differentiating between main surface portions that require precise facing arrangement for magnetic coupling and external connecting portions that provide standardized attachment points. This local differentiation achieves high inductance reduction through precise main surface positioning while maintaining manufacturing simplicity through standardized external connector positions.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the electrodes with optimally positioned main surface portions and external connecting portions during manufacturing. This preliminary optimization of spatial arrangement ensures that when connectors are attached, the magnetic coupling effect is already maximized, eliminating the need for post-assembly position adjustments and achieving both low inductance and manufacturing efficiency.
3Reliability
If main surface portions are arranged to face and overlap each other, then magnetic coupling effect is enhanced, but the device structure becomes more complex
Solution Approach 1:
The patent reduces overall device complexity by applying local quality only where necessary: the main surface portions are precisely arranged to face each other for magnetic coupling, while the external connecting portions use simpler, standardized configurations. This localized precision approach achieves enhanced magnetic coupling without requiring complex arrangements throughout the entire electrode structure.
Solution Approach 2:
The electrode structure is segmented into distinct functional regions: main surface portions for magnetic coupling and external connecting portions for connector attachment. This segmentation allows each region to be optimized independently, achieving strong magnetic coupling through focused main surface arrangement while keeping the overall device structure manageable through clear functional separation.
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 enhances the magnetic coupling effect, reducing inductance and surge voltage, and simplifies manufacturing while potentially lowering costs.
Implementation Method 1
a current passing through the main surfaces facing each other provides a magnetic coupling effect for reducing the inductance
Data Source
AI summary
An object is to provide a technology that can enhance the magnetic coupling effect. A semiconductor device includes: a P electrode including a first main surface portion and a first external connecting portion; an N electrode including a second main surface portion and a second external connecting portion; and a C electrode including a third main surface portion, and a third-first external connecting portion and a third-second external connecting portion. The first external connecting portion and the third-first external connecting portion are arranged in a direction in which the first main surface portion and the third main surface portion face each other, and the second external connecting portion and the third-second external connecting portion are arranged in a direction in which the second main surface portion and the third main surface portion face each other.