Chemical solution qualification method, semiconductor device fabrication method, and liquid crystal display manufacturing method

摘要

A method for qualifying a chemical solution is disclosed. This method (a) obtains the number of particles in a chemical solution for each size of the particles, and (b) predicts, for each size of the particles, the influence of the chemical solution on a device to be fabricated by using the chemical solution. The degree of influence of the chemical solution on the device is obtained by using the results of (a) and (b). The quality of the chemical solution is evaluated on the basis of the obtained result, and whether the chemical solution is good or bad is determined on the basis of the evaluation result. On the basis of the determination result, the chemical solution is qualified as a chemical solution for use in a fabrication step of the device.