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US 9,752,242 B2Granted
Leveling additives for electrodeposition
AssigneeXtalic Corporation
InventorsJoshua Garth Abbott, Evgeniya Freydina
Life of this patent
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Abstract
Leveling additives, their use in electrodeposition, and regeneration are described. In one embodiment, an electrodeposition bath may include a non-aqueous liquid and an optionally substituted aromatic hydrocarbon. The optionally substituted aromatic hydrocarbon may be protonated.
Claims15
An electrodeposition bath comprising:
- a non-aqueous liquid, wherein the non-aqueous liquid is an ionic liquid;
- and
- an optionally substituted aromatic hydrocarbon, wherein the optionally substituted aromatic hydrocarbon is protonated.
A method comprising:
- electrodepositing a material in an electrodeposition bath, wherein the electrodeposition bath includes a non-aqueous liquid and an optionally substituted aromatic hydrocarbon, and
- wherein the non-aqueous liquid is an ionic liquid and the optionally substituted aromatic hydrocarbon is protonated.
A method for preparing an electrodeposition bath with a leveling additive, the method comprising:
- adding an optionally substituted aromatic hydrocarbon to a non-aqueous liquid, wherein the non-aqueous liquid is an ionic liquid;
- and
- protonating the optionally substituted aromatic hydrocarbon in the non-aqueous liquid.
A method comprising:
- adding protons to an electrodeposition bath including a non-aqueous liquid and an optionally substituted aromatic hydrocarbon, wherein the non-aqueous liquid is an ionic liquid, and
- wherein the protons react with the optionally substituted aromatic hydrocarbon to form an optionally substituted protonated aromatic hydrocarbon.
A method for reducing the acidity of an electrodeposition bath, the method comprising:
- adding an optionally substituted aromatic hydrocarbon to a non-aqueous liquid, wherein the non-aqueous liquid is an ionic liquid, and, wherein the optionally substituted aromatic hydrocarbon reacts with one or more protons in the electrodeposition bath to form an optionally substituted protonated aromatic hydrocarbon.
An electrodeposition system comprising:
- an electrodeposition bath including
- a non-aqueous liquid, wherein the non-aqueous liquid is an ionic liquid;
- and
- an optionally substituted aromatic hydrocarbon, wherein the optionally substituted aromatic hydrocarbon is protonated;
- an anode at least partially immersed in the electrodeposition bath;
- and
- a cathode at least partially immersed in the electrodeposition bath.
4 more elements
Dependencies are inferred from the claim text.