US2865794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor device with telluride containing ohmic contact and method of forming the same
Assignee: US Philips Corp
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Filing: 1955-12-01
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Granted: 1958-12-23
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Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Kroger Ferdinand Anne
- 👤 Nobel Dirk De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:27
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/40; H10P14/46; H10P14/47; H10D; H10D48/00; H10D48/01; H10D48/04; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A METHOD OF MAKING AN OHMIC CONTACT TO A P-TYPE SEMI-CONDUCTIVE BODY PORTION CONSISTING ESSENTIALLY OF A TELLURIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM, MERCURY, TIN AND LEAD, WHICH COMPRISES CONTACTING SAID BODY PORTION WITH TELLURIUM METAL, AND FUSING SAID TELLURIUM TO SID BODY PORTION IN A PREDOMINANTLY NITROGEN GAS ATMOSPHERE TO INCORPORATE SOME TELLURIUM IN THE BODY PORTION AND THEREBY ESTABLISH THE OHMIC CONTACT.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |