Foldable Board With Flexible PCB Junctions for Signal Integrity
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Solution Overview
Problem
In data centers and other applications, the increasing complexity of computer boards leads to a higher number of connections between coupled boards, which occupies more space due to the use of cables and connectors, posing challenges in efficient space utilization and signal integrity, especially at higher frequencies.
Innovation Solution
A foldable board design featuring flexible printed circuit board junctions that allow board segments to be movably positioned while maintaining electrical connections, reducing the need for traditional connectors and cables, and enabling configurations that minimize space usage and maximize airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional connectors and cables are used to couple board segments, then electrical connections are established, but the occupied space increases and signal loss increases at high frequencies
Solution Approach 1:
The patent merges the electrical connection function directly into the board structure by integrating circuit traces onto the board surface, eliminating the need for separate connectors and cables. This integration reduces both the occupied space and signal loss by creating a continuous electrical pathway without intermediate connection points.
Solution Approach 2:
The patent replaces the mechanical connector and cable system with an integrated circuit trace system printed directly on the board. This substitution eliminates mechanical connection interfaces that cause signal loss and reduces the physical space required for connections.
2Adaptability or versatility
If board complexity increases with more connections, then functionality improves, but space occupation increases due to connectors and cables
Solution Approach 1:
The patent segments the board into multiple rigid board segments that can be independently configured and connected through flexible circuits. This segmentation allows complex functionality to be achieved through modular assembly without requiring proportionally increased space for connectors and cables.
Solution Approach 2:
The patent transitions from planar connections to three-dimensional folded configurations, allowing multiple board segments to be connected in a compact vertical arrangement. This dimensional change enables complex functionality while minimizing the horizontal occupied space.
3Volume of moving object
If flexible junctions are used to couple board segments, then space utilization improves and signal loss reduces, but manufacturing complexity increases
Solution Approach 1:
The patent changes the physical parameter of the circuit board by incorporating flexible circuit regions with different flexibility characteristics in specific areas. This allows the board to be manufactured as a single integrated structure that can bend and fold, achieving compact configurations without complex assembly of multiple rigid components.
Data Source
AI summary
A junction between two circuit board segments can be made using a flexible printed circuit board (PCB), permitting the two circuit board segments to be movably positioned with respect to one another, while maintaining electrical connections between the board segments through the junction. Such a design with flexible PCB junctions can allow a single, foldable board with multiple board segments to be used in place of a set of multiple circuit boards that must couple together using connectors and cables.