Patent ID: 8122848

Claim:
A manufacturing management system which allocates product lots to a plurality of external film forming apparatuses which form films on substrates by utilizing chemical solutions, said film forming apparatuses each comprising a correlation data creating unit which creates correlation data that is related to a quality of a chemical solution from data that is related to properties of the chemical solution including at least one of data on storage temperature for the chemical solution to be loaded therein and data on pressure applied to the chemical solution to be loaded therein, and a determining unit which determines on the basis of the correlation data whether or not the chemical solution holds expected quality thereof; said manufacturing management system determines for each of the external film forming apparatuses a margin of the chemical solution for the expected quality, based on a result of determination by the determining unit of the external film forming apparatus exterior thereto, and then decides priorities among the film forming apparatuses, based on the results of determination on the margins; wherein the correlation data creating unit is coupled to a first detector measuring an applied pressure of the chemical solution and providing data on a time period during which the pressure is applied to the chemical solution to receive the data on the time period from the first detector, and is further coupled to a second detector that measures a storage temperature of the chemical solution along with data on a time from an arbitrary time period to a time point when the chemical solution is utilized to receive the measured temperature and the data on the time period; and wherein the allocation is implemented by the decided priorities.