Adjustable Test Adapter for QFN Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The limited availability of actuators for different electronic device sizes and forms leads to prolonged downtime and increased costs due to the need for multiple adapters during production testing, as existing actuators are dedicated to specific package sizes and forms.
Innovation Solution
An adjustable test apparatus with sliders and a clamp that can be mounted to a circuit board, allowing for adjustable positioning along multiple directions to accommodate various device sizes and shapes, enabling a single apparatus to test multiple devices without the need for multiple adapters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple dedicated actuators are maintained for different package sizes, then testing coverage is improved, but inventory costs and complexity increase
Solution Approach 1:
The test adapter is designed with adjustable sliders that can be repositioned along the adapter body to accommodate different QFN device package sizes. A single adapter body can test multiple package sizes (e.g., 3x3mm, 4x4mm, 5x5mm, 6x6mm) by adjusting the slider positions, eliminating the need for multiple dedicated actuators for each package size.
Solution Approach 2:
The adapter incorporates movable sliders that can be dynamically repositioned along the adapter body. The sliders are adjustable along slots or guides, allowing the test contacts to be repositioned to match different device lead patterns and package sizes, providing dynamic adaptability rather than static dedicated configurations.
2Measurement precision
If multiple dedicated actuators are maintained for different package sizes, then testing accuracy is improved, but downtime increases
Solution Approach 1:
The movable sliders can be quickly repositioned along the adapter body to match different device package sizes. This dynamic adjustment capability allows operators to switch between testing different QFN package sizes without waiting for dedicated actuators, significantly reducing downtime while maintaining testing accuracy through precise slider positioning.
Solution Approach 2:
The adapter body includes pre-configured slots or guides that define valid slider positions for different package sizes. Operators can quickly adjust sliders to the appropriate pre-defined positions based on the device being tested, eliminating the need for complex alignment procedures and reducing setup time while ensuring accurate contact alignment.
3Adaptability or versatility
If multiple dedicated actuators are maintained for different package sizes, then device compatibility is improved, but cost increases
Solution Approach 1:
A single adapter body with adjustable sliders can test multiple QFN device package sizes (3x3mm, 4x4mm, 5x5mm, 6x6mm, and other variations). The sliders can be repositioned to match different lead patterns and package dimensions, providing universal compatibility across multiple device types without requiring separate dedicated actuators for each package size.
Solution Approach 2:
The adapter is divided into modular components including the adapter body and separate movable sliders. Each slider can be independently positioned and adjusted, allowing flexible configuration for different device types. This segmentation enables a single adapter body to serve multiple device compatibility requirements through combinatorial slider arrangements.
Data Source
AI summary
A test apparatus includes a body, sliders and a clamp, where the body has an opening, first and second sliders have respective ends that face one another in the opening with positions of the first and second sliders adjustable along a first direction, third and fourth sliders have respective ends that face one another in the opening with positions of the third and fourth sliders adjustable along an orthogonal second direction, and the clamp is configured to apply a clamping force along a third direction to a device under test (DUT) positioned between the ends of the sliders, the third direction orthogonal to the first and second directions.