US3001896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusion control in germanium
Assignee: International Business Machines Corp
•
Filing: 1958-12-24
•
Granted: 1961-09-26
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 John C Marinace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/14; H10P32/1408; H10P32/141; H10P32/17; H10P32/171; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF PRODUCING A DIFFUSED GERMANIUM SEMICONDUCTOR BODY COMPRISING THE STEPS OF FORMING A GERMANIUM OXIDE COATING ON A GERMANIUM SEMICONDUCTOR BODY AND HEATING SAID OXIDIZED BODY IN THE PRESENCE OF A VAPOR OF A CONDUCTIVITY TYPE DETERMINING IMPURITY IN A CLOSED CHAMBER CONVERING THEREBY SAID OXIDE TO AN IMPURITY BEARING COATING ON SAID BODY, AND THEREAFTER, REMOVING SAID BODY FROM SAID CLOSED CHAMBER AND FURTHER HEATING IN AIR FOR A TIME AND AT A TEMPERATURE TO DIFFUSE SAID CONDUCTIVITY TYPE DETERMINING IMPURITY INTO SAID BODY.
Claim 2
Independent Claim
87 words
THE METHOD OF PRODUCING A DIFFUSED GERMANIUM SEMICONDUCTOR BODY COMPRISING THE STEPS OF FORMING A GERMANIUM OXIDE COATING ON A GERMANIUM SEMICONDUCTOR BODY AND HEATING SAID OXIDIZED BODY IN THE PRESENCE OF A VAPOR OF A CONDUCTIVITY TYPE DETERMINING IMPURITY IN A CLOSED CHAMBER CONVERING THEREBY SAID OXIDE TO AN IMPURITY BEARING COATING ON SAID BODY, AND THEREAFTER, REMOVING SAID BODY FROM SAID CLOSED CHAMBER AND FURTHER HEATING IN AIR FOR A TIME AND AT A TEMPERATURE TO DIFFUSE SAID CONDUCTIVITY TYPE DETERMINING IMPURITY INTO SAID BODY.
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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |