OEE reoprt- Overall equipment effectiveness

Let's come back introduce the report in manufacturing, the next is a very important report in MFG's daily life. The OEE report is evaluate and explain FAB daily operation useful tool. It looks like below picture shows.

(This picture is get from http://oeealert.com/index.html)

Each row means one equipment daily status.

Each color has it's own meaning, read means tool is not available (pls re-flash the KPI), green means the tool is running or idle, yellow one is tool are doing monitor.
In my company we have about 10 different type for each tool status. Like Tool hold, tool wait ENG handle, PM, Monitor,  Down, Lost, Up, off etc.

We have a daily meeting for reviewing the performance yesterday in the morning. The OEE report is MFG to explain the daily move lost major tool. In general, the daily move not meet the daily target have 2 reasons, 1st is tool abnormal, and the other is the WIP did not reach the target on time.

We hope the reason is 1st, we will check the OEE when we notice the move may not meeting the target. We will check the available time is higher than target. There are 90% in average, if it lower than 90%, we can count the move lost. Or we want to high light the tool performance is not good, we will summary the average tool up time for the abnormal cases. Off course the boss will check the tool up time and lost time to challenge you the DL operation behavior have any issues. You need a good story to convince your boss, it the lost time is higher than our goal.

OEE is a good report to explain the move gap, and to high light the tool performance have some issues.

OEE on WiKi:
Overall equipment effectiveness (OEE) is a hierarchy of metrics developed by Seiichi Nakajima in the 1960s to evaluate how effectively a manufacturing operation is utilized. It is based on the Harrington Emerson way of thinking regarding labor efficiency.The results are stated in a generic form which allows comparison between manufacturing units in differing industries. It is not however an absolute measure and is best used to identify scope for process performance improvement, and how to get the improvement. If for example the cycle time is reduced, the OEE will increase i.e more product is produced for less resource. Another example is if one enterprise serves a high volume, low variety market, and another enterprise serves a low volume, high variety market. More changeovers (set-ups) will lower the OEE in comparison, but if the product is sold at a premium, there could be more margin with a lower OEE.
OEE measurement is also commonly used as a key performance indicator (KPI) in conjunction with lean manufacturing efforts to provide an indicator of success. OEE can be illustrated by a brief discussion of the six metrics that comprise the system. The hierarchy consists of two top-level measures and four underlying measures.