US4442134A
Expired / Lapsed
US
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Chemical deposition termination
Assignee: Intersil Corp
•
Filing: 1983-03-18
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Granted: 1984-04-10
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Expires: 2003-03-18
Abstract
Abstract A method of accurately terminating the coating of a substrate in an aqueous coating solution is disclosed. The method comprises removing the substrate into an organic displacement liquid which overlies the aqueous coating solution.
Inventors
- 👤 Werner Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:48
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/18; B05D3/00; B05D3/10; B05D3/107; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/945
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
59 words
A method of rapidly terminating the coating of a substrate immersed in an aqueous coating solution in a suitable vessel comprising transferring the substrate into a layer of organic displacement liquid which overlies the coating solution in said vessel, said displacement liquid and water each having a solubility in the other of at least about 0.5 percent by volume.
Claim 2
Independent Claim
59 words
A method of rapidly terminating the coating of a substrate immersed in an aqueous coating solution in a suitable vessel comprising transferring the substrate into a layer of organic displacement liquid which overlies the coating solution in said vessel, said displacement liquid and water each having a solubility in the other of at least about 0.5 percent by volume.
Claim 3
Dependent Claim
24 words
A method in accordance with claim 1, wherein the solubility of water in the displacement liquid is at least about 4 percent by volume.
Claim 4
Dependent Claim
26 words
A method in accordance with claim 2, wherein the solubility of water in the displacement liquid is from about 4 to about 10 percent by volume.
Claim 5
Dependent Claim
24 words
A method in accordance with claim 1, wherein the solubility of the displacement fluid in water is at least about 10 percent by volume.
Claim 6
Dependent Claim
26 words
A method in accordance with claim 4, wherein the solubility of the displacement fluid in water is from about 10 to about 30 percent by volume.
Claim 7
Dependent Claim
38 words
A method in accordance with claim 1, wherein the organic displacement liquid is a low molecular weight ketone or a mixture thereof with one or more members of the group consisting of lower alkyl esters and lower alkanes.
Claim 8
Dependent Claim
33 words
A method in accordance with claim 6, wherein the organic displacement is methyl ethyl ketone or a mixture thereof with one or more members of the group consisting of ethyl acetate and hexane.
Claim 9
Dependent Claim
16 words
A method in accordance with claim 7, wherein the organic displacement liquid is methyl ethyl ketone.
Claim 10
Independent Claim
100 words
A method of forming a coating of a material on a substrate comprising: (a) providing an aqueous solution of said material in a suitable vessel; (b) immersing the substrate in said solution; (c) introducing into the vessel an organic displacement liquid so that it forms a layer overlying the aqueous coating solution, said liquid and water each having a solubility in the other of at least about 0.5 percent by volume; and (d) when a predetermined amount of material has been deposited on the substrate, rapidly raising the substrate into the displacement liquid thereby terminating the coating of the substrate.
Claim 11
Independent Claim
100 words
A method of forming a coating of a material on a substrate comprising: (a) providing an aqueous solution of said material in a suitable vessel; (b) immersing the substrate in said solution; (c) introducing into the vessel an organic displacement liquid so that it forms a layer overlying the aqueous coating solution, said liquid and water each having a solubility in the other of at least about 0.5 percent by volume; and (d) when a predetermined amount of material has been deposited on the substrate, rapidly raising the substrate into the displacement liquid thereby terminating the coating of the substrate.
Claim 12
Dependent Claim
24 words
A method in accordance with claim 9, wherein the solubility of water in the displacement liquid is at least about 4 percent by volume.
Claim 13
Dependent Claim
26 words
A method in accordance with claim 10, wherein the solubility of water in the displacement liquid is from about 4 to about 10 percent by volume.
Claim 14
Dependent Claim
24 words
A method in accordance with claim 9, wherein the solubility of the displacement fluid in water is at least about 10 percent by volume.
Claim 15
Dependent Claim
26 words
A method in accordance with claim 10, wherein the solubility of the displacement fluid in water is from about 10 to about 30 percent by volume.
Claim 16
Dependent Claim
38 words
A method in accordance with claim 9, wherein the organic displacement liquid is a low molecular weight ketone or a mixture thereof with one or more members of the group consisting of lower alkyl esters and lower alkanes.
Claim 17
Dependent Claim
33 words
A method in accordance with claim 14, wherein the organic displacement is methyl ethyl ketone or a mixture thereof with one or more members of the group consisting of ethyl acetate and hexane.
Claim 18
Dependent Claim
16 words
A method in accordance with claim 15, wherein the organic displacement liquid is methyl ethyl ketone.
Claim 19
Dependent Claim
27 words
A method in accordance with claim 9, wherein the aqueous solution contains one or more silver salts and the coating being formed on the substrate is silver.
Claim 20
Dependent Claim
15 words
A method in accordance with claim 17, wherein the aqueous solution contains potassium silver cyanide.
Claim 21
Dependent Claim
26 words
A method in accordance with claim 17 wherein the substrate has on at least one surface a layer of germanium selenide, which layer receives the coating.
References Cited (Backward Citations)
US3473960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |