Super-hot-runs management system

Abstract

Our project's purpose is to reduce the cycle time of "push lots". Some lots must be pushed at a faster speed than normal lots. We refer to these lots as super-hot-runs. For example: If the customer's special requirements includes, pilot lot or FAB potential-lot, our project's purpose is to reduce the cycle times of "push lots" (Super-hot-runs, pilot, hot-lots) to ensure maximum customer satisfaction. According to our historical data, the cycle times of push lots were 1.0 days/layer before we started this project. We made a project goal : by reducing the C/T from 1.0 days/layer to 0.8 days/layer. We set the goal by analyzing the percentage of run, queue, hold. Then tuned a reasonable queue time SPEC to meet C/T target. Hold time reduction is also being dealt with in this project.