Patent ID: 6662466
Filing Date: 2003-12-16
Classification: B05D,G03F

Abstract:
A process for drying a polymeric material present on a substrate, comprising:selecting a process control system that includes a central processing unit (CPU) in communication with: (i) a plurality of temperature sensors, including a polymeric temperature sensor, an ambient temperature sensor, and a substrate temperature sensor, and (ii) a plurality of temperature controllers, including a polymeric temperature controller, an ambient temperature controller, and a substrate temperature controller; measuring a temperature of the polymeric material with the polymeric temperature sensor and an ambient temperature in the vicinity of the substrate with the ambient temperature sensor; determining a temperature of the substrate with the substrate temperature sensor; detecting a variation in the measured ambient temperature; and adjusting at least one of the substrate temperature, polymeric temperature and a substrate drying spin speed with the process control system in response to the detected variation in the measured ambient temperature.