US4360564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin films of low resistance and high coefficients of transmission in the visible spectrum
Assignee: General Electric Co
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Filing: 1981-01-29
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Granted: 1982-11-23
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Expires: 2001-01-29
Abstract
Abstract A conductive film having low electrical resistance and having a high coefficient of transmission of radiation in the visible portion of the electromagnetic spectrum is described. The film consists of a thin layer of the intermetallic compound of gold and aluminum having the formula AuAl 2 .
Inventors
- 👤 Herbert R. Philipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:38
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/20; H10F77/206; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
A radiation sensing device comprising a substrate of semiconductor material of one conductivity type, a first layer of transparent insulating material overlying a major surface of said substrate, a film of a conductive material overlying said first layer and forming a capacitor with said first layer, said film consisting of an intermetallic compound having the formula AuAl 2 , said film being less than about 300 Angstroms thick, means for making conductive contact to said film, means for making conductive contact to said substrate.
Claim 2
Dependent Claim
84 words
A radiation sensing device comprising a substrate of semiconductor material of one conductivity type, a first layer of transparent insulating material overlying a major surface of said substrate, a film of a conductive material overlying said first layer and forming a capacitor with said first layer, said film consisting of an intermetallic compound having the formula AuAl 2 , said film being less than about 300 Angstroms thick, means for making conductive contact to said film, means for making conductive contact to said substrate.
Claim 3
Dependent Claim
21 words
The radiation sensing device of claim 1 in which said substrate is silicon and said transparent insulating layer is silicon dioxide.
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) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |