Parallel Conductive Plastic Surface for Connector Signal Integrity
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Solution Overview
Problem
The SI performance of conventional connectors is affected by the conductive plastic in their terminal assemblies, which impacts characteristic impedance, insertion loss, return loss, near-end crosstalk, and far-end crosstalk.
Innovation Solution
A terminal assembly with a conductive plastic surface parallel to the terminal body, integrated with a terminal insulation body and terminal assemblies, enhances the SI performance by optimizing the electromagnetic shielding and conduction within the connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conductive plastic is used in terminal assembly, then electromagnetic shielding and conduction functions are provided, but SI performance (signal integrity) is degraded due to irregular structural shape affecting characteristic impedance and crosstalk
Solution Approach 1:
The invention changes the geometric parameters of the conductive plastic, specifically making its surface parallel to the terminal body, to improve signal integrity performance while maintaining electromagnetic shielding and conduction functions
Solution Approach 2:
The conductive plastic is designed with different local characteristics: the surface facing the terminal body is made parallel to reduce interference, while other portions maintain conformal contact for shielding, creating localized quality variations to optimize different functions simultaneously
2Object-affected harmful factors
If conductive plastic conforms to terminal body shape, then electromagnetic shielding is improved, but signal integrity parameters such as characteristic impedance and insertion loss are adversely affected
Solution Approach 1:
The conductive plastic implements local quality differentiation where the surface adjacent to the terminal body is made parallel rather than conformal, reducing electromagnetic interference with signal terminals while maintaining shielding effectiveness through contact at strategic locations
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
Improves the SI performance of the board end connector by ensuring effective electromagnetic shielding and conduction, thereby enhancing the connector's signal integrity.
Implementation Method 1
The terminal assembly includes a conductive plastic disposed on one side of the terminal insulation body... realizing the functions of electromagnetic shielding and conduction
Implementation Method 2
The terminal assembly includes a conductive plastic disposed on one side of the terminal insulation body... realizing the functions of electromagnetic shielding and conduction
Data Source
AI summary
The present disclosure provides a terminal assembly and board end connector. The terminal assembly comprises a plurality of terminals, a terminal insulation body and a conductive plastic. Each of the terminals comprises a terminal body, a plugging end part and a connecting end part. The plugging end part and the connecting end part are provided at two ends of the terminal body. The terminal insulation body covers the plurality of the terminal bodies of the plurality of terminals. The conductive plastic is disposed on one side of the terminal insulation body. A surface of the conductive plastic close to the terminal body is parallel to the terminal body. The SI performance of the board end connector equipped with the terminal assembly of the present disclosure can be improved by paralleling a surface of the conductive plastic close to the terminal body to the terminal body.