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US3774170A
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Fixed data memory utilizing schottky diodes
Assignee: Siemens AG
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Filing: 1971-04-28
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Granted: 1973-11-20
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Expires: 1991-04-28
Abstract
Abstract A fixed data memory utilizes Schottky diodes. The cathodes of the diodes are guided together, for one row or column, over a buried layer.
Inventors
- 👤 S Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/06; G11C17/08; H; H10; H10B; H10B99/00; H10B99/16; H10W; H10W20/00; H10W20/01; H10W20/021; H10W20/20; Y; Y10; Y10S; Y10S257/00; Y10S257/926
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
55 words
An integrated fixed data memory, comprising a semiconductor body having a zone having highly doped channels provided therein; and a plurality of memory elements each consisting of a Schottky diode, each of the diodes having a semiconductor region and an electrically conductive lead comprising one of said channels in said zone of said semiconductor body.
Claim 2
Dependent Claim
55 words
An integrated fixed data memory, comprising a semiconductor body having a zone having highly doped channels provided therein; and a plurality of memory elements each consisting of a Schottky diode, each of the diodes having a semiconductor region and an electrically conductive lead comprising one of said channels in said zone of said semiconductor body.
Claim 3
Dependent Claim
21 words
A data memory as claimed in claim 1, wherein said channels in said zone of the semiconductor body comprise buried layers.
Claim 4
Dependent Claim
34 words
A data memory as claimed in claim 1, wherein said memory elements are arranged in columns and rows, and further comprising insulating walls in the semiconductor body between the rows of the memory elements.
Claim 5
Dependent Claim
28 words
A data memory as claimed in claim 3, wherein said channels in said zone of the semiconductor body comprise buried layers extending substantially parallel to said insulating walls.
References Cited (Backward Citations)
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |