US3351503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of p-nu junctions by diffusion
Assignee: Horizons Inc
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Filing: 1965-09-10
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Granted: 1967-11-07
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Richard A Fotland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:41
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/12; H10P32/17; H10P32/171; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/023; Y10S148/071; Y10S148/072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD OF PRODUCING P-N JUNCTIONS WHICH COMPRISIES: POSITIONING A SEMICONDUCTOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF P-TYPE SILICON AND N-TYPE SILICON IN AN ATMOSPHERE OF A DECOMPOSABLE VAPOR OF A DOPANT COMPOUND AT A PRESSURE SUCH THAT A LAYER OF THE VAPOR IS ADSORBED ON THE SURFACE OF THE SEMICONDUCTOR MATERIAL; DECOMPOSING SELECTED PORTIONS OF SAID ADSORBED LAYER BY SCANING THE SAME WITH AN ELECTRON BEAM, THEREBY DEPOSITING A DOPANT ON SAID SEMICONDUCTOR SURFACE AND DIFFUSING THE SAME INTO SAID SEMICONDUCTOR MATERIAL, THEREBY PRODUCING A P-N JUNCTION IN SAID SEMICONDUCTOR MATERIAL.
Claim 2
Independent Claim
93 words
A METHOD OF PRODUCING P-N JUNCTIONS WHICH COMPRISIES: POSITIONING A SEMICONDUCTOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF P-TYPE SILICON AND N-TYPE SILICON IN AN ATMOSPHERE OF A DECOMPOSABLE VAPOR OF A DOPANT COMPOUND AT A PRESSURE SUCH THAT A LAYER OF THE VAPOR IS ADSORBED ON THE SURFACE OF THE SEMICONDUCTOR MATERIAL; DECOMPOSING SELECTED PORTIONS OF SAID ADSORBED LAYER BY SCANING THE SAME WITH AN ELECTRON BEAM, THEREBY DEPOSITING A DOPANT ON SAID SEMICONDUCTOR SURFACE AND DIFFUSING THE SAME INTO SAID SEMICONDUCTOR MATERIAL, THEREBY PRODUCING A P-N JUNCTION IN SAID SEMICONDUCTOR MATERIAL.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |