Plating apparatus

Abstract

Provided is a technique that ensures suppressing deterioration of plating quality of a substrate due to gas bubbles at an anode. A plating module 400 includes a plating tank 10 configured to house a plating solution, an anode 13 arranged in the plating tank 10, a substrate holder 20 configured to hold a substrate WF with a surface to be plated facing downward so as to be opposed to the anode 13, a membrane module 40 that includes a first membrane 41 partitioning an inside of the plating tank 10 into an anode chamber 11 and a cathode chamber 12 and a second membrane 42 arranged between the first membrane 41 and the anode 13, and a pipe member 31 communicating between a first region R1 below the anode 13 in the plating tank 10 and a second region R2 between the first membrane 41 and the second membrane 42.

Dependencies are inferred from the claim text.