US2008083624A1PendingUtilityA1
Electrolysis Plating System
Est. expiryOct 9, 2026(~0.2 yrs left)· nominal 20-yr term from priority
Inventors:Sang-Chul Kim
H10W 20/056H10P 14/47C25D 17/00C25D 5/007C25D 17/001C25D 17/007C25D 7/123
37
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Claims
Abstract
An electroplating apparatus and method are provided. The electrolysis plating apparatus includes an electrolytic cell, and copper electrode, a wafer electrode, and a magnetic field generator.
Claims
exact text as granted — not AI-modified1 . An electrolysis plating apparatus, comprising:
an electrolytic cell; a copper electrode provided in the electrolytic cell; a wafer electrode in the electrolytic cell and facing the copper electrode; and a first magnetic field generator spaced apart from a rear side of the copper electrode or the wafer electrode.
2 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator is spaced apart from the rear side of the wafer electrode.
3 . The electrolysis plating apparatus according to claim 2 , further comprising a second magnetic field generator spaced apart from the rear side of the copper electrode.
4 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator has a circular shape.
5 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator comprises at least two poles of the same polarity spaced apart in opposition to each other.
6 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator comprises an electromagnet.
7 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator comprises a permanent magnet.
8 . The electrolysis plating apparatus according to claim 1 , wherein the first magnetic field generator is capable of rotating.
9 . The electrolysis plating apparatus according to claim 1 , further comprising a power supply.
10 . The electrolysis plating apparatus according to claim 9 , wherein the copper electrode is electrically connected to a positive terminal of the power supply, and wherein the wafer electrode is electrically connected to a negative terminal of the power supply.
11 . An electrolysis plating method, comprising:
disposing a copper electrode in an electrolytic cell; disposing a wafer on a wafer electrode in the electrolytic cell such that the wafer faces the copper electrode; providing a first magnetic field generator spaced apart from a rear side of the copper electrode or the wafer electrode; and depositing copper ions on the wafer by operating the copper electrode and the wafer electrode and operating the first magnetic field generator.
12 . The electrolysis plating method according to claim 11 , wherein the first magnetic field generator is provided spaced apart from a rear side of the wafer electrode.
13 . The electrolysis plating method according to claim 12 , further comprising providing a second magnetic field generator spaced apart from a rear side of the copper electrode, and wherein depositing the copper ions on the wafer further comprises operating the second magnetic field generator.
14 . The electrolysis plating method according to claim 11 , wherein the first magnetic field generator has a circular shape.
15 . The electrolysis plating method according to claim 11 , wherein the first magnetic field generator comprises at least two poles of the same polarity spaced apart in opposition to each other.
16 . The electrolysis plating method according to claim 11 , wherein the first magnetic field generator comprises an electromagnet.
17 . The electrolysis plating method according to claim 11 , wherein the first magnetic field generator comprises a permanent magnet.
18 . The electrolysis plating method according to claim 11 , wherein operating the first magnetic field generator comprises rotating the first magnetic field generator.
19 . The electrolysis plating method according to claim 11 , further comprising providing a power supply.
20 . The electrolysis plating method according to claim 19 , wherein the copper electrode is electrically connected to a positive terminal of the power supply, and wherein the wafer electrode is electrically connected to a negative terminal of the power supply, and wherein operating the copper electrode and the wafer electrode comprises providing power from the power supply.Join the waitlist — get patent alerts
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