US2759133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
•
Filing: 1952-10-22
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Granted: 1956-08-14
•
Expires: 1972-10-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:54
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/131; H10D; H10D99/00; H10P; H10P95/00; H10W40/00; H10W40/20; H10W40/22; H10W40/60; H10W40/611; H10W72/00; H10W72/851; H10W76/00; H10W76/40; H10W76/42; H10W76/47; H10W40/231; H10W40/237
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING THEREIN ZONES OF DIFFERENT CONDUCTIVITY TYPES SEPARATED BY A RECTIFYING BARRIER, AND A HEAT RADIATING MEMBER IN INTIMATE THERMAL CONTACT WITH SAID BARRIER.
Claim 2
Dependent Claim
33 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTOR MATERIAL HAVING THEREIN ZONES OF DIFFERENT CONDUCTIVITY TYPES SEPARATED BY A RECTIFYING BARRIER, AND A HEAT RADIATING MEMBER IN INTIMATE THERMAL CONTACT WITH SAID BARRIER.
Claim 3
Independent Claim
107 words
THE METHOD OF PREPARING A SEMICONDUCTOR DEVICE COMPRISING THE STEPS OF ALLOYING A SEMICONDUCTOR DEVICE SUBSTANCE INTO A BODY OF ALLOYING QUANTITIES OF IMPURITY TYPE OF CONDUCTIVITY TO FORM REGIONS OF THE OPPOSITE TYPE CONDUCTIVITY, PORTIONS OF SAID SUBSTANCES REMAINING PROJECTING ABOVE THE SURFACES OF SAID BODY, POSITIONING A HEAT RADIATING MEMBER ADJACENT TO ONE OF SAID PORTIONS, SAID MEMBER HAVING AN OPENING IN THE BODY THEREOF, PLACING A DROP OF BONDING MATERIAL IN SAID OPENING IN CONTACT WITH SAID MEMBER AND SAID PORTION OF PROJECTING SUBSTANCE, AND HEATING SAID DROP OF BONDING MATERIAL TO FORM A BOND BETWEEN SAID MEMBER AND SAID PORTION OF SAID SUBSTANCE.
Claim 4
Independent Claim
107 words
THE METHOD OF PREPARING A SEMICONDUCTOR DEVICE COMPRISING THE STEPS OF ALLOYING A SEMICONDUCTOR DEVICE SUBSTANCE INTO A BODY OF ALLOYING QUANTITIES OF IMPURITY TYPE OF CONDUCTIVITY TO FORM REGIONS OF THE OPPOSITE TYPE CONDUCTIVITY, PORTIONS OF SAID SUBSTANCES REMAINING PROJECTING ABOVE THE SURFACES OF SAID BODY, POSITIONING A HEAT RADIATING MEMBER ADJACENT TO ONE OF SAID PORTIONS, SAID MEMBER HAVING AN OPENING IN THE BODY THEREOF, PLACING A DROP OF BONDING MATERIAL IN SAID OPENING IN CONTACT WITH SAID MEMBER AND SAID PORTION OF PROJECTING SUBSTANCE, AND HEATING SAID DROP OF BONDING MATERIAL TO FORM A BOND BETWEEN SAID MEMBER AND SAID PORTION OF SAID SUBSTANCE.
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |