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Patent US3588636A successfully refreshed from Google Patents.
US3588636A
Expired / Lapsed
US
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Ohmic contact and method and composition for forming same
Assignee: Globe Union Inc
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Filing: 1969-01-27
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Granted: 1971-06-28
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Expires: 1989-01-27
Abstract
Abstract A SEMICONDUCTIVE DEVICE SUCH AS A REDUCED BARIUM TITANATE IS PROVIDED WITH AT LEAST ONE OHMIC CONTACT CONSISTING ESSENTIALLY OF A HYPOEUTECTIC ALLOY OF NICKEL AND INDIUM. THE CONTACT MAY BE FORMED BY APPLYING TO THE SURFACE OF THE SEMICONDUCTOR A LAYER OF A COMPOSITION CONTAINING REDUCIBLE COMPOUNDS OF NICKEL AND INDIUM AND THEN FIRING THE DEVICE AT A LIQUIFYING TEMPERATURE UNDER REDUCING CONDITIONS.
Inventors
- 👤 William Otto Giesfeldt
- 👤 Roy Lee Pinnow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:20
CPC Classifications
H; H01; H01B; H01B1/00; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; H01B1/06; H01B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |