Wafer Fab Real-time Dispatching System Design And Implementation

Recent years, with the rapid development in semiconductor industry, its production scale is continually expanding, increasingly complex manufacturing process. Semiconductor market with its high technical content, fine workmanship, original material cost is high, the exchange of information speed, short production cycle, the characteristics of the competition is fierce. Due to the complexity of semiconductor manufacturing process and professional is very strong, so the semiconductor manufacturing environment urgently need to be able to quick response of the actual status of the production scheduling method, reference ecosystem individual ants indirect communication, the characteristics of the optimized group cut into separate pheromone for the number of production factors, and then based on the equipment characteristics of the semiconductor manufacturing line, gives the imitation of pheromone mechanism of semiconductor fab line dynamic dispatching rules. The rules also takes into account the batch processing equipment and the batch processing equipment of the workpiece dynamic dispatching, has the ability to improve the whole semiconductor production line. According to actual production line of the model simulation results show that compared with the currently used on production line scheduling rules, the dynamic dispatching rules can better help us improve the performance of semiconductor production line, higher yield and on time delivery rate, and low production cycle.This thesis first analyzes the real-time dispatching system technology development status at home and abroad, expounds the functions of real-time dispatching system model and concept. Then elaborated the semiconductor manufacturing industry background, semiconductor related technologies and development trend. The application of real-time dispatching system of semiconductor industry characteristics, application technology and real-time dispatching system for semiconductor manufacturing efficient practical significance. Combined with the characteristics of the semiconductor industry discussed the real-time dispatching system semiconductor factory system architecture, function module and real-time dispatching system integration process and application effect.Based on the full understanding and analysis of the development of semiconductor and real-time dispatching system at home and abroad, puts forward a set of real-time dispatching system solutions and systems integration and test run, want to be able to effectively guide the factory production control, and raised the factory timely production capacity, improve the material flow, improve the production efficiency, so as to adapt to the needs of the development of the company.