US3127285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor condensation doping method
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:40
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/01; H10W70/04; H10P; H10P95/00; H10W72/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12889
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD OF DEPOSITING A UNIFORM COATING OF AN ACTIVE IMPURITY UPON A GOLD SURFACE OF A METALLIC ELECTRICAL CONTACTING ELEMENT, SAID METHOD CONSISTING OF THE STEPS OF: (A) PLACING A PREDETERMINED ACTIVE IMPURITY BEARING SUBSTANCE AND SAID METALLIC ELEMENT INTO A CONTAINER, SAID PREDETERMINED ACTIVE IMPURITY BEARING SUBSTANCE HAVING A VAPOR PRESSURE, OF A PREDETERMINED TEMPERATURE NOT IN EXCESS OF 900*C., AT LEAST ONE HUNDRED TIMES GREATER THAN A PREDETERMINED PRESSURE, SAID PREDETERMINED PRESSURE BEING NOT IN EXCESS OF 100 MICRONS HG; (B) EVACUATING SAID CONTAINER TO SAID PREDETERMINED PRESSURE, AND MAINTAINING SAID PREDETERMINED PRESSURE WITHIN SAID CONTAINER; (C) HEATING SAID ACTIVE IMPURITY BEARING SUBSTANCE AND SAID METALLIC ELEMENT WITHIN SAID CONTAINER TO SAID PREDETERMINED TEMPERATURE TO CREATE A HOMOGENEOUS DOPANT-RICH ATMOSPHERE WITHIN SAID CONTAINER; (D) COOLING SAID ACTIVE IMPURITY AND SAID METALLIC ELEMENT WITHIN SAID CONTAINER TO CAUSE THE DEPOSITION OF ATOMS OF SAID ACTIVE IMPURITY UPON THE SURFACE OF SAID METALLIC ELEMENT; AND, (E) RELEASING THE VACUUM TO RETURN THE INTERIOR OF SAID CONTAINER TO A ATMOSPHERIC PRESSURE.
Claim 2
Independent Claim
171 words
THE METHOD OF DEPOSITING A UNIFORM COATING OF AN ACTIVE IMPURITY UPON A GOLD SURFACE OF A METALLIC ELECTRICAL CONTACTING ELEMENT, SAID METHOD CONSISTING OF THE STEPS OF: (A) PLACING A PREDETERMINED ACTIVE IMPURITY BEARING SUBSTANCE AND SAID METALLIC ELEMENT INTO A CONTAINER, SAID PREDETERMINED ACTIVE IMPURITY BEARING SUBSTANCE HAVING A VAPOR PRESSURE, OF A PREDETERMINED TEMPERATURE NOT IN EXCESS OF 900*C., AT LEAST ONE HUNDRED TIMES GREATER THAN A PREDETERMINED PRESSURE, SAID PREDETERMINED PRESSURE BEING NOT IN EXCESS OF 100 MICRONS HG; (B) EVACUATING SAID CONTAINER TO SAID PREDETERMINED PRESSURE, AND MAINTAINING SAID PREDETERMINED PRESSURE WITHIN SAID CONTAINER; (C) HEATING SAID ACTIVE IMPURITY BEARING SUBSTANCE AND SAID METALLIC ELEMENT WITHIN SAID CONTAINER TO SAID PREDETERMINED TEMPERATURE TO CREATE A HOMOGENEOUS DOPANT-RICH ATMOSPHERE WITHIN SAID CONTAINER; (D) COOLING SAID ACTIVE IMPURITY AND SAID METALLIC ELEMENT WITHIN SAID CONTAINER TO CAUSE THE DEPOSITION OF ATOMS OF SAID ACTIVE IMPURITY UPON THE SURFACE OF SAID METALLIC ELEMENT; AND, (E) RELEASING THE VACUUM TO RETURN THE INTERIOR OF SAID CONTAINER TO A ATMOSPHERIC PRESSURE.
References Cited (Backward Citations)
US2695852A
Cited
US2916810A
Cited
US3065534A
Cited
US2898528A
Cited
US2873222A
Cited
US3050667A
Cited
US3030562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |