US3178271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature ohmic joint for silicon semiconductor devices and method of forming same
Assignee: Lanteris Space LLC
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Filing: 1960-02-26
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Granted: 1965-04-13
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Expires: 1980-02-26
Abstract
No abstract record available.
Inventors
- 👤 Leon I Maissel
- 👤 Harry A Cassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12771; Y10T428/12806; Y10T428/12812; Y10T428/12861; Y10T428/12875; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A COMPOSITE LAYER IN A SEMICONDUCTOR DEVICE COMPRISING A SILICON BODY SECURED TO A BASE MEMBER COMPOSED OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM, TANTALUM, TUNGSTEN AND NIOBIUM, AND A BOND SECURING SAID BASE MEMBER TO SAID SILICON BODY CONSISTING OF A PLATINUM LAYER METALLURGICALLY BONDED TO SAID BASE MEMBER AND A NICKEL LAYER METALLURGICALLY BONDED TO THE PLATINUM LAYER HAVING WITH THE SILICON LAYER A BONDING ZONE WHEREIN THE MATERIAL CONSISTS OF ELEMENTS FROM THE INTERACTION OF THE NICKEL LAYER, SILICON LAYER AND IMPURITIES CONTAINED IN THE SILICON LAYER CAUSED IN THE BONDING STEP.
Claim 2
Dependent Claim
98 words
A COMPOSITE LAYER IN A SEMICONDUCTOR DEVICE COMPRISING A SILICON BODY SECURED TO A BASE MEMBER COMPOSED OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM, TANTALUM, TUNGSTEN AND NIOBIUM, AND A BOND SECURING SAID BASE MEMBER TO SAID SILICON BODY CONSISTING OF A PLATINUM LAYER METALLURGICALLY BONDED TO SAID BASE MEMBER AND A NICKEL LAYER METALLURGICALLY BONDED TO THE PLATINUM LAYER HAVING WITH THE SILICON LAYER A BONDING ZONE WHEREIN THE MATERIAL CONSISTS OF ELEMENTS FROM THE INTERACTION OF THE NICKEL LAYER, SILICON LAYER AND IMPURITIES CONTAINED IN THE SILICON LAYER CAUSED IN THE BONDING STEP.
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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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |