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US2878148A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of manufacturing semiconductive devices

Assignee: Individual
•
Filing: 1957-04-26
•
Granted: 1959-03-17
•
Expires: 1977-04-26
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Abstract

No abstract record available.

Inventors

  • 👤 Beale Julian Robert Anthony

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:20
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; A; A47; A47B; A47B31/00; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; H10P; H10P95/00; H10P95/50; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W99/00; H10W72/00; H10W72/50; H10W72/531; H10W72/5363; H10W72/541; H10W72/5434; H10W72/551; H10W72/552; H10W72/5522; Y; Y10; Y10S; Y10S228/00; Y10S228/904

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 205 words
A METHOD OF FORMING AN ALLOY ELECTRODE ON A SEMICONDUCTIVE BODY, COMPRISING PROVIDING AN APERTURED JIG MEMBER ON THE SEMI-CONDUCTIVE BODY SO THAT THE APERTURE EXTENDS SUBSTANTIALLY VERTICALLY ABOVE THE BODY, INTRODUCING A WIRE COMPRISING A CONDUCTIVITY-DETERMINING IMPURITY INTO THE APERTURE SO THAT ONE END CONTACTS THE BODY, SAID WIRE BEING ABLE TO ALLOY WITH THE SEMI-CONDUCTIVITY BODY WHEN CONTACTING THE LATTER AT A TEMPERATURE BELOW THE MELTING POINT OF THE WIRE AND THE BODY, HEATING THE ASSEMBLY AT A TEMPERATURE ABOVE THE MELTING POINTS OF THE ALLOY BUT BELOW THE MELTING POINTS OF THE WIRE AND BODY SO THAT THE WIRE END MELTS WITHIN THE CONFINES OF THE JIGIFORMING AN ALLOY WITH THE CONTACTED PORTION OF THE SEMICONDUCTIVE BODY AND SO THAT THE WIRE GRAVITY-SAGS DOWNWARD AS ITS END CONTACTING THE SEMI-CONDUCTIVE BODY CONTINUES TO MELT, THEREAFTER ARRESTING THE DOWNWARD MOTION OF THE WIRE AT A POINT REMOTE FROM ITS CONTACTING END AFTER A PREDETERMINED PORTION OF THE WIRE END HAS BEEN MELTED AND TO PREVENT FURTHER MELTING OF THE SOLID WIRE BY TERMINATING ITS CONTACT WITH THE SEMI-CONDUCTIVE BODY, AND THEREAFTER COOLING THE ASSEMBLY, CAUSING THE MELT TO REFREEZE AND PRODUCING AN IMPURITY-DOPED REGROWN SEMICONDUCTIVE REGION ON AN UNMELTED PORTION OF THE BODY.
Claim 2
Independent Claim 205 words
A METHOD OF FORMING AN ALLOY ELECTRODE ON A SEMICONDUCTIVE BODY, COMPRISING PROVIDING AN APERTURED JIG MEMBER ON THE SEMI-CONDUCTIVE BODY SO THAT THE APERTURE EXTENDS SUBSTANTIALLY VERTICALLY ABOVE THE BODY, INTRODUCING A WIRE COMPRISING A CONDUCTIVITY-DETERMINING IMPURITY INTO THE APERTURE SO THAT ONE END CONTACTS THE BODY, SAID WIRE BEING ABLE TO ALLOY WITH THE SEMI-CONDUCTIVITY BODY WHEN CONTACTING THE LATTER AT A TEMPERATURE BELOW THE MELTING POINT OF THE WIRE AND THE BODY, HEATING THE ASSEMBLY AT A TEMPERATURE ABOVE THE MELTING POINTS OF THE ALLOY BUT BELOW THE MELTING POINTS OF THE WIRE AND BODY SO THAT THE WIRE END MELTS WITHIN THE CONFINES OF THE JIGIFORMING AN ALLOY WITH THE CONTACTED PORTION OF THE SEMICONDUCTIVE BODY AND SO THAT THE WIRE GRAVITY-SAGS DOWNWARD AS ITS END CONTACTING THE SEMI-CONDUCTIVE BODY CONTINUES TO MELT, THEREAFTER ARRESTING THE DOWNWARD MOTION OF THE WIRE AT A POINT REMOTE FROM ITS CONTACTING END AFTER A PREDETERMINED PORTION OF THE WIRE END HAS BEEN MELTED AND TO PREVENT FURTHER MELTING OF THE SOLID WIRE BY TERMINATING ITS CONTACT WITH THE SEMI-CONDUCTIVE BODY, AND THEREAFTER COOLING THE ASSEMBLY, CAUSING THE MELT TO REFREEZE AND PRODUCING AN IMPURITY-DOPED REGROWN SEMICONDUCTIVE REGION ON AN UNMELTED PORTION OF THE BODY.

References Cited (Backward Citations)

US2736847A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-03-16 1962-09-15 1963-03-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-03-16 1966-09-15 1967-03-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-03-16 1970-09-15 1971-03-17 $7700.00 Window Closed / Lapsed

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