Patent ID: 7927066

Claim:
A device, comprising: a particle capturing mechanism that is disposed inside a communicating pipe that is positioned between a processing chamber of a substrate processing apparatus and an exhaust system of the substrate processing apparatus so as to allow the processing chamber of the substrate processing apparatus and the exhaust system to communicate with each other, the exhaust system including at least one exhaust pump, wherein the particle capturing mechanism is positioned in the communicating pipe upstream of all exhaust pumps of the exhaust system that initiate exhausting from the processing chamber so that the particle capturing mechanism captures particles that rebound from the at least one exhaust pump of the exhaust system, wherein at least part of the communicating pipe is bent so as to form an inner wall thereof facing oppositely an intake opening of the exhaust pump from which the particles rebound, and wherein at least part of the particle capturing mechanism is disposed on the inner wall facing oppositely the intake opening such that the particle capturing mechanism follows a surface shape of the inner wall.