Test Socket Inelastic Housing Signal Integrity
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Solution Overview
Problem
Conventional test sockets face challenges in precise stroke control due to thickness and height tolerances, and they suffer from high-frequency signal interference and signal loss, particularly as the density of conductive parts increases and pitch decreases.
Innovation Solution
A test socket with an inelastic conductive housing and conductive parts oriented in an elastic insulating material, featuring a coaxial cable structure with insulating layers and a ground-connecting end part protruding from the housing to improve signal transmission and power supply characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rubber socket with electro-conductive particles is used, then electrical connection is achieved, but stroke control precision deteriorates due to thickness and height tolerances
Solution Approach 1:
The patent changes the material parameter from elastic rubber to inelastic electro-conductive material, which eliminates the thickness tolerance issue and enables precise stroke control while maintaining electrical connection reliability through the inelastic material's dimensional stability
Solution Approach 2:
The patent uses a composite structure combining inelastic electro-conductive material with electro-conductive particles, creating a material that maintains both electrical conductivity and dimensional stability for precise stroke control
2Productivity
If electro-conductive parts are arranged densely with decreased pitch, then connection density is improved, but high-frequency signal interference and signal loss increase
Solution Approach 1:
The patent introduces an inelastic electro-conductive material as an intermediary substance between electro-conductive parts, which provides a stable, non-resonant medium that reduces high-frequency signal interference while allowing dense arrangement of conductive parts
Solution Approach 2:
The patent changes the material parameter from elastic rubber to inelastic electro-conductive material, which reduces signal loss and interference by eliminating the elastic resonance that occurs in rubber materials at high frequencies
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 solution enables precise stroke control and minimizes high-frequency signal interference and loss, while maintaining stable signal transmission and power supply, even at high speeds.
Implementation Method 1
an inelastic electro-conductive housing formed of an inelastic electro-conductive material
Implementation Method 2
an electro-conductive part formed to have a configuration in which a plurality of electro-conductive particles are oriented in the thickness direction in an elastic insulating material
Implementation Method 3
the electro-conductive part for signal and the electro-conductive part for power being insulated by an insulating layer
Implementation Method 4
a ground-connecting end part is provided in the housing hole in which the electro-conductive part for grounding is disposed, provided between an upper and lower end portions of the housing hole, and formed by protruding the inelastic electro-conductive housing from an inner wall forming the housing hole
Data Source
AI summary
The present disclosure discloses a test socket according to the present disclosure including an inelastic electro-conductive housing formed of an inelastic electro-conductive material and provided with a plurality of housing holes passing therethrough in the thickness direction, each housing hole being formed at a position corresponding to each terminal of a device under test; and an electro-conductive part formed to have a configuration in which a plurality of electro-conductive particles are oriented in the thickness direction in an elastic insulating material, and comprising an electro-conductive part for grounding, an electro-conductive part for signal, and an electro-conductive part for power disposed in the housing holes, respectively, the electro-conductive part for signal and the electro-conductive part for power being insulated by an insulating layer.