Patent ID: 8540854

Claim:
An apparatus for plating a substrate, comprising: a substrate support member; a plating solution supply member disposed above the substrate support member, the plating solution supply member discharging a plating solution onto a plating surface of the substrate, the plating solution supply member includes: an enclosure having an inner space with opened lower portion and a fluid inlet; a positive electrode disposed in the inner space, the positive electrode providing positive ions into the plating solution; and an ion exchange membrane disposed below the positive electrode and above the opened lower portion, the ion exchange membrane being permeable only to the positive ions; a plating bath configured to receive the plating solution and immerse the substrate support member thereof; and a bowl configured to completely surround the plating bath and recover the plating solution overflowing from the plating bath, wherein the substrate support member includes a support plate to support the substrate and allow the plating solution to be applied onto the plating surface of the substrate.