A computer implemented method for development profile simulation in
accordance with an embodiment of the present invention includes
calculating optical intensities in a photosensitive resist, calculating a
spatial average value of the optical intensities, reading a measured
changing ratio of a dissolution rate of the photosensitive resist
relating to an alkaline concentration changed by at least one of exposure
dose on the photosensitive resist, a position in the thickness direction
of the photosensitive resist and an alkaline concentration of developer
for the photosensitive resist, obtaining a calculated dissolution rate by
using the spatial average value and the measured changing ratio, and
predicting a pattern shape of the photosensitive resist from the
calculated dissolution rate.