Method of in-situ cleaning for LPCVD teos pump

摘要

In one embodiment, the present invention relates to a method of cleaning a low pressure chemical vapor deposition apparatus having TEOS material build-up therein involving contacting the low pressure chemical vapor deposition apparatus with a composition containing at least one lower alcohol. In another embodiment, the present invention relates to a system for cleaning a low pressure chemical vapor deposition apparatus having TEOS material build-up therein, containing a supply of a composition comprising at least one lower alcohol; an injection port for introducing the composition comprising at least one lower alcohol into the low pressure chemical vapor deposition apparatus; and a pump/vacuum system for removing crystallized TEOS material build-up from the low pressure chemical vapor deposition apparatus.