US3607681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallization of ceramics
Assignee: Hooker Chemical Corp
•
Filing: 1969-09-03
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Granted: 1971-09-21
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Expires: 1989-09-03
Abstract
Abstract A method of metallizing ceramics comprises applying to a ceramic substrate, a paste of ingredients comprising phosphorus sesquisulfide, a reducible metal salt and a volatile liquid, and heating the thus-treated substrate to a temperature sufficient to ignite the phosphorus sesquisulfide. The resulting treated surface can be electroless plated and/or electrolytically plated by conventional techniques.
Inventors
- 👤 Victor F G Cooke
- 👤 Sung Ki Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:38
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/1851; C23C18/1862; C23C18/1865; C23C18/1872; C23C18/1875; C23C18/1879; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K3/00; H05K3/10; H05K3/105
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
18 words
The process of claim 1 where the substrate is heated to a temperature of at least 110* C.
Claim 2
Dependent Claim
11 words
The process of claim 2 wherein the volatile solvent is water.
Claim 3
Dependent Claim
13 words
The process of claim 3 wherein the paste additionally contains a thickening agent.
Claim 4
Dependent Claim
12 words
The process of claim 4 wherein the thickening agent is hydroxyethyl cellulose.
Claim 5
Dependent Claim
12 words
The process of claim 4 wherein the thickening agent is polyethylene oxide.
Claim 6
Dependent Claim
17 words
The process of claim 1 wherein the paste is applied to the ceramic substrate in a pattern.
Claim 7
Dependent Claim
18 words
An article comprising a ceramic substrate having thereon a conductive coating produced by the process of claim 7.
Claim 8
Dependent Claim
27 words
A process wherein the substrate resulting from the process of claim 1 is subjected to electroless plating to deposit an electroless conductive coating on the treated substrate.
Claim 9
Dependent Claim
18 words
An article comprising a ceramic substrate having thereon a conductive coating produced by the process of claim 9.
Claim 10
Dependent Claim
26 words
A process wherein the treated substrate resulting from the process of claim 9 is electroplated to deposit an adherent metal coating on the electroless conductive coating.
Claim 11
Dependent Claim
18 words
An article comprising a ceramic substrate having thereon a conductive coating produced by the process of claim 11.
Claim 12
Dependent Claim
24 words
A process wherein the substrate resulting from the process of claim 1 is electroplated to deposit an adherent metal coating on the treated substrate.
Claim 13
Dependent Claim
18 words
An article comprising a ceramic substrate having thereon a conductive coating produced by the process of claim 13.
Claim 14
Dependent Claim
18 words
An article comprising a ceramic substrate having thereon a conductive coating produced by the process of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |