Annular Conductor Circuit Structure for Impedance Matching
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Solution Overview
Problem
Conventional circuit structures face challenges in efficiently transmitting electrical signals across different layers due to non-uniform electric fields and impedance mismatches between conductive lines and vias, leading to signal loss and reflection issues.
Innovation Solution
The proposed circuit structure incorporates an annular conductor, extension conductors, and a conductive via, with the extension conductors electrically insulated from the via, creating a uniform electric field and matching impedance, thereby optimizing signal transmission across layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conductive lines and vias are used for signal transmission across layers, then the circuit structure is simple, but non-uniform electric fields and impedance mismatches occur leading to signal loss and reflection
Solution Approach 1:
The conductive structure is segmented into multiple functional parts: an annular conductor divided into first and second conductive portions, extension conductors, and a via conductor. This segmentation allows each part to be optimized for its specific function, creating uniform electric fields and matching impedance across the signal transmission path, thereby reducing signal loss and reflection.
Solution Approach 2:
The patent transitions from conventional linear conductive lines to a three-dimensional annular conductor structure with vertical via connections. This dimensional change enables the creation of a more uniform electric field distribution and better impedance control by utilizing both horizontal and vertical spatial dimensions for signal transmission.
2Reliability
If extension conductors are added to connect the annular conductor to the via, then impedance matching and signal transmission are improved, but the device complexity increases
Solution Approach 1:
The extension conductors merge the annular conductor structure with the via conductor to form a continuous, optimized signal transmission path. This merging ensures impedance matching by smoothly transitioning the signal from the horizontal annular conductor to the vertical via, eliminating discontinuities that would cause reflection and improving overall reliability.
Data Source
AI summary
A circuit structure includes an annular conductor, a conductive via and at least one extension conductor. The annular conductor extends along a direction. The conductive via is disposed in the annular conductor and extending along the direction. The at least one extension conductor is electrically connected to at least one end of the annular conductor and extending toward the conductive via.