Electrical Contactor Cantilever Beam High Temperature Stability
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Solution Overview
Problem
Conventional electrical connecting apparatuses with elastomer biasing members deteriorate at high temperatures, leading to reduced contact load and positioning accuracy issues during electrical tests of integrated circuits.
Innovation Solution
The apparatus features electrical contactors with cantilever beam structures and positioning portions, formed from conductive materials, which maintain reliable contact and positioning accuracy even at high temperatures by using a planar body with upper and lower arms and insulating members for improved thermal stability and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an elastomer biasing member is used to support electrical contactors, then the contact load is maintained under normal temperature conditions, but the biasing member deteriorates under high temperature environments causing reduced contact load
Solution Approach 1:
The patent removes the elastomer biasing member from the system entirely and replaces it with a spring member having a cantilever beam structure. This extraction eliminates the temperature sensitivity issue of elastomers while maintaining the necessary contact load through the metal spring's inherent elastic properties.
Solution Approach 2:
The patent substitutes the elastomer-based mechanical biasing system with a metal spring-based cantilever beam structure. This replacement transitions from a polymer mechanical system to a metal mechanical system, providing superior high-temperature performance while maintaining the biasing function through elastic deformation of the cantilever beam.
2Measurement precision
If electrical contactors are attached to an electrical connecting apparatus, then electrical testing can be performed, but positioning accuracy of the contactors deteriorates under high temperature conditions
Solution Approach 1:
The patent divides the electrical contactor into segmented components: a body portion, an upper arm with cantilever beam structure, and positioning portions. This segmentation allows the positioning portions to be independently optimized for high-temperature stability while the cantilever beam structure maintains contact load, resolving the contradiction between positioning accuracy and temperature stability.
Solution Approach 2:
The patent applies different structural qualities to different parts of the contactor: the positioning portions are designed with specific geometries (extending upward from the body) to maintain positioning accuracy, while the upper arm employs a cantilever beam structure for elastic deformation and contact load maintenance. This local optimization resolves the temperature-stability contradiction.
3Ease of manufacture
If a simple conductive member is used for the contactor body, then manufacturing is easy, but positioning accuracy and contact reliability are insufficient
Solution Approach 1:
The patent merges multiple functions into the single conductive member structure: the body portion provides structural support, the upper arm with cantilever beam structure provides both positioning and contact load maintenance, and the positioning portions ensure accurate alignment. This integration achieves high reliability without requiring multiple separate components, maintaining ease of manufacture.
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
Enables reliable electrical testing under high-temperature environments with enhanced positioning accuracy and sustained contact load, addressing the limitations of conventional systems.
Implementation Method 1
an upper arm having a cantilever beam structure, including an upper base extending integrally and continuously upward from the body portion, an upper supporting portion extending in a horizontal direction from the upper base along the body portion, and a first distal end extending vertically upward from the upper supporting portion to make electrical contact with a first contact target; a lower arm having a cantilever beam structure
Data Source
AI summary
An electrical contactor capable of coping with an electrical test under a high temperature environment and realizing reliable positioning is provided.An electrical contactor includes: a planar body portion formed of a conductive member; an upper arm having a cantilever beam structure, including an upper base extending integrally and continuously upward from the body portion, an upper supporting portion extending in a horizontal direction from the upper base along the body portion, and a first distal end extending vertically upward from the upper supporting portion to make electrical contact with a first contact target; a lower arm having a cantilever beam structure, including a lower base extending integrally and continuously downward from the body portion, a lower supporting portion extending in a horizontal direction from the lower base along the body portion, and a second distal end extending vertically downward from the lower supporting portion to make electrical contact with a second contact target; a first positioning portion extending upward from one end of the body portion; and a second positioning portion extending upward from near the other end of the body portion.