Laminated Electronic Component Parasitic Inductance Reduction
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Solution Overview
Problem
High-frequency signal processing electronic components with laminated dielectric layers face issues due to parasitic inductors forming at signal paths, leading to increased impedance and signal transmission delays, which deviate from desired characteristics.
Innovation Solution
The electronic component design includes a configuration with multiple capacitor electrodes and terminals, where the inductance and impedance of specific paths are optimized to reduce parasitic inductance, allowing signal transmission through alternative paths with lower impedance, thereby minimizing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the frequency of the signal is increased, then the processing capability of the electronic component is improved, but the impedance of the parasitic inductor increases causing signal transmission delay
Solution Approach 1:
The grounding terminal is divided into multiple grounding terminal portions (first grounding terminal portion and second grounding terminal portion) that are separately connected to different capacitor electrodes. This segmentation reduces the inductance of each individual grounding path, thereby reducing signal transmission delay and preventing characteristic deviation at high frequencies.
Solution Approach 2:
The patent introduces a multi-dimensional electrode configuration where capacitor electrodes are arranged in multiple layers and connected to different terminal portions. This spatial arrangement in multiple dimensions creates multiple parallel signal paths, reducing the inductance of each path and improving high-frequency signal transmission.
2Reliability
If the length of the grounding terminal is increased, then the grounding effectiveness is improved, but the inductance of the grounding terminal increases
Solution Approach 1:
The grounding terminal is segmented into multiple portions that are distributed across different locations and connected to different capacitor electrodes. This segmentation allows the grounding function to be distributed across multiple shorter paths rather than relying on a single long terminal, thereby reducing inductance while maintaining grounding effectiveness.
Solution Approach 2:
Multiple grounding terminal portions are combined to work together as a distributed grounding system. Each portion contributes to the overall grounding effectiveness while maintaining low inductance through its shorter length, and their combined effect provides both low inductance and effective grounding.
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 design effectively reduces or prevents the deviation of electronic component characteristics from desired specifications by ensuring efficient high-frequency signal transmission, even at increased frequencies.
Implementation Method 1
The first capacitor electrode defines a first capacitor along with the third capacitor electrode. The second capacitor electrode defines a second capacitor along with the third capacitor electrode.
Data Source
AI summary
An electronic component includes a first terminal, a second terminal, a first capacitor electrode, a second capacitor electrode, and a third capacitor electrode. The third capacitor electrode is connected to the first terminal. The first capacitor electrode defines a first capacitor along with the third capacitor electrode. The second capacitor electrode defines a second capacitor along with the third capacitor electrode. The second capacitor electrode is connected to the second terminal. A plurality of dielectric layers include a connection layer where a first portion of the first terminal and a second portion of the second terminal are disposed. An inductance of a path from the second capacitor electrode to the second portion is lower than an inductance of a path from the third capacitor electrode to the first portion.