US3909458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive vitreous layer comprising bismuth and selenium
Assignee: Xerox Corp
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Filing: 1974-05-06
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Granted: 1975-09-30
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Expires: 1994-05-06
Abstract
Abstract This invention relates to a vitreous semiconductor comprising at least one metal and at least one non-metal which is solid at room temperature, the semiconductor having at least 0.5 atomic percent metal and a greater than stoichiometric percentage of non-metal. The invention also relates to a method for producing such semiconductors by co-evaporating the metal and the non-metal and simultaneously quenching said metal and said non-metal onto a substrate held at a temperature below the condensation point of either component.
Inventors
- 👤 John C Schottmiller
- 👤 Francis W Ryan
- 👤 Charles Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:15
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/547; B; B22; B22F; B22F9/00; B22F9/002; B22F9/008; C03; C03C; C03C3/00; C03C3/12; C04B35/58; C04B35/5805; C22; C22C; C22C28/00; C23; C23C; C23C14/00; C23C14/06; C23C14/0623; C23C14/22; C23C14/54; C23C14/541; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; G03G5/08285; H; H01; H01J; H01J9/00; H01J9/20; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/158; Y10S148/169; Y10S505/00; Y10S505/825; Y10S505/848; Y10S505/849; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
A SEMICONDUCING ELEMENT WHICH INCLUDES A VITEROUS LAYER COMPRISING BISMUTH AND SELENIUM, IN WHICH THE BISMUTH COMPRISES ABOUT 2.0 TO 4.0 ATOMIC PERCENT, WITH THE BALANCE SUBSTANTIALLY SELENIUM.
Claim 2
Dependent Claim
28 words
A SEMICONDUCING ELEMENT WHICH INCLUDES A VITEROUS LAYER COMPRISING BISMUTH AND SELENIUM, IN WHICH THE BISMUTH COMPRISES ABOUT 2.0 TO 4.0 ATOMIC PERCENT, WITH THE BALANCE SUBSTANTIALLY SELENIUM.
Claim 3
Dependent Claim
16 words
The element of claim 1 in which the bismuth comprises about 2.5 to 3.5 atomic percent.
References Cited (Backward Citations)
US3490903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |