Patent US4463216A successfully refreshed from Google Patents.
US4463216A
Expired / Lapsed
US
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Solar cell
Assignee: Toshiba Corp
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Filing: 1983-01-20
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Granted: 1984-07-31
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Expires: 2003-01-20
Abstract
Abstract A solar cell and a method of manufacturing the same are disclosed. The solar cell has a semiconducor substrate having a major surface for receiving light, a p-n junction for photovoltatic generation therein and a thin alumina coating layer on the major surface of the semiconductor substrate. The alumina coating layer includes H radicals and OH radicals.
Inventors
- 👤 Hirotaka Nakano
- 👤 Hiroshi Morita
- 👤 Taketoshi Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:19
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/14; H10F77/00; H10F77/30; H10F77/306; H10F77/311; H10F77/315; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/547
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
A solar cell comprising: a semiconductor substrate having a major surface for receiving light and a p-n junction for photovoltaic generation; wherein an aluminum oxide coating layer is formed on said major surface; said aluminum oxide coating layer having H radicals or OH radicals in amounts of 1 to 30 atom %, and being substantially in contact with said major surface, wherein an antireflective layer is further provided over said aluminum oxide coating layer.
Claim 2
Dependent Claim
74 words
A solar cell comprising: a semiconductor substrate having a major surface for receiving light and a p-n junction for photovoltaic generation; wherein an aluminum oxide coating layer is formed on said major surface; said aluminum oxide coating layer having H radicals or OH radicals in amounts of 1 to 30 atom %, and being substantially in contact with said major surface, wherein an antireflective layer is further provided over said aluminum oxide coating layer.
Claim 3
Dependent Claim
20 words
A solar cell according to claim 1, wherein said aluminum oxide coating layer is less than 100 Å in thickness.
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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |