Patent US4364792A successfully refreshed from Google Patents.
US4364792A
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Process for the production of adhesive metal layers on non-conductors especially synthetic resins
Assignee: SCHOELLER & Co ELEKTRONIK A CORP OF GERMANY GmbH
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Filing: 1980-04-18
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Granted: 1982-12-21
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Expires: 2000-04-18
Abstract
Abstract Known process for the metallization of non-conductors, particularly synthetic resins, by chemical deposition, evaporation, or sputtering operate with adhesion facilitating intermediate layers such as e.g. varnishes or pastes. There is not attained sufficient adhesiveness with these adhesion facilitators for many areas of use. Besides the adhesive facilitator can cause troubles in later processing. Therefore there is described a process in which the surface area to be coated is roughened by means of a preliminary etching before by the metallizing and wherein this surface area before the etching is exposed to a heavy ion radiation.
Inventors
- 👤 Ralf Gliem
- 👤 Reinhard Brandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:01
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/16; B05; B05D; B05D3/00; B05D3/06; B05D3/068; B05D7/00; B05D7/24; C; C23; C23C; C23C14/00; C23C14/02; C23C14/021; C23C14/022; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; B05D2201/00; B05D2201/02; B05D2350/00; B05D2350/30; B05D2350/33; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0872; B29K; B29K2063/00; B29K2067/00; B29K2069/00; B29K2079/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
In a process for the production of an adhesive metal coating on a non-conductor chemically, by evaporation in a vacuum or by sputtering through roughening, the region of the surface to be coated by means of an etching process before the metallization, the improvement comprising exposing the region of the surface to be coated before the etching process to heavy ion radiation, the heavy ions having a mass of at least 10 and an energy of greater than 0.1 meV per nucleon.
Claim 2
Dependent Claim
82 words
In a process for the production of an adhesive metal coating on a non-conductor chemically, by evaporation in a vacuum or by sputtering through roughening, the region of the surface to be coated by means of an etching process before the metallization, the improvement comprising exposing the region of the surface to be coated before the etching process to heavy ion radiation, the heavy ions having a mass of at least 10 and an energy of greater than 0.1 meV per nucleon.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein the non-conductor is a synthetic resin.
Claim 4
Dependent Claim
18 words
The process of claim 1 wherein the heavy ion radiation is produced by radiation of uranium with neutrons.
Claim 5
Dependent Claim
22 words
The process of claim 3 wherein there is irradiated a film or sheet of a polyimide, polyester, polycarbonate, epoxide resin or mica.
Claim 6
Dependent Claim
20 words
The process of claim 4 wherein after the etching the film or sheet is provided with an adherent copper coating.
Claim 7
Dependent Claim
15 words
The process of claim 5 wherein the etching is carried out with alkali metal hydroxide.
Claim 8
Dependent Claim
13 words
The process of claim 6 wherein the alkali metal hydroxide is sodium hydroxide.
Claim 9
Dependent Claim
13 words
The process of claim 4 wherein the etching is with sodium hydroxide solution.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |