US4727007A
Expired / Lapsed
US
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Holographic devices employing metallic charge-transfer salts
Assignee: Brown University Research Foundation Inc
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Filing: 1985-12-31
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Granted: 1988-02-23
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Expires: 2005-12-31
Abstract
Abstract Metallic salts of organic charge-transfer agents, such as TCNQ, TNAP, TCNE and DDQ and their derivatives, can be processed by an electron beam for a variety of useful electronic and optical applications. The metallic charge transfer salts can be used to deposit high resolution conductive lines directly without developing solutions or subsequent metallization steps. The compounds can also be employed in the conventional manner as resists for doping (i.e., ion diffusion or implantation) and to diffuse metals into substrates. In particular, elecronic devices, optical devices and image-storage devices are disclosed which can be formed by simple electron beam processed of metal charge-transfer salt films deposited on substrates.
Inventors
- 👤 William M. Risen, Jr.
- 👤 Efstratios I. Kamitsos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/735; G03C5/00; G03C5/56; H; H10; H10F; H10F77/00; H10F77/20; H10K; H10K85/00; H10K85/60; H10K85/611; H10P; H10P14/00; H10P14/60; H10P14/68; H10P14/683; H10P30/00; H10P30/20; H10P32/00; H10P32/10; H10P32/14; H10P32/1408; H10P32/17; H10P32/171
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
A holographic system for recording images, the system comprising a holographic plate having a substrate and a film of a metallic charge transfer salt disposed thereon, an electron beam engraving means having sufficient energy and resolution to convert the salt in exposed regions into the free valent species of its constituents and cause the sublimation of the organic charge transfer constituent for engraving the plate with an image, and an illumination means for illuminating the plate to view the image.
Claim 2
Dependent Claim
80 words
A holographic system for recording images, the system comprising a holographic plate having a substrate and a film of a metallic charge transfer salt disposed thereon, an electron beam engraving means having sufficient energy and resolution to convert the salt in exposed regions into the free valent species of its constituents and cause the sublimation of the organic charge transfer constituent for engraving the plate with an image, and an illumination means for illuminating the plate to view the image.
Claim 3
Dependent Claim
51 words
The system of claim 1 wherein the salt film of the plate comprises a metal constituent chosen from the group of copper, silver, nickel, cobalt, zinc, cadmium, platinum, palladium, iridium, osmium, and rhodium and an organic electron acceptor constituent chosen from the group of tetracyanoquinodimethanes, tetracyanonapthoquinodimethanes, tetracyanoethylenes, dichlorodicyanobenzoquinones and derivatives thereof.
Claim 4
Dependent Claim
10 words
The system of claim 2 wherein the salt is CuTCNQ.
Claim 5
Dependent Claim
10 words
The system of claim 2 wherein the salt is AgTCNQ.
Claim 6
Dependent Claim
12 words
The system of claim 1 wherein the substrate is a reflective substrate.
Claim 7
Dependent Claim
14 words
The system of claim 5 wherein the plate substrate includes a copper mirror surface.
Claim 8
Dependent Claim
14 words
The system of claim 5 wherein the plate substrate includes a silver mirror surface.
Claim 9
Dependent Claim
13 words
The system of claim 1 wherein the plate substrate is a transparent substrate.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |