摘要:
Condensable materials, such as but not limited to tungsten fluoride (WF6), can be used deposit films in a chemical vapor deposition (CVD) process. Described herein are methods to collect and reuse the condensable materials that are unreacted in the production process rather than treat these materials as waste. In one embodiment, when a condensable material, such as gaseous WF6, is not supplied to the CVD reactor, it is redirected to a recovery cabinet for capture.