Patent ID: 7189290
Filing Date: 2007-03-13
Classification: B08B,C23C

Abstract:
1. A method for cleaning a source gas introduction pipe used in a CVD apparatus, the source gas introduction pipe having an outer surface having contaminant adhering thereto, the contaminant mainly containing carbon powder and being formed during processes in which a plastic container is accommodated into a sealable deposition chamber having a function of an outer electrode, source gas is introduced from the source gas introduction pipe which is elevatably inserted into the plastic container and acts as an inner electrode, and the source gas is excited into plasma to form a CVD film on an inner surface of the plastic container, comprising: extracting the source gas introduction pipe from the plastic container after the CVD film is formed on the inner surface of the plastic container; spraying compressed air toward the outer surface of the source gas introduction pipe so as to remove the contaminant adhering to the outer surface; and sucking removed contaminant to exhaust the removed contaminant outside a system of the deposition chamber and to prevent the removed contaminant from being transferred to sides of the deposition chamber and the plastic container in which the CVD film is formed.