Dual-Surface Electronic Device Testing Contact Arm Alignment
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Solution Overview
Problem
Existing electronic device test apparatuses are unable to effectively test devices with input and output terminals on both main surfaces, as they are designed for devices with terminals on a single surface.
Innovation Solution
An electronic device handling apparatus with a contact arm, positioning means, and imaging systems to accurately position and align devices with terminals on both surfaces, allowing for precise contact between the device and sockets on the test head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single positioning system is used for devices with terminals on one surface, then the device complexity is reduced, but the system cannot handle devices with terminals on both surfaces
Solution Approach 1:
The positioning system is divided into two independent subsystems: a first positioning system for positioning the first socket relative to the first main surface, and a second positioning system for positioning the second socket relative to the second main surface. Each subsystem independently handles positioning for one surface, enabling the system to accommodate devices with terminals on both surfaces while maintaining manageable complexity through modular design.
2Adaptability or versatility
If two separate positioning systems are used for both surfaces, then the adaptability to test dual-surface devices is improved, but the device complexity increases
Solution Approach 1:
The contact arm is designed as a multi-functional component that can hold both the first socket and the second socket, and can position devices with terminals on one surface or both surfaces. This universal design reduces the need for completely separate systems while maintaining the capability to handle various device configurations.
3Manufacturing precision
If manual positioning is used, then the device complexity is minimized, but the positioning precision and contact accuracy deteriorate
Solution Approach 1:
The system replaces manual mechanical positioning with automated positioning systems that use imaging apparatus to detect terminal positions and calculate relative positions. This substitution of mechanical adjustment with automated optical-mechanical systems achieves high positioning precision while maintaining reasonable system complexity through integration.
4Manufacturing precision
If imaging and image processing are implemented for position calculation, then the positioning precision is improved, but the device complexity and processing time increase
Solution Approach 1:
The imaging apparatus captures images of the device terminals, and the image processing means automatically calculates the relative positions without requiring external measurement tools or manual intervention. The system uses its own imaging resources to self-determine positioning parameters, reducing the need for additional complex measurement equipment while achieving high precision.
Data Source
AI summary
An electronic device handling apparatus, which handles an electronic device under test having a first main surface provided thereon with first device terminals and a second main surface provided thereon with second device terminals, includes: a contact arm having a holding-side contact arm to which a first socket is attached and a suction pad which holds the electronic device under test; an alignment apparatus which positions the first socket and the electronic device under test; and the alignment apparatus which positions, with respect to a second socket, the electronic device under test being held by the suction pad and contacting the first socket, wherein the contact arm presses the second device terminals of the electronic device under test to the second socket.