Semiconductor Material Dispatching via Simulated Moving Paths
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Solution Overview
Problem
Semiconductor production lines face challenges in achieving better quality, lower manufacturing costs, and faster response times with existing dispatching systems, which affect yield and flexibility.
Innovation Solution
A method and apparatus for material dispatching in semiconductor production that involves obtaining a material listing and process sequence, determining current statuses, simulating and calculating multiple moving paths, selecting the most efficient path, and storing it in a dispatching queue for optimized material dispatching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing dispatching systems are used in semiconductor production lines, then basic material dispatching can be performed, but process efficiency and yield are insufficient
Solution Approach 1:
The system performs preliminary simulation and calculation of multiple moving paths before actual material dispatching. By pre-calculating the most efficient paths and storing them in a dispatching queue, the system avoids time-consuming decision-making during actual production, thereby improving process efficiency and reducing manufacturing time
Solution Approach 2:
The system dynamically determines current status of materials and adaptively selects moving paths based on real-time conditions. The dispatching system can adjust material movement sequences according to changing production states, optimizing process efficiency while minimizing manufacturing time
2Adaptability or versatility
If existing dispatching systems are used in semiconductor production lines, then basic material handling can be achieved, but flexibility and response capability are limited
Solution Approach 1:
The dispatching system is segmented into distinct functional modules: data acquisition for obtaining material listings and process sequences, status determination for inquiring material states, simulation and calculation for generating moving paths, and dispatching execution. This modular architecture improves response capability while managing system complexity through clear separation of concerns
Solution Approach 2:
The system continuously inquires about current status of materials and uses this feedback information to dynamically adjust moving path selections. The feedback mechanism enables the system to respond adaptively to changing production conditions, enhancing flexibility without requiring overly complex centralized control
Data Source
AI summary
A method for dispatching a material includes obtaining a material listing and a process sequence, inquiring about each material in the material listing to determine a current status of each material, according to the current status of each material and the process sequence, simulating and calculating a plurality of moving paths for materials in the material listing and recording process time efficiencies of the plurality of moving paths, using a moving path with a highest process time efficiency among the plurality of moving paths as a selected moving path and storing the selected moving path in a dispatching queue, and performing a dispatching on the materials, according to the selected moving path in the dispatching queue. Each moving path includes a collection of moving sequences of materials in the moving path on a line of time.