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US4626818A
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Device for programmable thick film networks
Assignee: Centralab Inc
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Filing: 1983-11-28
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Granted: 1986-12-02
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Expires: 2003-11-28
Abstract
Abstract An energy sensitive fusible device fabricated by thick film techniques in which a fuse element is sandwiched between two glazes on a substrate, for use in programming thick film networks.
Inventors
- 👤 John L. Hilgers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:19
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45076; H03F3/45475; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/046; H05; H05K; H05K1/00; H05K1/02; H05K1/0286; H05K1/0293; H10; H10W; H10W20/00; H10W20/40; H10W20/49; H10W20/493; H03F2203/00; H03F2203/45; H03F2203/45522; H03G; H03G1/00; H03G1/0005; H03G1/0088; H03H; H03H7/00; H03H7/24; H05K1/09; H05K1/092; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09727; H05K2201/10; H05K2201/10007; H05K2201/10181; H05K3/00; H05K3/22; H05K3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A thick film fusible device for use in a programmable thick film network comprising: an alumina substrate; a layer of an inorganic dielectric glaze screened on said substrate; a thick film conductor in the form of a pattern of a fusible link having a narrow segment deposited on and straddling said glazed substrate; and a second layer of inorganic glaze deposited over said first layer of glaze and the narrow segment of said fusible link, said second layer confining said conductor pattern so that high current released to said fusible link will cause said second layer of glaze to rupture thus releasing the conductive material and resulting in a high post fusing resistance.
Claim 2
Dependent Claim
113 words
A thick film fusible device for use in a programmable thick film network comprising: an alumina substrate; a layer of an inorganic dielectric glaze screened on said substrate; a thick film conductor in the form of a pattern of a fusible link having a narrow segment deposited on and straddling said glazed substrate; and a second layer of inorganic glaze deposited over said first layer of glaze and the narrow segment of said fusible link, said second layer confining said conductor pattern so that high current released to said fusible link will cause said second layer of glaze to rupture thus releasing the conductive material and resulting in a high post fusing resistance.
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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |