Case Study Of Hitachi Global Storage Technology Shenzhen Co. Yield Management System

Start from early 1980's American Airline established yield management which contributed the company's continuously success, later on more and more industries were engage in the yield management team, especially for the Semi-Conduct industry, in 1990's yield management system was separated from quality management and got a deeply study, through fully implement the yield management system, product grew up quickly and the competitive capability and economic benefit of the company got improvement. This paper based on case study, taking Hitachi Global Storage Technology (Shen zhen) Ltd as background generally studied the yield management system. The economic performance of many modern production processes is substantially influenced by production yield, especially for the HDD area which mature yield is just around 50% area, it is more important. Experience data was showed: 1% yield improvement equal to 6% gross revenue increase and 2.5% labor cost reduction. Exclude that, yield also impact the capacity, WIP, Lead time and product quality of the company. From 1990 China start the Total Quality Management which improved Chinese company's market value. Paper focus on technical solution, from technical point of view, systematically introduced from data base establish, data mining, problem diagnose, analysis till solving and support function of yield management system. At the same time according to product life cycle and period providing personal suggestion on how to implement yield management method at each stage as a reference. In the end, forecast the future yield management direction.