International Business Machines Corporation

Ebara Corporation

Brett Baker

Hariklia Deligianni

Mizuki Nagai

Hiroyuki Kanda

Satoru Yamamoto

Keiichi Kurashina

Phillipe Vereecken

Koji Mishima

Panayotis Constantinou Andricacos

Keith Thomas Kwietniak

Ryoichi Kimizuka

A plating method is capable of mechanically and electrochemically preferentially depositing a plated film in fine interconnect recesses such as trenches and via holes, and depositing the plated film to a flatter surface. The plating method including: disposing a substrate having fine interconnect recesses such that a conductive layer faces an anode; disposing a porous member between the substrate and the anode; filling a plating solution between the substrate and the anode; and repeating a process of holding the conductive layer and the porous member in contact with each other and moving the conductive layer and the porous member relatively to each other, a process of passing an electric current between the conductive layer and the anode while keeping the conductive layer still with respect to the porous member, and a process of stopping the supply of the electric current between the conductive layer and the anode.

Plating apparatus and plating method

The present invention provides a plating apparatus for a substrate which can plate a substrate under uniform pressure without increasing a load to be applied while holding the entire surface of a porous member in contact with the surface, to be plated, of the substrate. The plating apparatus for a substrate, includes: a substrate holder for holding a substrate; a cathode unit having a seal member for abutting against and sealing, in a water-tight manner, a peripheral portion of a surface, to be plated, of the substrate held by the substrate holder, and a cathode electrode which is brought into contact with the substrate to supply current to the substrate. An anode which is vertically moveable is disposed in confronting relation to the surface, to be plated, of the substrate; a plating solution impregnated material is disposed between the anode and the surface, to be plated, of the substrate, the plating solution impregnated material being made of a water-retentive material; and a porous member is disposed between the plating solution impregnated material and the surface, to be plated, of the substrate. The plating solution impregnated material is constructed of a plurality of separate members.

Plating apparatus for substrate

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Yorktown Heights, NY, United States of America

Brett Baker