US3046324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloyed photovoltaic cell and method of making the same
Assignee: Hoffman Electronics Corp
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Filing: 1961-01-16
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Granted: 1962-07-24
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Sheldon L Matlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/14; H10F99/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF MAKING A SOLAR CELL, COMPRISING THE STEPS OF: DEPOSITING AN ALUMINUM LAYER UPON AN N-TYPE SILICON WAFER; ALLOYING SAID ALUMINUM LAYER TO SAID WAFER SO AS TO FORM WITHIN SAID WAFER N- AND P-TYPE REGIONS SEPARATED BY A P-N JUNCTION; MASKING A RING-LIKE CONFIGURATION OF SAID ALUMINUM LAYER; AND ETCHING AWAY ALL OF THE UNMASKED PORTION OF SAID ALUMINUM LAYER, THEREBY EXPOSING SAID P-TYPE REGION IN THE CENTRAL PORTION OF SAID WAFER THROUGH SAID RING-LIKE CONFIGURATION.
Claim 2
Independent Claim
79 words
A METHOD OF MAKING A SOLAR CELL, COMPRISING THE STEPS OF: DEPOSITING AN ALUMINUM LAYER UPON AN N-TYPE SILICON WAFER; ALLOYING SAID ALUMINUM LAYER TO SAID WAFER SO AS TO FORM WITHIN SAID WAFER N- AND P-TYPE REGIONS SEPARATED BY A P-N JUNCTION; MASKING A RING-LIKE CONFIGURATION OF SAID ALUMINUM LAYER; AND ETCHING AWAY ALL OF THE UNMASKED PORTION OF SAID ALUMINUM LAYER, THEREBY EXPOSING SAID P-TYPE REGION IN THE CENTRAL PORTION OF SAID WAFER THROUGH SAID RING-LIKE CONFIGURATION.
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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |