US3746568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noble metal glass binder compositions and methods of using same
Assignee: Techneglas LLC
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Filing: 1971-03-11
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Granted: 1973-07-17
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Expires: 1991-03-11
Abstract
Abstract A PEEL-BACK RESISTANT COMPOSITION USEFUL TO FORM A DIEBONDING PAD IN MICROELECTRONIC CIRCUITRY IS PROVIDED. THE COMPOSITION COMPRISES BY WEIGHT ABOUT 94-98% PARTICULATE NOBLE METAL AND ABOUT 2-6% BY WEIGHT OF A GLASS BINDER. THE GLASS BINDER CONSISTS OF A FRITTED PARTICULATE GLASS FORMED FROM A COMPOSITION COMPRISING BY WEIGHT ABOUT; 75-89% PBO, 10-15% B2O3, 1-8% BAO AND 0-6% SIO2. THE PARTICULATE COMPOSITION IS READILY FORMED INTO A PRINTING PASTE USING AN ORGANIC VEHICLE AND IS FIREABLE AT ABOUT 550-1000* C. TO A NONPEELING PAD OR COATING.
Inventors
- 👤 F Rybarczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:03
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/12; C03C3/14; C03C3/142; H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H10; H10W; H10W72/00; H10W72/071; H10W72/073; H10W72/07331; H10W72/07337; H10W72/30; H10W72/321; H10W72/325; H10W72/351; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256
Claims Analysis
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |