Interleaved Power Line Structure for EMI Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Integrated circuits face electromagnetic interference (EMI) due to magnetic field coupling from power lines, affecting their operations and performance.
Innovation Solution
A power line structure is designed with a dielectric layer and conductive components where the power voltage component is interleaved with ground voltage components on the same side of the dielectric layer, confining magnetic field coupling within gaps between them to prevent EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If power lines are used to supply power voltage to integrated circuits, then power delivery is achieved, but electromagnetic interference (EMI) is generated affecting circuit operations
Solution Approach 1:
The power line is segmented into multiple sub-conductive components arranged in an interleaved pattern with ground lines. This segmentation divides the original single power line into multiple smaller conductive paths, reducing the overall magnetic field coupling effect and EMI generation while maintaining power delivery capability.
Solution Approach 2:
Ground lines are introduced as intermediary elements between the power line and other circuit elements. These ground lines act as shields that intercept and redirect electromagnetic fields, preventing EMI from affecting sensitive circuit operations while allowing power to be delivered through the interleaved structure.
2Area of stationary object
If power lines are placed close to other electrical elements for compact design, then space efficiency is improved, but magnetic field coupling and EMI increase
Solution Approach 1:
The power line and ground lines are merged into a single interleaved conductive structure that functions as both a power delivery system and an EMI shielding system. This combined structure maintains compact spacing while the integrated ground lines neutralize magnetic field coupling effects, allowing close placement without increased EMI.
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 configuration effectively prevents EMI to other electrical elements while maintaining a compact structure, as the magnetic field coupling is confined within specific gaps, thereby enhancing the operational stability of integrated circuits.
Implementation Method 1
magnetic field coupling generated by power lines causes electromagnetic interference (EMI) to other electrical elements
Data Source
AI summary
A power line structure includes a dielectric layer, a first conductive component, a second conductive component, and a third conductive component. The first conductive component is disposed at a first side of the dielectric layer. The second conductive component is disposed at the first side of the dielectric layer. The third conductive component is disposed at the first side of the dielectric layer and between the first conductive component and the second conductive component. Each of the voltage of the first conductive component and the second conductive component is equal to a ground voltage. The third conductive component is configured to receive a first power voltage.