Patent ID: 8945313
Filing Date: 2015-02-03
Classification: B08B,C23C

Abstract:
1. A vacuum exhaust method of a substrate processing apparatus including a vacuum processing chamber having therein a mounting table for mounting a target substrate thereon, the vacuum exhaust method comprising: opening the vacuum processing chamber to the atmosphere; covering a surface of the mounting table with a protection member; sealing the vacuum processing chamber; vacuum evacuating the sealed vacuum processing chamber; and adsorbing at least one of foreign substances and out-gases by the protection member, wherein the protection member includes: a base portion; a trap portion provided on a top surface of the base portion, the trap portion having a mesh structure, or a woven or a nonwoven fabric structure; and an adsorption portion provided on a bottom surface of the base portion, the adsorption portion facing the surface of the mounting table and adsorbing and detaching particles attached on the mounting table when the protection member covers the mounting table.