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US 2012/0257364 A1Published application
Coated Electrical Assembly
AssigneeSemblant Limited
InventorsAndrew Simon Hall Brooks, Timothy Allan Von Werne
Life of this patent
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Abstract
An electrical assembly which comprises a substrate and a conformal coating deposited on at least one surface of the substrate by plasma polymerization of a compound of formula (I) and deposition of a resulting polymer of the compound of formula (I), and plasma polymerization of a fluorohydrocarbon and deposition of a resulting polymer of the fluorohydrocarbon, such that the resulting polymer of the compound of formula (I) and the resulting polymer of the fluorohydrocarbon create discrete layers of the conformal coating; wherein the compound of formula (I) is an organic compound.
Claims31
An electrical assembly comprising:
- a substrate, the substrate comprising an insulating material, at least one conductive track present on at least one surface of the substrate, and at least one electrical component connected to at least one of the at least one conductive track;
- and
- a conformal coating deposited on at least one surface of the substrate by:
- plasma polymerization of 1,4-dimethylbenzene and deposition of a resulting polymer of 1,4-dimethylbenzene onto the at least one surface of the substrate;
- and
- plasma polymerization of C3F6 and deposition of a resulting polymer of C3F6 onto the resulting polymer of 1,4-dimethylbenzene;
- wherein the conformal coating covers the at least one conductive track, the at least one electrical component, and the surface of the substrate on which the at least one conductive track and the at least one electrical component are located.
4 more elements
An electrical assembly comprising:
- (a) a substrate
- (b) a conformal coating deposited on at least one surface of the substrate by:
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I) onto the at least one surface of the substrate;
- wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- plasma polymerization of a first fluorohydrocarbon and deposition of a resulting polymer of the first fluorohydrocarbon onto the resulting polymer of the first compound of formula (I).
10 more elements
An electrical assembly comprising:
- (a) a substrate
- (b) a conformal coating deposited on at least one surface of the substrate by
- plasma polymerization of a first fluorohydrocarbon and deposition of a resulting polymer of the first fluorohydrocarbon onto the at least one surface of the substrate, and
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I) onto the resulting polymer of the first fluorohydrocarbon;
- wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl.
9 more elements
A method for conformally coating an electrical assembly, the method comprising:
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I) onto at least one surface of an electrical assembly, and
- plasma polymerization of a first fluorohydrocarbon and deposition of the resulting polymer of the first fluorohydrocarbon onto the resulting polymer of the first compound of formula (I);
- wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl.
7 more elements
A method for conformally coating an electrical assembly, the method comprising:
- plasma polymerization of a first fluorohydrocarbon and deposition of a resulting polymer of the first fluorohydrocarbon onto at least one surface of the electrical assembly, and
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I) onto the resulting polymer of the first fluorohydrocarbon.
- wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl.
7 more elements
An electrical assembly comprising:
- (a) a substrate
- (b) a conformal coating deposited on at least one surface of the substrate by:
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I), and plasma polymerization of a first fluorohydrocarbon and deposition of a resulting polymer of the first fluorohydrocarbon, such that the resulting polymer of the first compound of formula (I) and the resulting polymer of the first fluorohydrocarbon create discrete layers of the conformal coating;
- wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl.
8 more elements
A method for applying a conformal coating to an electrical assembly, the method comprising:
- plasma polymerization of a first compound of formula (I) and deposition of a resulting polymer of the first compound of formula (I), and plasma polymerization of a first fluorohydrocarbon and deposition of the resulting polymer of the first fluorohydrocarbon, wherein the resulting polymer of the first compound of formula (I) and the resulting polymer of the first fluorohydrocarbon create discrete layers within the conformal coating;
- and wherein:
- R1 represents C1-C3 alkyl or C2-C3 alkenyl;
- R2 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R3 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R4 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- R5 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl;
- and
- R6 represents hydrogen, C1-C3 alkyl or C2-C3 alkenyl.
6 more elements
Dependencies are inferred from the claim text.