Segmented Gate Wiring in Parallel Semiconductors for Stable Switching
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Solution Overview
Problem
Semiconductor devices with high-speed switching elements experience unexpected oscillations in driving signals, leading to potential circuit malfunctions.
Innovation Solution
A semiconductor device configuration that includes multiple semiconductor elements connected through specific wiring and connection members to suppress oscillations, with each element's electrodes connected in parallel and controlled by dedicated control terminals and wiring portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple semiconductor elements are parallelly connected to secure tolerable current, then the current capacity is improved, but the complexity of wiring and connection increases
Solution Approach 1:
The patent divides the wiring system into separate first wiring portions and second wiring portions, with first connection members connecting control terminals to first wiring portions and second connection members connecting second wiring portions to semiconductor elements. This segmentation organizes the complex wiring into manageable sections, reducing overall wiring complexity while maintaining the parallel connection architecture for current capacity.
Solution Approach 2:
The patent introduces first wiring portions as intermediary elements between control terminals and semiconductor elements. These first wiring portions act as mediators that simplify the direct connection complexity by providing structured intermediate connection points, making the overall wiring system more manageable while preserving the parallel architecture.
2Speed
If high-speed switching operation is implemented, then the switching speed is improved, but oscillation in driving signals occurs
Solution Approach 1:
The first wiring portions serve as intermediary elements between control terminals and semiconductor elements, providing controlled impedance paths that reduce signal oscillation during high-speed switching operations. This intermediary structure helps maintain signal integrity while enabling fast switching performance.
Solution Approach 2:
The patent modifies the wiring parameters by creating separate first and second wiring portions with specific connection configurations, changing the electrical characteristics of the signal path. This parameter change reduces oscillation tendencies while maintaining the high-speed switching capability of the semiconductor elements.
3Ease of operation
If control terminals are directly connected to semiconductor elements, then the connection simplicity is improved, but signal oscillation increases
Solution Approach 1:
The first wiring portions act as necessary intermediaries between control terminals and semiconductor elements, providing a structured connection approach that is neither overly simple nor overly complex. This intermediary layer stabilizes signals during high-speed operations while maintaining reasonable connection simplicity through organized wiring structures.
Data Source
AI summary
A semiconductor device includes a plurality of semiconductor elements, each of which has a first electrode, a second electrode, and a third electrode, and is subjected to an ON-OFF control between the first electrode and the second electrode in accordance with a driving signal input to the third electrode. Further, the semiconductor device includes a control terminal to which the driving signal is input, a first wiring portion to which the control terminal is connected, a second wiring portion separated from the first wiring portion, a first connection member to conduct the first wiring portion and the second wiring portion, and a second connection member to conduct the second wiring portion and the third electrode of one of the plurality of semiconductor elements. The respective first electrodes of the plurality of semiconductor elements are electrically connected to one another, and respective second electrodes of the plurality of semiconductor elements are electrically connected to one another.