US2822310A
Expired / Lapsed
US
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Semi-conductor device
Assignee: US Philips Corp
•
Filing: 1956-04-23
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Granted: 1958-02-04
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Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 Stieltjes Frederik Hendrik
- 👤 Tummers Leonard Johan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/60; H10D62/10; H10D62/13; H10D62/133; H10D62/137; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A SEMI-CONDUCTOR DEVICE COMPRISING A SEMI-CONDUCTIVE BODY CONTAINING A P-N JUNCTION, A BUFFER PORTION OF THE SEMI-CONDUCTIVE BODY ON ONE SIDE OF SAID JUNCTION AND HAVING A THICKNESS AT LEAST TWICE THE DEBYE-HUCKEL LENGTH LDH BUT SMALL RELATIVE TO A DIFFUSION LENGTH L IN SAID BUFFER PORTION, WHERE
Claim 2
Dependent Claim
48 words
A SEMI-CONDUCTOR DEVICE COMPRISING A SEMI-CONDUCTIVE BODY CONTAINING A P-N JUNCTION, A BUFFER PORTION OF THE SEMI-CONDUCTIVE BODY ON ONE SIDE OF SAID JUNCTION AND HAVING A THICKNESS AT LEAST TWICE THE DEBYE-HUCKEL LENGTH LDH BUT SMALL RELATIVE TO A DIFFUSION LENGTH L IN SAID BUFFER PORTION, WHERE
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |