US4512855A
Expired / Lapsed
US
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Deposition of metals as interlayers within organic polymeric films
Assignee: EIDP Inc
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Filing: 1984-07-23
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Granted: 1985-04-23
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Expires: 2004-07-23
Abstract
Abstract Metal interlayer deposition process for depositing a metal in its zero-valent state in a spatially-controlled manner within an organic polymeric film.
Inventors
- 👤 Stephen Mazur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:45
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/54; C25D5/56; C23; C23C; C23C28/00; H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/188; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
134 words
Metal interlayer deposition process by means of which a metal is deposited in its zero-valent state in a spatially-controlled manner within an organic polymeric film having first and second surfaces, the process comprising supplying ions of the metal to at least a part of the first surface and electrons to at least a part of the second surface, the metal ions being in a positive oxidation state and in a coordination state such that they are mobile within the polymeric film and are transported through the film in a general direction toward the second surface, the polymeric film being capable of accepting electrons in a reversible manner at the second surface, and the electrons being mobile within the polymeric film and being transported through the film in a general direction toward the first surface.
Claim 2
Dependent Claim
134 words
Metal interlayer deposition process by means of which a metal is deposited in its zero-valent state in a spatially-controlled manner within an organic polymeric film having first and second surfaces, the process comprising supplying ions of the metal to at least a part of the first surface and electrons to at least a part of the second surface, the metal ions being in a positive oxidation state and in a coordination state such that they are mobile within the polymeric film and are transported through the film in a general direction toward the second surface, the polymeric film being capable of accepting electrons in a reversible manner at the second surface, and the electrons being mobile within the polymeric film and being transported through the film in a general direction toward the first surface.
Claim 3
Dependent Claim
34 words
Process of claim 1 wherein the electrons are provided by the cathode in an electrochemical circuit, the potential applied to the cathode being equal to or negative of the reduction potential of the polymer.
Claim 4
Dependent Claim
33 words
Process of claim 1 wherein the electrons are provided by a reducing agent in solution, the oxidation potential of the reducing agent being negative with respect to the reduction potential of the polymer.
Claim 5
Dependent Claim
19 words
Process of claim 1 wherein the metal is deposited as spherical particles having diameters no greater than 500 A.
Claim 6
Dependent Claim
19 words
Process of claim 1 wherein the metal is deposited as spherical particles having diameters within the range 50-300 A.
Claim 7
Dependent Claim
22 words
Process of claim 1 wherein the metal is deposited as a continuous layer having a thickness of 500 A to 10,000 A.
Claim 8
Dependent Claim
16 words
Process of claim 5 wherein the polymeric film has a thickness within the range 2-12 μm.
Claim 9
Dependent Claim
30 words
Process of claim 1 wherein the metal ions are provided in solution and the metal is selected from Cu, Ag, Au, Cd, Hg, Cr, Co, Ni, Pd, Pt and Sn.
Claim 10
Dependent Claim
18 words
Process of claim 7 wherein the metal is Ag and the polymeric film is comprised of a polyimide.
Claim 11
Dependent Claim
18 words
Process of claim 7 wherein the metal is Cu and the polymeric film is comprised of a polyimide.
Claim 12
Dependent Claim
18 words
Process of claim 7 wherein the metal is Au and the polymeric film is comprised of a polyimide.
Claim 13
Dependent Claim
18 words
Process of claim 7 wherein the metal is Hg and the polymeric film is comprised of a polyimide.
Claim 14
Dependent Claim
25 words
Process of claim 2 wherein the cathode comprises an electrically-conductive two-dimensional pattern separated by insulating regions, and the deposited metal corresponds to the two-dimensional pattern.
Claim 15
Dependent Claim
27 words
Process of claim 2 wherein the organic polymer film is laminated with an electrically insulative film having patterned openings through which the ions of the metal flow.
Claim 16
Dependent Claim
36 words
Process of claim 1 wherein the fluxes of metal ions and electrons are maintained constant during a substantial period of the process so as to generate an interlayer with the maximum achievable density of metal particles.
Claim 17
Dependent Claim
37 words
Process of claim 1 wherein the fluxes of metal ions and electrons are varied systematically during a substantial period of the process so as to generate an interlayer of controlled density, lower than the maximum achievable density.
Claim 18
Dependent Claim
18 words
Process of claim 9 wherein the polymeric film is comprised of a polyimide of 4,4'-oxydianiline and pyromellitic dianhydride.
Claim 19
Dependent Claim
18 words
Process of claim 10 wherein the polymeric film is comprised of a polyimide of 4,4'-oxydianiline and pyromellitic dianhydride.
Claim 20
Dependent Claim
18 words
Process of claim 11 wherein the polymeric film is comprised of a polyimide of 4,4'-oxydianiline and pyromellitic dianhydride.
Claim 21
Dependent Claim
18 words
Process of claim 12 wherein the polymeric film is comprised of a polyimide of 4,4'-oxydianiline and pyromellitic dianhydride.
Claim 22
Dependent Claim
28 words
Film structure comprising an organic polymeric film within which is a metal interlayer which has been formed without any substantial change in the discrete dimensions of the film.
Claim 23
Dependent Claim
28 words
Film structure comprising an organic polymeric film within which is a metal interlayer which has been formed without any substantial change in the discrete dimensions of the film.
Claim 24
Dependent Claim
23 words
Film structure of claim 21 wherein the metal interlayer is comprised of spherical particles having diameters no greater than 500 A (0.05 μm).
Claim 25
Dependent Claim
20 words
Film structure of claim 22 wherein the diameter of the spherical particles is within the range 50-300 A (0.005-0.03 μm).
Claim 26
Dependent Claim
26 words
Film structure of claim 21 wherein the interlayer has a thickness of 500-10,000 A (0.05-1 μm) and the polymeric film has a thickness of 2-12 μm.
Claim 27
Dependent Claim
23 words
Film structure of claim 21 wherein the metal is selected from Cu, Ag, Au, Cd, Hg, Cr, Co, Ni, Pd, Pt and Sn.
Claim 28
Dependent Claim
14 words
Film structure of claim 25 wherein the polymeric film is comprised of a polyimide.
Claim 29
Dependent Claim
17 words
Film structure of claim 26 wherein the polymeric film is a polyimide of 4,4'-oxydianiline and pyromellitic dianhydride.
Claim 30
Dependent Claim
10 words
Film structure of claim 26 wherein the metal is Ag.
Claim 31
Dependent Claim
10 words
Film structure of claim 26 wherein the metal is Au.
Claim 32
Dependent Claim
10 words
Film structure of claim 26 wherein the metal is Cu.
Claim 33
Dependent Claim
13 words
Film structure of claim 21 wherein there are a plurality of metal interlayers.
Claim 34
Dependent Claim
18 words
Film structure of claim 21 wherein the metal interlayer has been formed by the process of claim 1.
Claim 35
Dependent Claim
18 words
Film structure of claim 21 wherein the metal interlayer has been formed by the process of claim 2.
Claim 36
Dependent Claim
18 words
Film structure of claim 21 wherein the metal interlayer has been formed by the process of claim 3.
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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |