US2937960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing rectifying junctions of predetermined shape
Assignee: RCA Corp
•
Filing: 1953-03-23
•
Granted: 1960-05-24
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/20; G; G04; G04B; G04B19/00; G04B19/22; H10D; H10D30/00; H10D30/01; H10D30/051; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S165/00; Y10S165/905; Y10S438/00; Y10S438/965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A PROCESS FOR MAKING A SEMI-CONDUCTOR DEVICE COMPRISING MELTING A BODY OF AN IMPURITY-YIELDING MATERIAL HAVING A PART OF ITS SURFACE IN CONTACT WITH A SURFACE OF A SEMI-CONDUCTING BODY TO FUSE SAID MATERIAL TO SAID SURFACE TO FORM A P-N RECTIFYING JUNCTION WITHIN SAID SEMI-CONDUCTING BODY, THE STEP OF RESTRAINING SAID MATERIAL TO CAUSE THAT PART OF THE SURFACE THEREOF DISPOSED OPPOSITE FORM SAID SURFACE IN CONTACT WITH SAID SEMI-CONDUCTING BODY TO ASSUME A PREDETERMINED SHAPE DURING SAID MELTING, WHEREBY TO AID IN PRODUCING A P-N RECTIFYING JUNCTION OF SHAPE WHICH IS A MIRROR IMAGE OF SAID PREDETERMINED SHAPE.
Claim 2
Dependent Claim
101 words
IN A PROCESS FOR MAKING A SEMI-CONDUCTOR DEVICE COMPRISING MELTING A BODY OF AN IMPURITY-YIELDING MATERIAL HAVING A PART OF ITS SURFACE IN CONTACT WITH A SURFACE OF A SEMI-CONDUCTING BODY TO FUSE SAID MATERIAL TO SAID SURFACE TO FORM A P-N RECTIFYING JUNCTION WITHIN SAID SEMI-CONDUCTING BODY, THE STEP OF RESTRAINING SAID MATERIAL TO CAUSE THAT PART OF THE SURFACE THEREOF DISPOSED OPPOSITE FORM SAID SURFACE IN CONTACT WITH SAID SEMI-CONDUCTING BODY TO ASSUME A PREDETERMINED SHAPE DURING SAID MELTING, WHEREBY TO AID IN PRODUCING A P-N RECTIFYING JUNCTION OF SHAPE WHICH IS A MIRROR IMAGE OF SAID PREDETERMINED SHAPE.
References Cited (Backward Citations)
US2310915A
Cited
US2433903A
Cited
US2644852A
Cited
US2742383A
Cited
US2697052A
Cited
US2791542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |