Patent ID: 6151796
Filing Date: 2000-11-28
Classification: F26B,H05K

Abstract:
A substrate drying device for eliminating air bubbles in a liquid application material applied to a surface of a substrate and drying the material, said substrate drying device comprising:a reduced pressure enclosure having an inside and comprising an airproof door provided at least at one position thereof wherein the inside of the reduced pressure enclosure is made a sealed state when said airproof door is closed;an exhaustion device for exhausting air inside of said reduced pressure enclosure, said exhaustion device comprising a reserve tank which has a volume capable of rapidly reducing a pressure of an internal volume of said reduced pressure enclosure to maintain a predetermined negative pressure; anda controller for controlling the driving of said exhaustion device by connecting said reserve tank to said reduced pressure enclosure, to attain a degree of vacuum in a range of from 260 to 360 mmHg (34663 to 47996 Pa) within a time to reach said degree of vacuum in a range of below 10 seconds and above 5 seconds, controlled by said controller, wherein said substrate is caused to be under a reduced pressure state to eliminate air bubbles in the application material and dry material after receiving said substrates into said reduced pressure enclosure and after closing said airproof door to make inside of said reduced pressure enclosure an airproof state by performing a rapid exhaustion of the inside of said reduced pressure enclosure by said exhaustion device.