US3309240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunnel diodes
Assignee: Honeywell Inc
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Filing: 1964-07-02
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Granted: 1967-03-14
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 Zook James David
- 👤 Helmut J Hornung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:48
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/50; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A TUNNEL DIODE COMPRISING: (A) A BODY OF SINGLE CRYSTAL SEMICONDUCTOR MATERIAL OF A FIRST CONDUCTIVITY TYPE HAVING AN IMPURITY CONCENTRATION OF LESS THAN 10**18 ATOMS PER CC., (B) AN ELONGATED REGION OF HIGHLY DOPED FIRST CONDUCTIVITY TYPE MATERIAL LOCATED IN A PORTION ONLY OF ONE SURFACE OF SAID BODY, (C) AND A REGION OF HIGHLY DOPED OPPOSITE CONDUCTIVITY EXTENDING ENTIRELY ACROSS AND COMPLETELY THROUGH A TERMINAL END PORTION OF SAID ELONGATED REGION SUCH THAT THE TUNNEL DIODE JUNCTION AREA IS DETERMINED SOLELY BY THE WIDTH AND DEPTH OF THE ELONGATED REGION.
Claim 2
Dependent Claim
92 words
A TUNNEL DIODE COMPRISING: (A) A BODY OF SINGLE CRYSTAL SEMICONDUCTOR MATERIAL OF A FIRST CONDUCTIVITY TYPE HAVING AN IMPURITY CONCENTRATION OF LESS THAN 10**18 ATOMS PER CC., (B) AN ELONGATED REGION OF HIGHLY DOPED FIRST CONDUCTIVITY TYPE MATERIAL LOCATED IN A PORTION ONLY OF ONE SURFACE OF SAID BODY, (C) AND A REGION OF HIGHLY DOPED OPPOSITE CONDUCTIVITY EXTENDING ENTIRELY ACROSS AND COMPLETELY THROUGH A TERMINAL END PORTION OF SAID ELONGATED REGION SUCH THAT THE TUNNEL DIODE JUNCTION AREA IS DETERMINED SOLELY BY THE WIDTH AND DEPTH OF THE ELONGATED REGION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |