US3182118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing contacts on semiconductive ceramic bodies of n-type oxidic material and contacts produced thereby
Assignee: US Philips Corp
•
Filing: 1963-04-17
•
Granted: 1965-05-04
•
Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Proost Roger Marie Albert De
- 👤 Klaassen Christiaan Alfo Maria
- 👤 Yperman Jean Michel B Ghislain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:05
CPC Classifications
H; H01; H01B; H01B1/00; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A SEMI-CONDUCTOR COMPONENT COMPRISING A SEMI-CONDUCTIVE CERAMIC BOSY OF N-TYPE CONDUCTIVITY OXIDIC MATERIAL, A FIRED SILVER LAYER OF A SURFACE PORTION OF SAID BODY, AN ELECTRICAL CONNECTION TO THE SILVER LAYER, AND AN ELEMENT SELECTED FROM THE GROUP CONSSITING OF ZINC AND TIN BEING PRESENT AT THE INTERFACE OF THE SILVER AND THE BODY AND HAVING BEEN PROVIDED THEREAT BY DIFFUSION THROUGH THE SILVER LAYER TO LOWER THE CONTACT 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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |