Wafer Pickup Position Tracking for Reliable Component Mounting
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Solution Overview
Problem
Existing information management devices in mounting systems fail to effectively manage information to quickly identify and prevent component failures before inspection results are available, leading to potential rework and decreased efficiency.
Innovation Solution
An information management device that acquires and stores pickup position information and usability determination results for components picked up from a wafer, allowing for the association of these data points to identify trends and prevent further failures by skipping unusable positions during the mounting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If components are mounted on base material before inspection results are available, then productivity is improved, but reliability deteriorates due to potential mounting of defective components
Solution Approach 1:
The system performs preliminary actions by determining component usability before mounting occurs. The usability determination unit assesses component quality in advance, and the skipping unit prevents mounting of components deemed unusable, thereby resolving the contradiction between mounting speed and reliability.
Solution Approach 2:
The system implements feedback mechanisms where inspection results and usability determinations are fed back to control the mounting process. The information management unit tracks pickup positions and usability status, providing feedback to skip problematic positions and maintain reliability while preserving productivity.
2Reliability
If pickup position information is associated with usability determination results, then reliability is improved by identifying defective components, but device complexity increases due to additional information management
Solution Approach 1:
The information management unit performs multiple functions: storing pickup position information, recording usability determination results, associating these data points, and providing feedback for skipping. This multi-functionality reduces overall system complexity by consolidating operations into a single unit.
Solution Approach 2:
The system is self-service in that it automatically manages its own information requirements. The usability determination unit and information management unit work together to self-regulate the mounting process, eliminating the need for external complex management systems.
3Reliability
If inspection results are used to determine usability, then reliability is improved, but loss of time increases due to waiting for inspection results
Solution Approach 1:
The system performs usability determination as a preliminary action before mounting occurs. By assessing component quality in advance and using this information to control the mounting process, the system eliminates waiting time while maintaining reliability.
Solution Approach 2:
The skipping unit rapidly identifies and excludes problematic components from the mounting process. By skipping unusable components and their associated inspection waits, the system reduces time loss while preserving the reliability benefits of inspection.
Data Source
AI summary
An information management device for managing information in a mounting system that mounts a component after determining usability of the component when the component is picked up from a wafer divided into multiple components and is mounted on a base material, includes an information storage section that stores various types of information, an information acquisition section that acquires information on a pickup position of the component on the wafer and information on a determination result of usability of the component, and an information processing section that stores information obtained by associating the pickup position of the component with the determination result of the usability in the information storage section.