US3718608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor compositions for microcircuitry
Assignee: OI Glass Inc
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Filing: 1969-10-06
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Granted: 1973-02-27
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Expires: 1989-10-06
Abstract
Abstract Resistor and conductor paste compositions and structures formed therefrom for hybrid integrated circuits are disclosed in which a metal which substantially contributes the electrical conductivity is coated over micron-sized glass particles. The metal coated particles are then mixed and fused into a glass matrix, the whole adhering to a ceramic substrate. This structure results in greater conductivity for a given quantity of the metal. Efficient metals for the purpose are silver and the noble metals and alloys of these relatively expensive materials.
Inventors
- 👤 D Mason
- 👤 H Nester
- 👤 D Nester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:32
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06526; B; B22; B22F; B22F1/00; B22F1/18; H01B; H01B1/00; H01B1/14; H01B1/16; H10; H10N; H10N97/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
A resistor comprising as a mass fused to a ceramic substrate a plurality of mutually contacting conductor bodies each less than ten microns in diameter having a core of glass and a skin of an alloy of metals essentially of the group consisting of silver and the noble metals, said skin comprising less than half silver by weight and covering said core essentially completely, said bodies being diffused together and embedded in a matrix of glass.
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |