Patent US3373321A successfully refreshed from Google Patents.
US3373321A
Expired / Lapsed
US
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Double diffusion solar cell fabrication
Assignee: Westinghouse Electric Corp
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Filing: 1964-02-14
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Granted: 1968-03-12
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Expires: 1984-02-14
Abstract
No abstract record available.
Inventors
- 👤 Krishan S Tarneja
- 👤 Mohammed S Shaikh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:05
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F71/00; H10F99/00; H10P; H10P95/00; Y; Y02; Y02A; Y02A40/00; Y02A40/90; Y02A40/963; Y02A40/966; Y02E; Y02E10/00; Y02E10/50; Y02E10/547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SEMICONDUCTOR STRUCTURE FOR USE IN SOLAR CELLS COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL OF A FIRST SEMICONDUCTIVITY TYPE AND A HIGH RESISTIVITY AND HAVING OPPOSED MAJOR SURFACES, A THIN ZONE OF THE FIRST SEMICONDUCTIVITY TYPE AND OF A LOW RESISTIVITY MATERIAL IN EACH OF THE MAJOR SURFACES THEREOF, A ZONE THINNER THAN SAID FIRST ZONE OF THE FIRST SEMICONDUCTIVITY TYPE, OF OPPOSITE SEMICONDUCTIVITY TYPE AND OF LOW RESISTIVITY IN SURFACE OF ONE OF THE THIN ZONES OF FIRST SEMICONDUCTIVITY TYPE WHEREBY A P-N JUNCTION IS PROVIDED, A GRID TYPE OHMIC CONTACT ON A PORTION OF THE SURFACE OF THE THIN ZONE OF OPPOSITE SEMICONDUCTIVITY TYPE AND A LARGE AREA OHMIC CONTACT ON THE SURFACE OF THE FIRST CONDUCTIVITY TYPE SURFACE.
Claim 2
Dependent Claim
121 words
A SEMICONDUCTOR STRUCTURE FOR USE IN SOLAR CELLS COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL OF A FIRST SEMICONDUCTIVITY TYPE AND A HIGH RESISTIVITY AND HAVING OPPOSED MAJOR SURFACES, A THIN ZONE OF THE FIRST SEMICONDUCTIVITY TYPE AND OF A LOW RESISTIVITY MATERIAL IN EACH OF THE MAJOR SURFACES THEREOF, A ZONE THINNER THAN SAID FIRST ZONE OF THE FIRST SEMICONDUCTIVITY TYPE, OF OPPOSITE SEMICONDUCTIVITY TYPE AND OF LOW RESISTIVITY IN SURFACE OF ONE OF THE THIN ZONES OF FIRST SEMICONDUCTIVITY TYPE WHEREBY A P-N JUNCTION IS PROVIDED, A GRID TYPE OHMIC CONTACT ON A PORTION OF THE SURFACE OF THE THIN ZONE OF OPPOSITE SEMICONDUCTIVITY TYPE AND A LARGE AREA OHMIC CONTACT ON THE SURFACE OF THE FIRST CONDUCTIVITY TYPE SURFACE.
References Cited (Backward Citations)
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US3187193A
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US3105177A
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US3050864A
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US3265532A
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US3254234A
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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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |