Electrodeposition system and method incorporating an anode having a back side capacitive element

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United States of America Patent

PATENT NO 9481940
SERIAL NO

14315390

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Abstract

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Disclosed are an electrodeposition system and method with an anode assembly comprising a capacitor comprising a first conductive plate (i.e., an anode) with a frontside having a surface exposed to a plating solution, a second conductive plate on a backside of the first conductive plate, and a dielectric layer between the two conductive plates. During a non-plating mode, a power source, having positive and negative terminals connected to the first and second conductive plates, respectively, is turned on, thereby polarizing the first conductive plate (i.e., the anode) relative to the second conductive plate to prevent degradation of the anode and/or plating solution. During an active plating mode, another power source, having positive and negative terminals connected to the first conductive plate (i.e., the anode) and a cathode, respectively, is turned on, thereby polarizing the anode relative to the cathode in order to deposit a plated layer on a workpiece.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504
ANCOSYS GMBH72124 PLIEZHAUSEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arvin, Charles L Poughkeepsie, US 153 801
Stahl, Jürg Winterthur, CH 3 3

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