Patent ID: 9245780
Filing Date: 2016-01-26
CPC Classification: H01L

Claim Text:
1. A vacuum processing apparatus comprising: a container of an atmospheric transfer chamber having a plurality of cassette stages disposed on a front side thereof, a cassette storing wafers to be processed being mounted on each of the cassette stages, a wafer being transferred within the container of the atmospheric transfer chamber; a lock chamber disposed behind the atmospheric transfer chamber; a row of containers of vacuum transfer chambers connected to each other behind the lock chamber, the wafer being transferred through a depressurized inside of the row of the containers of the vacuum transfer chambers; an intermediate chamber disposed between the containers of the vacuum transfer chambers, and coupled thereto, the wafer being mounted and stored therein; a first and second processing unit each of which comprises a processing chamber connected to left or right side walls of each of the containers on the row of containers of the vacuum transfer chambers, the wafer before processing being transferred into the first processing unit from the lock chamber through one of the vacuum transfer chambers along a going path for being processed in the first processing unit and being transferred out of the second processing unit after being processed therein into another one of the vacuum transfer chambers and returned to the lock chamber along a returning path; a bypass chamber disposed between a first processing unit and a second processing unit of the plurality of processing units and coupled thereto, the bypass chamber constituting a bypass path which is another transfer path for transferring the wafer from the first processing unit to the second processing unit and the bypass chamber comprising therein a robot which transfers the wafer along the bypass path via the bypass chamber; and a control unit which is configured to control transfer of the wafer so that the wafer before processing is transferred from the lock chamber into the first processing unit through the one of the vacuum transfer chambers along the going path, the wafer is transferred from the first processing unit after being processed therein to the second processing unit along the bypass path, and the wafer is transferred from the second processing unit after completion of processing therein into the another one of the vacuum transfer chambers and returned to the lock chamber via the one of the vacuum transfer chambers along the returning path.