Patent ID: 11869788
Assignee: EBARA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 9:
10. A substrate processing apparatus comprising:
a plurality of processing tanks arranged in series;
a partition wall defining a conveyance space extending along an arrangement direction outside the plurality of processing tanks;
a conveyance mechanism placed in the conveyance space, the conveyance mechanism being configured to convey a substrate between the processing tanks along the arrangement direction; and
an air guide duct provided so as to extend along the arrangement direction in the conveyance space, wherein
the air guide duct is connected with a fan filter unit,
each of the processing tanks is connected with an exhaust duct,
a plurality of openings are formed in the air guide duct, each opening facing a respective one of the plurality of processing tanks,
the fan filter unit is located at and connected with one lengthwise end of the air guide duct, and
each of the plurality of openings is formed to be relatively smaller in size as the openings proceed along the air guide duct in the direction towards said one lengthwise end of the air guide duct.