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Web based rSPC (real-time statistical process control) system supporting XML protocol

Accurate process control in the manufacturing industry is essential to survive in the competitive market. Statistical process control (SPC) system has been widely used to satisfy the ever-increasing quality control requirements. However, most commercial products in the market are not flexible, semi-automatic, and difficult to interface with other tools. In this paper, we propose an advanced rSPC (real-time SPC) system which is based on the Web and supports XML protocol. We also provide a powerful graphic facility and an efficient file system to handle the data in real time. Even though the idea can be applied to any manufacturing system, our system is optimized to the semiconductor industry and TFT/LCD industry. The system is implemented in C++ and COM/DCOM, and shows a good result.