Patent ID: 6605814
Filing Date: 2003-08-12
Classification: H01L

Abstract:
A resist curing device comprising:a workpiece stage having pin holes and a workpiece transfer pin within each pin hole for ascending/descending transport of a silicon wafer; a separate, removable plate placed upon an upper surface of the workpiece stage which is composed of a silicon-based material and supports a silicon wafer laid thereon; a workpiece retention device that vacuum adsorbs the silicon wafer laid on the plate; a light source unit that provides ultraviolet irradiation to cure a resist applied to the silicon wafer; and a workpiece temperature control device that at least one of heats and cools the silicon wafer supported on the plate; wherein the plate has an expansion coefficient substantially similar to that of the silicon wafer and further includes through-holes to allow the workpiece retention device to vacuum adsorb the silicon wafer through the plate, and a pin hole in the plate which is aligned with each said pin hole and transfer pin in the workpiece stage.