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 42:
43. A method of forming a thin film coating on a substrate comprising:
a) providing an electrode positioned in a plasma source device having a first plasma-generating surface, wherein a macro-particle reduction coating is deposited on at least a portion of the first plasma-generating surface of the electrode, wherein the plasma source is configured to perform plasma-enhanced chemical vapor deposition;
b) supplying a power source to which the electrode is electrically connected, wherein the power source supplies a voltage that alternates between positive and negative, and wherein the voltage is supplied to the electrode;
c) producing a plasma;
d) providing a substrate with at least one surface to be coated proximate to the plasma;
e) supplying a first gas through a space and energizing, partially decomposing, or fully decomposing the first gas; and
f) depositing the thin film coating on the at least one surface of the substrate, wherein the depositing includes one of bonding and condensing a chemical fragment of the first gas containing a desired chemical element for 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, and 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.