US2710253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconducting alloy
Assignee: Battelle Development Corp
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Filing: 1953-10-19
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Granted: 1955-06-07
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Expires: 1973-10-19
Abstract
Abstract A semiconducting material, consisting of an alloy composition of aluminium antimonide and gallium antimonide, contains (by weight): .Ga.0,93.-.33,5 per cent .Al.1,44.-.17,65 per cent .Sb.the remainder,.. the weight percentage of Ga plus 2,01 times the weight percentage of Al being equal to 36,4 to 3 significant figures. A particular composition described consists of: Ga 20,5 per cent; Al 7,9 per cent; Sb the remainder. The conductivity type of the material may be modified by adding zinc antimonide, cadmium antimonide, gallium telluride, gallium selenide or gallium sulphide up to a total of 0,01 atomic per cent.
Inventors
- 👤 Robert K Willardson
- 👤 Harvey L Goering
- 👤 Arthur E Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:06
CPC Classifications
C; C22; C22C; C22C28/00; H; H10; H10D; H10D62/00; H10D62/80; H10D62/85; H10D62/852; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/107; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A SEMICONDUCTING MATERIAL CONSISTING ESSENTIALLY OF FROM 33.5% TO 0.93% BY WEIGHT OF GALLIUM, FROM 1.44% TO 17.65% BY WEIGHT OF ALUMINUM, BALANCE ANTIMONY, IN WHICH THE SUM OF THE WEIGHT PERCENTAGE OF GALLIUM AND 2.01 TIMES THE WEIGHT PERCENTAGE OF ALUMINUM IS EQUAL TO ABOUT 36.4.
Claim 2
Dependent Claim
47 words
A SEMICONDUCTING MATERIAL CONSISTING ESSENTIALLY OF FROM 33.5% TO 0.93% BY WEIGHT OF GALLIUM, FROM 1.44% TO 17.65% BY WEIGHT OF ALUMINUM, BALANCE ANTIMONY, IN WHICH THE SUM OF THE WEIGHT PERCENTAGE OF GALLIUM AND 2.01 TIMES THE WEIGHT PERCENTAGE OF ALUMINUM IS EQUAL TO ABOUT 36.4.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |