Abstract
In recent years,and related product updates through the semiconductor element is the rapid development of the demand in the market and changes in the time course of the contraction are followed more short, the major semiconductor companies to the market demand, seek not only the number of shipments with the level of quality, on time and can quickly output is currently more important piece, so the product process cycle time, also began to become the focus of the project for more than a day, and in this study to explore the perspective of the device may cause a delay factor in product manufacturing, and semiconductor companies for the actual operation of the demonstration, to help decision makers to make proper arrangements for surface equipment spare parts, to avoid out unnecessary waste of time machine, in order to achieve the final product process requirements, and reduce the impact of productivity