GB672260A - Improvements in the production of conducting layers upon electrical insulating materials - Google Patents
Improvements in the production of conducting layers upon electrical insulating materialsInfo
- Publication number
- GB672260A GB672260A GB1686749A GB1686749A GB672260A GB 672260 A GB672260 A GB 672260A GB 1686749 A GB1686749 A GB 1686749A GB 1686749 A GB1686749 A GB 1686749A GB 672260 A GB672260 A GB 672260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- pressure
- resin
- formaldehyde
- phenol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/102—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by bonding of conductive powder, i.e. metallic powder
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Laminated Bodies (AREA)
Abstract
In a process for coating an organic electrically insulating material with a layer of an electrical conductor, a coating of a finely divided conductor free from permanent binder is applied to the surface and subjected to heat and pressure, the temperature, pressure, and time being such that the particles of the conductor are caused to cohere and become at least partially embedded in the insulating material. The conducting material, which may be applied as a slurry in a volatile diluent, may be a good conductor, e.g. silver or copper, or a poor conductor, e.g. graphite or carbon black. The base material may be phenol-formaldehyde or aniline formaldehyde resin, an amino-plast resin, a polyvinyl resin, polythene, a styrene copolymer, or a phenol-formaldehyde condensation product with a minor proportion of vinyl chloride. A thermostat material may be used and a temperature of 200-250 DEG C. and pressure of 1000-2000 lb. per sq. inch employed. Specifications 638,149 and 672,255, [Group XXXVI], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1686749A GB672260A (en) | 1949-06-24 | 1949-06-24 | Improvements in the production of conducting layers upon electrical insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1686749A GB672260A (en) | 1949-06-24 | 1949-06-24 | Improvements in the production of conducting layers upon electrical insulating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB672260A true GB672260A (en) | 1952-05-21 |
Family
ID=10085113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1686749A Expired GB672260A (en) | 1949-06-24 | 1949-06-24 | Improvements in the production of conducting layers upon electrical insulating materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB672260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1262726B (en) * | 1957-10-15 | 1968-03-07 | Metachemical Processes Ltd | Metal matrix for the electroforming production of shaped bodies |
-
1949
- 1949-06-24 GB GB1686749A patent/GB672260A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1262726B (en) * | 1957-10-15 | 1968-03-07 | Metachemical Processes Ltd | Metal matrix for the electroforming production of shaped bodies |
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