Patent ID: 7902485

Claim:
A temperature setting method of a thermal processing plate for mounting and thermally processing a substrate thereon, the method comprising: performing the thermal processing in a photolithography process of forming a resist pattern on the substrate, the resist pattern including a plurality of lines, wherein the thermal processing plate is divided into a plurality of regions and the temperature for each of the regions is settable; setting a temperature correction value for adjusting a temperature within the substrate on the thermal processing plate for each of the regions of the thermal processing plate after calculation by a calculation model created from a correlation between a line width of the lines of the resist pattern formed by thermal processing on the thermal processing plate and the temperature correction value, wherein the line width of the lines of the resist pattern is measured at a plurality of line width measurement points on the substrate; obtaining variation tendency components from a tendency of variations in values of the line width measurement within the substrate presented by describing, in a height direction, the values of the line width measurement and projecting the values onto a plane vertical to the substrate surface, the variation tendency components including (i) a gradient component in an X-direction within the substrate, (ii) a gradient component in a Y-direction perpendicular to the X-direction within the substrate, and (iii) a curvature component within the substrate, wherein the calculation model calculates the temperature correction value to decrease the variation tendency components, based on a line width measured value of the lines of the resist pattern within the substrate; and adjusting the temperature of each of the plurality of regions based on the respective temperature correction value.