US3206340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating semiconductors
Assignee: Westinghouse Electric Corp
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Filing: 1960-06-22
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Granted: 1965-09-14
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Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 John P Stelmak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:32
CPC Classifications
H; H10; H10P; H10P95/00; H10W; H10W20/00; H10W20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS FOR FORMING A LOW RESISTANCE, NON-RECTIFYING PATH BETWEEN TWO POINTS OF A BODY OF A SEMICONDUCTOR MATERIAL HAVING A METAL LAYER AFFIXED TO THE BODY AT EACH OF THE TWO POINTS TO BE JOINED, BY SAID LOW RESISTANCE NONRECTIFYING PATH, COMPRISING AFFIXING A METAL LAYER TO THE BODY OF SEMICONDUCTOR MATERIAL AT EACH OF THE TWO POINTS TO BE JOINED, THEREAFTER DISCHARGING A CHARGED CAPACITOR BETWEEN THE TWO POINTS SO THAT THE SEMICONDUCTOR MATERIAL IN THE IMMEDIATE AREA OF DISCHARGE AND THE METAL LAYER ARE MELTED, AND RECRYSTALLIZING THE MOLTEN PORTION OF THE BODY OF SEMICONDUCTOR MATERIAL TO ROOM TEMPERATURE, WHEREBY THE MOLTEN MATERIAL BY COOLING THE RECRYSTALLIZED PORTION FORMING A PATH OF LOW RESISTANCE TO AN ELECTRICAL CURRENT FLOWING IN EITHER DIRECTION, BETWEEN THE TWO POINTS, SAID PATH HAVING SUBSTANTIALLY NO RECTIFYING PROPERTIES.
Claim 2
Dependent Claim
136 words
A PROCESS FOR FORMING A LOW RESISTANCE, NON-RECTIFYING PATH BETWEEN TWO POINTS OF A BODY OF A SEMICONDUCTOR MATERIAL HAVING A METAL LAYER AFFIXED TO THE BODY AT EACH OF THE TWO POINTS TO BE JOINED, BY SAID LOW RESISTANCE NONRECTIFYING PATH, COMPRISING AFFIXING A METAL LAYER TO THE BODY OF SEMICONDUCTOR MATERIAL AT EACH OF THE TWO POINTS TO BE JOINED, THEREAFTER DISCHARGING A CHARGED CAPACITOR BETWEEN THE TWO POINTS SO THAT THE SEMICONDUCTOR MATERIAL IN THE IMMEDIATE AREA OF DISCHARGE AND THE METAL LAYER ARE MELTED, AND RECRYSTALLIZING THE MOLTEN PORTION OF THE BODY OF SEMICONDUCTOR MATERIAL TO ROOM TEMPERATURE, WHEREBY THE MOLTEN MATERIAL BY COOLING THE RECRYSTALLIZED PORTION FORMING A PATH OF LOW RESISTANCE TO AN ELECTRICAL CURRENT FLOWING IN EITHER DIRECTION, BETWEEN THE TWO POINTS, SAID PATH HAVING SUBSTANTIALLY NO RECTIFYING PROPERTIES.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |