Patent ID: 8419859
Filing Date: 2013-04-16
Classification: C23C,H01J

Abstract:
1. A method of cleaning a plasma processing apparatus for processing a target in a process container, which is vacuum-evacuatable, using plasma, the method comprising: performing a first cleaning process by supplying a cleaning gas into the process container to generate plasma and maintaining the pressure in the process container at a first pressure, under which ions inside the process container perform more cleaning than do radicals inside the process container; and performing a second cleaning process by supplying a cleaning gas into the process container to generate plasma, maintaining the pressure in the process container at a second pressure, under which radicals inside the process container perform more cleaning than do ions inside the process container, and heating at least one of the group consisting of a sidewall of the process container and a holding stage on which the target is held at a temperature of 120° C. or more, the second pressure being higher than the first pressure.