US3154838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of p-nu junctions in semiconductor material
Assignee: Associated Electrical Industries Ltd
•
Filing: 1960-03-18
•
Granted: 1964-11-03
•
Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Bullough Ronald
- 👤 Newman Ronald Charles
- 👤 Wakefield James
- 👤 Rouse Robert Lindsay
- 👤 Willis John Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:20
CPC Classifications
H; H10; H10D; H10D10/00; C; C30; C30B; C30B15/00; C30B15/36; C30B31/00; C30B31/02; H10D1/00; H10D1/40; H10D48/00; H10D48/30; H10D48/38; H10D62/00; H10D62/10; H10D62/60; H10D62/80; H10D62/83; H10D62/834; H10P; H10P10/00; H10P32/00; H10P36/00; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/003; Y10S148/033; Y10S148/049; Y10S148/051; Y10S148/115; Y10S148/122; Y10S148/151; Y10S438/00; Y10S438/914; Y10S438/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A PORCESS FOR PRODUCING A BODY OF SEMICONDUCTOR MATERIAL OF SUBSTANTIALLY MONO-CRYSTALLINE STRUCTURE HAVING JUNCTIONS THEREIN OF SMALL CROSS-SECTIONAL AREA BETWEEN REGIONS OF SAID MATERIAL OF OPPOSITE CONDUCTIVITY TYPE CONSISTING IN PORDUCING SAID BODY CONTAINING DEFECTS, SAID DEFECTS BEING LINE EDGE DISLOCATIONS, SAID BODY ALSO CONTAINING HOMOGENEOUSLY AS SOLUTES BOTH OXYGEN TOGETHER WITH AT LEAST ONE EACH OF IMPURITY ACTIVATORS CHARACTERISTIC OF OPPOSITE CONDUCTIVELY TYPE, THE CONCENTRATION OF IMPURITY ACTIVATOR CHARACTERISTIC OF ONE CONDUCTIVITY TYPE BEING INITIALLY PREDOMINANT WHEREBY TO CAUSE SAID BODY TO DISPLAY SAID ONE CONDUCTIVITY TYPE, HEATING SAID BODY IN CONTROLLED MANNER AND AT A SELECTED TEMPERATURE WHEREBY TO CAUSE OXYGEN AT EACH OF SAID DEFECTS TO COMBINE WTIH AND RENDER INACTIVE AT LEAST PART OF SAID INITIALLY
Claim 2
Dependent Claim
121 words
A PORCESS FOR PRODUCING A BODY OF SEMICONDUCTOR MATERIAL OF SUBSTANTIALLY MONO-CRYSTALLINE STRUCTURE HAVING JUNCTIONS THEREIN OF SMALL CROSS-SECTIONAL AREA BETWEEN REGIONS OF SAID MATERIAL OF OPPOSITE CONDUCTIVITY TYPE CONSISTING IN PORDUCING SAID BODY CONTAINING DEFECTS, SAID DEFECTS BEING LINE EDGE DISLOCATIONS, SAID BODY ALSO CONTAINING HOMOGENEOUSLY AS SOLUTES BOTH OXYGEN TOGETHER WITH AT LEAST ONE EACH OF IMPURITY ACTIVATORS CHARACTERISTIC OF OPPOSITE CONDUCTIVELY TYPE, THE CONCENTRATION OF IMPURITY ACTIVATOR CHARACTERISTIC OF ONE CONDUCTIVITY TYPE BEING INITIALLY PREDOMINANT WHEREBY TO CAUSE SAID BODY TO DISPLAY SAID ONE CONDUCTIVITY TYPE, HEATING SAID BODY IN CONTROLLED MANNER AND AT A SELECTED TEMPERATURE WHEREBY TO CAUSE OXYGEN AT EACH OF SAID DEFECTS TO COMBINE WTIH AND RENDER INACTIVE AT LEAST PART OF SAID INITIALLY
References Cited (Backward Citations)
US2954307A
Cited
US2979427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |