Tunable Hot-Melt Impedance Mold for High-Speed PCB Connectors
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Solution Overview
Problem
Current electrical connector compositions fail to provide tunable dielectric constants for better impedance matching between electrical components, hindering high-speed signal transmission.
Innovation Solution
A tunable hot melt adhesive composition with adjustable dielectric constant and viscosity is used to form an impedance mold, bridging the impedance difference between signal wires and a printed circuit board, optimizing signal transmission by minimizing propagation delay and crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hot melt adhesive compositions are used to interconnect electrical components, then the manufacturing process is simple, but the dielectric constant cannot be tuned to match the dielectric contact of components, resulting in poor impedance matching
Solution Approach 1:
The patent applies parameter changes by modifying the dielectric constant of the hot melt adhesive through compositional adjustments. The adhesive formulation is tuned to achieve a dielectric constant that matches the electrical components, enabling proper impedance matching for high-speed signal transmission while maintaining the simplicity of the hot melt application process
Solution Approach 2:
The patent uses composite materials by creating a customized hot melt adhesive composition with specific dielectric properties. The adhesive is formulated as a composite material that combines the ease of hot melt application with tailored dielectric characteristics to match the electrical components being interconnected
2Speed
If electrical components are interconnected for high-speed data transmission, then signal transmission speed increases, but impedance mismatch causes signal integrity issues and interference
Solution Approach 1:
The patent resolves the contradiction between high-speed transmission and signal integrity by changing the dielectric parameter of the adhesive material. The adhesive is formulated with a specific dielectric constant that matches the electrical components, ensuring proper impedance matching that maintains signal integrity even at high transmission speeds
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
The tunable hot melt adhesive composition ensures better impedance matching and signal performance by adjusting its dielectric constant and viscosity, enhancing signal integrity and reducing interference.
Implementation Method 1
A dielectric constant of the tunable hot melt adhesive composition is tuned to have a higher dielectric constant than the base material to be compatible with the desired signal performance characteristics
Implementation Method 2
A tunable hot melt adhesive composition with adjustable dielectric constant and viscosity is used to form an impedance mold, bridging the impedance difference between signal wires and a printed circuit board
Data Source
AI summary
An electrical connector assembly having a printed circuit board, signal wires, and an impedance mold. The signal wires transmit signals at a determined signal speed. The signal wires have ends which are connected to the printed circuit board. The impedance mold cooperates with the printed circuit and the signal wires. The impedance mold is formed from a tunable hot melt adhesive composition. A dielectric constant of the tunable hot melt adhesive composition is adjusted to be compatible with the desired signal performance characteristics of the signals transmitted over the signal wires to the printed circuit board.