Patent ID: 6033989
Filing Date: 2000-03-07
Classification: B01D,H01L

Abstract:
A device for concentrating chemical substances for fabrication of a semiconductor device, comprising:a sample container for holding chemical substances therein;a feed tube in gas flow communication with the sample container at a feed opening, for introducing a carrier gas into the sample container;a vapor outlet in gas flow communication with the sample container at an outlet opening, for discharging a mixture of a vapor and the carrier gas;a sample heater for heating the chemical substances in the sample container to a first temperature, disposed above and apart from the sample container;a gas source for supplying the carrier gas;a gas heater in gas flow communication with the gas source and in gas flow communication with the feed tube, for heating the carrier gas to a second temperature;a condenser in flow communication with the vapor outlet for producing a liquid from the vapor; anda collecting container in flow communication with the condenser for collecting the liquid.