Patent ID: 11875976
Assignee: AGC FLAT GLASS NORTH AMERICA, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A method of forming a thin film coating on a substrate comprising:
a) providing a first electrode and a second electrode separated by a gas containing space, wherein a macro-particle reduction coating is deposited on at least a portion of each of the first electrode and the second electrode;
b) supplying a power source to which the first and second electrodes are electrically connected, wherein the power source supplies a voltage that alternates between positive and negative, and wherein the voltage supplied to the first electrode is out of phase with the voltage supplied to the second electrode;
c) creating a current that flows between the first electrode and second electrode;
d) producing a plasma;
e) providing a substrate with at least one surface to be coated proximate to the plasma;
f) supplying a first gas through the space and energizing, partially decomposing, or fully decomposing the first gas; and
g) depositing the thin film coating on the at least one surface of the substrate, wherein the macro-particle reduction coating stabilizes the voltage of the plasma source by preventing drift of the voltage during operation of the plasma source, wherein the plasma source is provided with a power input greater than 20 kW per linear meter of plasma length, and wherein the macro-particle reduction coating stabilizes the voltage of the plasma source by preventing drift of the voltage to less than 10 volts during operation of the plasma source.