Patent ID: 6217640
Filing Date: 2001-04-17
Classification: B01D,B08B,C23C,Y02C

Abstract:
An exhaust gas treatment apparatus for treating exhaust gases generated in diffusion and deposition processes in wafer production process, comprising:a main pipe including an inlet for receiving the exhaust gases, a heater surrounding the main pipe for heating the exhaust gases, a scraper located in the main pipe for scraping inside wall of the main pipe, a sprinkler located in a lower portion of the main pipe in a center thereof for providing cooling water to mix with the heated exhaust gases to form vapor and waste water, and an outlet for discharging the vapor and waste water;a U pipe having a pipe body, a first connector connecting with the outlet and a second connector which has a drain located thereunder, the first connector having an exit located thereunder;a discharge pipe connecting with the U pipe through the second connector, anda tank connecting with the U pipe through a third connector under the exit.