Patent ID: 9322092
Filing Date: 2016-04-26
CPC Classification: C23C,H01J

Claim Text:
1. A sputtering apparatus comprising: a processing chamber configured to perform deposition processing; an exhaust chamber directly connected to the processing chamber; an exhaust device which evacuates the processing chamber through the exhaust chamber; a substrate holder which is placed in the processing chamber, and configured to place a substrate thereon; a target holder placed in the processing chamber; a shutter capable of moving to assume one of a shielding state in which the shutter shields a gap between the substrate holder and the target holder, and a retracted state in which the shutter is retracted from the gap between the substrate holder and the target holder; a driving unit configured to drive the shutter; a shutter accommodation unit having an opening portion through which the shutter is to be extended to the processing chamber and retracted from the processing chamber; and a gas introduction pipe configured to introduce a gas in the processing chamber through the opening portion of the shutter accommodation unit, wherein an exhaust port is formed between a periphery of the opening portion of the shutter accommodation unit and an inner wall of the exhaust chamber, wherein the shutter accommodation unit is placed in the exhaust chamber such that an exhaust region is formed outside the shutter accommodation unit and inside the exhaust chamber and the exhaust region is in communication with the exhaust device, and the shutter accommodation unit is sealed with respect to the exhaust chamber so that the gas introduced in the shutter accommodation unit does not pass from the shutter accommodation unit to the exhaust chamber and the gas flows into the processing chamber only through the opening portion, wherein the gas introduction pipe is arranged from an outside of the exhaust chamber to an inside of the shutter accommodation unit, and wherein a gas introduced from the gas introduction pipe in the shutter accommodation unit is introduced in the processing chamber through the opening portion of the shutter accommodation unit, the gas introduced in the processing chamber is exhausted by the exhaust device through the exhaust port and the exhaust region.