Patent ID: 7229541

Claim:
An electrodeposition tank which circulates a processing solution, the processing solution tank circulating the processing solution in a first direction at an upper part of the processing solution tank and circulating the processing solution in a second direction opposite to the first direction at a lower part of the processing solution tank to generate an agitating flow, the processing solution tank comprising: at least one of a guide plate, located at an end of the processing solution tank downstream from a part of the processing solution flowing in the first direction, which reverses a flow of the processing solution by directing the flow of the processing solution towards a bottom of the processing solution tank, and a guide plate, located at an end of the processing solution tank which is downstream from a part of the processing solution flowing in the second direction, which reverses the flow of the processing solution by directing a flow of the processing solution toward a surface of the processing solution; and a swirl chamber which removes dust from the processing solution, comprising an inlet, a swirl generator formed opposite the inlet and having a substantially arcuate shape, and a dust discharge port.