Vertical Differential Pair Connector for High-Density Signaling
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Solution Overview
Problem
Existing connector systems for high data rates are limited by susceptibility to cross-talk and density constraints, particularly in single-ended configurations, which require additional shielding or reduced data rates to ensure reliable signaling.
Innovation Solution
A connector design featuring a housing with a longitudinal slot and terminals configured as elongated loops on both sides, providing vertically aligned differential pairs and allowing for increased density without the need for additional shielding, while using surface mount technology to optimize terminal placement and impedance control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If single-ended signaling configuration is used, then more channels are available, but the system becomes more susceptible to cross-talk and requires additional shielding or lower data rates
Solution Approach 1:
The patent transitions from planar terminal arrangements to a three-dimensional configuration where terminals are positioned on both sides of a longitudinal slot, creating vertically aligned differential pairs. This spatial reorganization allows differential signaling to achieve higher channel density while maintaining immunity to cross-talk through the inherent noise rejection of differential pairs in a compact footprint.
Solution Approach 2:
The invention changes the signaling configuration parameter from single-ended to differential mode, and modifies the terminal geometry to elongated loops with length greater than width. These parameter changes enable the system to achieve both high channel count and low cross-talk susceptibility simultaneously by exploiting the noise-canceling properties of differential signaling.
2Quantity of substance
If terminal pitch is reduced to increase density, then signaling density improves, but tolerance issues prevent further improvements
Solution Approach 1:
The patent moves from two-dimensional terminal spacing to a three-dimensional arrangement with terminals on both sides of the slot, effectively utilizing vertical space. This allows signaling density to increase without further reducing the horizontal pitch between terminals, thereby avoiding the tolerance problems that arise from excessive pitch reduction.
Solution Approach 2:
The invention employs asymmetric terminal positioning relative to the slot, with terminals arranged in specific patterns on each side. This asymmetric configuration optimizes the balance between signaling density and manufacturing tolerance by distributing terminals in a pattern that maintains adequate spacing while maximizing channel count.
3Object-affected harmful factors
If differential signaling configuration is used, then cross-talk is reduced, but the density of signaling is lower compared to single-ended configurations
Solution Approach 1:
The patent achieves high-density differential signaling by utilizing three-dimensional space with terminals positioned on both sides of the longitudinal slot. This vertical alignment of differential pairs allows the system to pack more differential channels into the same footprint compared to conventional planar differential configurations, thereby increasing signaling density while maintaining the cross-talk immunity of differential pairs.
Data Source
AI summary
A connector includes terminals with contacts. In an embodiment the contacts are positioned in a vertical connector similar to an edge card connector but with a differential pair aligned in a vertical direction. Thus the connector can provide edge-coupled differential pair in a high-density configuration.