摘要:
An extreme ultra violet (EUV) resist film is formed on a wafer W, and then a EUV light is radiated onto the EUV resist film formed on the wafer W so that a predetermined pattern is selectively exposed on the EUV resist film. Thereafter, a developing solution with a concentration of less than 2.38% by weight, whose temperature is adjusted to be 5° C. or higher and less than 23° C. in a supplying equipment group 138, is dispensed from a developing solution supply nozzle 133 to the EUV resist film formed on the wafer W so that the EUV resist film is subject to development. In such a case, a time period during which the developing treatment is performed using the developing solution may be set to fall within the range of 10 seconds or higher to less than 30 seconds. And then, pure water is supplied from a pure water supply nozzle 140 onto the wafer W to clean the wafer. The time period during which the pure water is supplied is set to fall within the range of 30 seconds or below.
摘要:
A PEB unit has a first heat plate and a second heat plate. After an exposure process for a resist film for EUV on a wafer and before a development process, the PEB unit heats the wafer through the first heat plate at a first heating temperature. A heating time through the first heat plate is not less than 10 seconds and not more than 30 seconds. Thereafter, the PEB unit heats the wafer through the second heat plate at a second heating temperature lower than the first heating temperature. A temperature difference between the first heating temperature and the second heating temperature is not less than 20° C. and not more than 60° C.
摘要:
A circulation system for a high refractive index liquid includes a first collecting section configured to collect a high refractive index liquid used in an immersion light exposure section; a first supply section configured to supply the high refractive index liquid collected in the first collecting section to a cleaning section as a cleaning liquid; a second collecting section configured to collect the high refractive index liquid used in the cleaning section; and a second supply section configured to supply the high refractive index liquid collected in the second collecting section to the immersion light exposure section, wherein the high refractive index liquid is circulated between the immersion light exposure section and the cleaning section.