US2743201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monatomic semiconductor devices
Assignee: Raytheon Co
•
Filing: 1952-04-29
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Granted: 1956-04-24
•
Expires: 1972-04-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph P Johmson
- 👤 Robert G Shulman
- 👤 Delbert M Van Winkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:05
CPC Classifications
H; H10; H10P; H10P10/00; H10P10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF PRODUCTING P-N JUNCTION SEMICONDUCTOR DEVICES WHICH COMPRISES THE STEPS OF PLACING A RELATIVELY COARSE SURFACE OF A FIRST SEMICONDUCTOR SPECIMEN IN CONTACT WITH A RELATIVELY SMOOTH SURFACE OF A SECOND SEMICONDUCTOR SPECIMEN, STRESSING THE FIRST SPECIMEN AGAINST THE SECOND SPECIMEN, AND HEATING THE SPECIMENS TO A TEMPERATURE VALUE WHEREAT THE FIRST AND SECOND SEMICONDUCTOR SPECIMENS FUSE WITH EACH OTHER IN THE VICINITY OF THE CONTACT BETWEEN THE SPECIMENS.
Claim 2
Independent Claim
71 words
THE METHOD OF PRODUCTING P-N JUNCTION SEMICONDUCTOR DEVICES WHICH COMPRISES THE STEPS OF PLACING A RELATIVELY COARSE SURFACE OF A FIRST SEMICONDUCTOR SPECIMEN IN CONTACT WITH A RELATIVELY SMOOTH SURFACE OF A SECOND SEMICONDUCTOR SPECIMEN, STRESSING THE FIRST SPECIMEN AGAINST THE SECOND SPECIMEN, AND HEATING THE SPECIMENS TO A TEMPERATURE VALUE WHEREAT THE FIRST AND SECOND SEMICONDUCTOR SPECIMENS FUSE WITH EACH OTHER IN THE VICINITY OF THE CONTACT BETWEEN THE SPECIMENS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |