US2841509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of doping semi-conductive material
Assignee: RCA Corp
•
Filing: 1955-04-27
•
Granted: 1958-07-01
•
Expires: 1975-04-27
Abstract
No abstract record available.
Inventors
- 👤 Robert V Jensen
- 👤 Robert A Laff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:30
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/02; C30B15/04; C30B13/00; C30B13/08; C30B13/10; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S420/00; Y10S420/903; Y10S56/00; Y10S56/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF DISSOLVING A CONDUCTIVITY-TYPE-DETERMINING INPURITY MATERIAL INTO A SEMI-CONDUCTIVE MATERIAL WHOSE MELTING POINT IS HIGHER THAN THE BOILING POINT OF SAID IMPURITY MATERIAL COMPRISING THE STEPS OF MELTING SAID SEMI-CONDUCTIVE MATERIAL AND: ADDING SAID IMPURITY MATERIAL INTO SAID SEMI-CONDUCTIVE MATERIAL WHEN LIQUIDIZED IN THE FORM OF AN ALLOY CONSISTING ESSENTIALLY OF SAID IMPURITY MATERIAL AND A CARRIER MATERIAL DIFFERENT FROM SAID SEMI-CONDUCTIVE MATERIAL WHOSE BOILING POINT IS HIGHER THAN THE MELTING POINT OF SAID SEMI-CONDUCTIVE MATERIAL, THE COMPOSITION OF SAID ALLOY BEING SUCH THAT IT IS SINGLE PHASE AND HAS A BOILING POINT HIGHER THAN THE MELTING POINT OF SAID SEMI-CONDUCTIVE MATERIAL.
Claim 2
Independent Claim
104 words
THE METHOD OF DISSOLVING A CONDUCTIVITY-TYPE-DETERMINING INPURITY MATERIAL INTO A SEMI-CONDUCTIVE MATERIAL WHOSE MELTING POINT IS HIGHER THAN THE BOILING POINT OF SAID IMPURITY MATERIAL COMPRISING THE STEPS OF MELTING SAID SEMI-CONDUCTIVE MATERIAL AND: ADDING SAID IMPURITY MATERIAL INTO SAID SEMI-CONDUCTIVE MATERIAL WHEN LIQUIDIZED IN THE FORM OF AN ALLOY CONSISTING ESSENTIALLY OF SAID IMPURITY MATERIAL AND A CARRIER MATERIAL DIFFERENT FROM SAID SEMI-CONDUCTIVE MATERIAL WHOSE BOILING POINT IS HIGHER THAN THE MELTING POINT OF SAID SEMI-CONDUCTIVE MATERIAL, THE COMPOSITION OF SAID ALLOY BEING SUCH THAT IT IS SINGLE PHASE AND HAS A BOILING POINT HIGHER THAN THE MELTING POINT OF SAID SEMI-CONDUCTIVE MATERIAL.
References Cited (Backward Citations)
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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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |