Modular Pressing Device for Electronic Testing
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Solution Overview
Problem
Conventional electronic device testing apparatuses generate excessive downward surge forces that can damage high-precision chips, leading to potential cracks and operational issues, and require re-adjustment when worn or when testing different devices.
Innovation Solution
A modular pressing device with a non-exchangeable and exchangeable module system, utilizing a first downward force generating unit for steady force and a second unit with a fluid chamber and piston for adjustable stage downward forces, allowing for easy disassembly and installation, and incorporating a chip pick-and-place bar for precise force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a lift arm presses the electronic device directly, then the pressing operation is simple, but a downward surge force exceeding 2-3 times the rated force is generated which may break chips or form potential cracks
Solution Approach 1:
The pressing device is divided into multiple functional modules: a first downward force generating unit (non-exchangeable module) and a second downward force generating unit (exchangeable module). This segmentation allows each module to perform specific functions - the first module provides stable baseline force while the second module provides adjustable additional force, thereby eliminating the surge force problem while maintaining operational simplicity.
2Measurement precision
If the pressing device is worn or a different electronic device is installed, then testing accuracy may be affected, but re-adjustment and re-testing of downward force is required which consumes time
Solution Approach 1:
The second downward force generating unit is designed as an exchangeable module that can be quickly replaced or adjusted. This dynamic configuration allows the pressing device to adapt to different electronic devices or wear conditions by simply changing the module rather than performing complex re-adjustment procedures, thus maintaining testing accuracy while minimizing time loss.
Solution Approach 2:
The second downward force generating unit allows for parameter changes in the downward force applied to the electronic device. By exchanging modules with different force characteristics or adjusting parameters within a module, the system can optimize pressing force for different devices without time-consuming recalibration, thereby maintaining measurement precision while reducing adjustment time.
3Ease of operation
If a modular design with exchangeable modules is implemented, then ease of disassembly and installation is improved, but device complexity increases
Solution Approach 1:
The pressing device is segmented into a non-exchangeable first downward force generating unit and an exchangeable second downward force generating unit. This segmentation enables easy disassembly and installation of only the necessary module (the second unit) while keeping the main structure intact, thus improving ease of operation without significantly increasing overall device complexity.
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 modular device effectively generates stage downward forces of varying levels, reducing the risk of chip damage and simplifying the process of adjusting for different devices, ensuring consistent and efficient testing without excessive force.
Implementation Method 1
the second downward force generating unit applies a second downward force to the electronic device
Data Source
AI summary
A modular pressing device capable of generating stage downward forces is provided. The modular pressing device comprises a non-exchangeable pressing module and an exchangeable pressing module. The non-exchangeable pressing module includes a first downward force generating unit. The exchangeable pressing module includes a second downward force generating unit. The first downward force generating unit applies a first downward force to at least one of a testing seat and an electronic device through the exchangeable pressing module. The second downward force generating unit applies a second downward force to the electronic device. Thereby, the modular pressing device is capable to generate two different downward forces to reduce the downward surge force. In addition, as the exchangeable pressing module is worn, the exchangeable pressing module can be replaced quickly such that the maintenance cost can be effectively reduced and the stability of the apparatus can be enhanced.