Laser-Cut Contact Element for Fine-Pitch Testing
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Solution Overview
Problem
The increasing miniaturization of electronic parts, such as fine-pitch diodes, poses challenges for effective and cost-efficient testing due to the short contact distances, requiring quick, robust, and cost-effective testing devices that can accurately contact and characterize these components.
Innovation Solution
A contact element and unit are developed using a laser-cut conducting plate with tips connected by a separating area, allowing for precise and isolated electrical contact, which can be mounted on a contact holder for efficient testing, and a method involving laser cutting and bending to create semi-finished parts for contact pads, enabling precise and cost-effective contact solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional contacting devices are used for fine-pitch parts, then the contact distance can be reduced to accommodate miniaturization, but the testing cost and complexity increase significantly
Solution Approach 1:
The conducting plate is divided into multiple tips by laser cutting separating areas, allowing each tip to contact individual pads of fine-pitch parts. This segmentation enables the contact device to handle miniaturized components with reduced contact distances while maintaining manageable complexity through modular tip structures.
2Length of moving object
If conventional contacting devices are used for fine-pitch parts, then the contact distance can be reduced to accommodate miniaturization, but production costs increase
Solution Approach 1:
Traditional mechanical cutting methods are replaced with laser cutting technology to create the conducting plate with multiple tips. This substitution reduces manufacturing costs and complexity while enabling precise geometric configurations suitable for fine-pitch part contacting.
3Manufacturing precision
If the conducting plate is laser-cut into separate pieces to create contact tips, then precise contact points are achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The conducting plate is laser-cut into a semi-finished state with separating areas defined but not fully separated. This preliminary action allows the plate to be mounted on a holder first, then completed later, simplifying the overall manufacturing process while achieving the required precision for contact tips.
4Ease of operation
If the conducting plate is mounted before laser cutting, then positioning is easier, but the separating areas cannot be created until after mounting
Solution Approach 1:
The laser cutting process creates separating areas that are preliminary and incomplete at the mounting stage. This allows easy positioning and mounting of the conducting plate on the holder, with the precise separating areas being finalized in a subsequent laser cutting step after the plate is secured in its correct position.
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
This solution enables efficient and cost-effective testing of fine-pitch parts by providing robust, precise contact points that can be easily integrated into automatic test equipment, reducing production costs and improving testing accuracy.
Implementation Method 1
a laser-cut conducting plate, with the contour of the laser-cut conducting plates including at least two tips
Data Source
AI summary
A contact element for producing an electric contact has a laser cut conducting plate, with the contour of the laser cut conducting plate including at least two tips, which are embodied as contact tips for a contact pad of a part, connected to each other by a separating area, such that a one-piece semi-finished part is embodied.