Modular Test Socket Contact Assembly for Fast Pogo Pin Replacement
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Solution Overview
Problem
Conventional test sockets for semiconductor packages face issues with high replacement costs and time due to the need to replace the entire pogo pin when individual components like the second plunger become contaminated or damaged, which disrupts testing efficiency and increases maintenance costs.
Innovation Solution
A modular design for the test socket where the contact part and elastic part are separated, allowing for easy replacement of damaged or contaminated components without disassembling the socket from the test board, using a contact part-module and elastic part-module that can be swapped quickly and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire pogo pin is replaced when the second plunger is contaminated or damaged, then the reliability of the test socket is restored, but the replacement cost and time increase significantly
Solution Approach 1:
The pogo pin is divided into separate components: the barrel (first portion) and the second plunger (second portion). The second plunger can be replaced independently without replacing the entire pogo pin, thus reducing replacement time and cost while restoring reliability. The modular design allows the second plunger to be extracted and replaced separately from the barrel and spring assembly.
2Reliability
If the entire pogo pin is replaced when the second plunger is contaminated or damaged, then the test accuracy is restored, but the maintenance cost increases
Solution Approach 1:
The pogo pin structure is segmented into replaceable second plunger and reusable barrel components. Only the contaminated or damaged second plunger needs to be replaced, not the entire pogo pin, thereby reducing material waste and maintenance costs while restoring test accuracy.
Solution Approach 2:
The second plunger is designed as a disposable or easily replaceable component that can be discarded when contaminated or damaged, while the barrel and spring are recovered and reused. This selective replacement approach reduces overall maintenance costs compared to replacing the entire pogo pin assembly.
3Ease of repair
If the test socket is disassembled from the test board for replacement, then the replacement process can be completed, but the testing efficiency decreases due to equipment interruption
Solution Approach 1:
The pogo pin components are designed for independent replacement. The second plunger can be accessed and replaced through the socket structure without completely disassembling the test socket from the test board, minimizing equipment interruption and maintaining testing efficiency while completing the replacement process.
Solution Approach 2:
The socket structure incorporates dynamic access mechanisms that allow the second plunger to be replaced while the test socket remains mounted on the test board. This enables maintenance operations without requiring full disassembly, thus preserving testing efficiency while completing necessary repairs.
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 design reduces downtime and maintenance costs by enabling on-site replacement of damaged parts, shortens the replacement time, and maintains testing efficiency by minimizing equipment interruption.
Implementation Method 1
a spring (132) disposed inside the barrel (131)
Data Source
AI summary
The test socket according to the present disclosure is configured to bring terminals of a device under test into contact with electrode pads of a test board, that generates a test signal, to electrically connect the device under test and the tester, the contact part-module configured to allow the contact part to be in an aligned state is separatably coupled to an upper side of the second lower housing of the test socket, so it is possible to easily replace the contact part with new one without separating the test socket from the test board.