Modular Prober Assembly for Large Area Substrate Testing
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Solution Overview
Problem
The existing test systems for large area substrates, such as those used in flat panel display manufacturing, face challenges with handling, transfer, and storage due to the large size of prober assemblies, which are typically designed for specific configurations, leading to increased complexity and inefficiency.
Innovation Solution
A modular prober assembly with movable contact heads and adaptable frames that can independently position and align with substrates of varying configurations, allowing for efficient testing of multiple display layouts on a single system without the need for frequent reconfiguration or replacement of prober assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a prober assembly is sized equal to or greater than the dimensions of the substrate to test specific configurations, then testing coverage is improved, but handling, transfer, and storage challenges increase
Solution Approach 1:
The prober assembly is divided into multiple independently movable contact heads that can be positioned at different locations on the substrate. Each contact head can be moved independently to reach different testing areas, eliminating the need for a single large prober assembly to cover the entire substrate area.
Solution Approach 2:
The contact heads are made movable along the substrate surface, allowing dynamic repositioning to different testing locations. This dynamic capability replaces the static large-area prober assembly, enabling the same prober to test different configurations by moving contact heads to appropriate positions.
2Manufacturing precision
If prober assemblies are designed for specific product configurations, then testing precision is improved, but the number of prober assemblies needed increases
Solution Approach 1:
The prober assembly is designed with contact heads that can be positioned and configured for different product types and layouts. A single prober assembly can test multiple different flat panel display configurations by repositioning and reconfiguring the contact heads, eliminating the need for separate dedicated probers for each product type.
Solution Approach 2:
The contact heads can be dynamically repositioned and reconfigured to match different product specifications. This dynamic adaptability allows the same hardware to maintain testing precision across multiple product configurations without requiring physical replacement of the prober assembly.
3Adaptability or versatility
If multiple prober assemblies are maintained for different products, then adaptability is improved, but storage, transfer, and handling challenges increase
Solution Approach 1:
A single prober assembly with reconfigurable contact heads serves multiple product types and configurations. This universal design eliminates the need to store multiple separate prober assemblies for different products, significantly reducing storage space requirements while maintaining full adaptability to various flat panel display configurations.
Data Source
AI summary
An apparatus and method for testing large area substrates is described. The large area substrates include patterns of displays and contact points electrically coupled to the displays on the large area substrate. The apparatus includes a prober assembly that is movable relative to the large area substrate and/or the contact points, and may be configured to test various patterns of displays and contact points on various large area substrates. The prober assembly is also configured to test fractional sections of the large area substrate positioned on a testing table, and the prober assembly may be configured for different display and contact point patterns without removing the prober assembly from the testing table.