US2858275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed-crystal semiconductor devices
Assignee: Siemens Schuckertwerke AG
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Filing: 1955-12-20
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Granted: 1958-10-28
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Folberth Otto-Gert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:05
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/14; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/065; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A SEMICONDUCTOR DEVICE, COMPRISING A SOLID BODY FORMED OF A MIXED CRYSTAL OF BINARY SEMICONDUCTOR COMPOUNDS, SAID CRYSTAL BEING OF THE TYPE A1III (CYD1-Y)V, WHEREIN AIII IS AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMINUM, GALLIU AND INDIUM, CV AND DV ARE DIFFERENCE RESPECTIVE ELEMENTS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, PHOSPHOROUS, ARSENIC AND ANTIMONY, AND THE SUBSCRIPTS DENOTE ATOM PROPORTIONS, THE VALUE B BEING LARGER THAN ZERO AND SMALLER THAN INITY BY AN AMOUNT SUFFICIENT FOR THE VALUES OF CARRIER MOBILITY AND MELTING TEMPERATURE OF THE MIXED CRYSTAL TO BE DIFFERENT FROM, AND INTERMEDIATE OF, THOSE OF THE BINARY COMPOUNDS OF AIIICV AND AIIIDV.
Claim 2
Dependent Claim
108 words
A SEMICONDUCTOR DEVICE, COMPRISING A SOLID BODY FORMED OF A MIXED CRYSTAL OF BINARY SEMICONDUCTOR COMPOUNDS, SAID CRYSTAL BEING OF THE TYPE A1III (CYD1-Y)V, WHEREIN AIII IS AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMINUM, GALLIU AND INDIUM, CV AND DV ARE DIFFERENCE RESPECTIVE ELEMENTS SELECTED FROM THE GROUP CONSISTING OF NITROGEN, PHOSPHOROUS, ARSENIC AND ANTIMONY, AND THE SUBSCRIPTS DENOTE ATOM PROPORTIONS, THE VALUE B BEING LARGER THAN ZERO AND SMALLER THAN INITY BY AN AMOUNT SUFFICIENT FOR THE VALUES OF CARRIER MOBILITY AND MELTING TEMPERATURE OF THE MIXED CRYSTAL TO BE DIFFERENT FROM, AND INTERMEDIATE OF, THOSE OF THE BINARY COMPOUNDS OF AIIICV AND AIIIDV.
References Cited (Backward Citations)
US2710253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |