Dual-Shielding Electrical Connector for EMI Reduction
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Solution Overview
Problem
Existing electrical connectors fail to effectively shield the contacting portions of contacts between IC packages and circuit boards, leading to negative impacts on signal transmission due to electromagnetic interference (EMI).
Innovation Solution
The electrical connector features a dual-shielding system, with a first insulating housing containing an L-shaped metal shielding member around the base portion of the contact and a second insulating housing with a metal shielding member around the contacting portion, both formed using Laser Direct Structuring (LDS) techniques, ensuring comprehensive shielding of the contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single shielding body is used in the first insulating housing, then the structure is simple, but comprehensive shielding of both base portion and contacting portion cannot be achieved
Solution Approach 1:
The unified shielding structure is segmented into two separate shielding bodies positioned in different insulating housings. This segmentation enables comprehensive EMI protection for both the base portion and contacting portion while maintaining reasonable structural complexity through modular design.
Solution Approach 2:
The shielding system employs a nested configuration where the first insulating housing with its shielding body contains the base portion, and the second insulating housing with its shielding body contains the contacting portion. This nested arrangement provides comprehensive shielding while organizing the complex structure in a compact, hierarchical manner.
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 dual-shielding system significantly reduces EMI, enhancing signal transmission reliability and effectiveness between IC packages and circuit boards.
Implementation Method 1
The first insulating housing comprises a first shielding member around the base portion of the contact while the second insulating housing comprises a second shielding member around the contacting portion of the contact
Data Source
AI summary
An electrical connector for electrically connecting an IC package to a circuit board includes a first insulating housing, a second insulating housing and a plurality of contacts received therein. The contact includes a base portion received in the first insulating housing, and a contacting portion extending upwardly from the base portion and received in the second insulating housing. The first insulating housing includes a first shielding member around the base portion of the contact while the second insulating housing includes a second shielding member around the contacting portion of the contact so that an electrical connector with improved shielding means is provided.