US3370207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer contact system for semiconductor devices including gold and copper layers
Assignee: General Electric Co
•
Filing: 1964-02-24
•
Granted: 1968-02-20
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 David A Fabel
- 👤 Robert M Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:37
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/50; H10W; H10W72/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A SEMICONDUCTOR DEVICE OF THE RECTIFYING JUNCTION TYPE REQUIRING EXTERNAL ELECTRICAL CONNECTION THERETO INCLUDING A BODY OF SEMICONDUCTOR MATERIAL AND CONTACT MEANS COMPRISING A FIRST LAYER OF GOLD BONDED DIRECTLY TO SAID SEMICONDUCTOR BODY A LAYER OF COPPER BONDED DIRECTLY TO SAID FIRST LAYER OF GOLD AND A SECOND LAYER OF GOLD BONDED DIRECTLY TO SAID LAYER OF COPPER.
Claim 2
Dependent Claim
59 words
A SEMICONDUCTOR DEVICE OF THE RECTIFYING JUNCTION TYPE REQUIRING EXTERNAL ELECTRICAL CONNECTION THERETO INCLUDING A BODY OF SEMICONDUCTOR MATERIAL AND CONTACT MEANS COMPRISING A FIRST LAYER OF GOLD BONDED DIRECTLY TO SAID SEMICONDUCTOR BODY A LAYER OF COPPER BONDED DIRECTLY TO SAID FIRST LAYER OF GOLD AND A SECOND LAYER OF GOLD BONDED DIRECTLY TO SAID LAYER OF COPPER.
Claim 3
Dependent Claim
70 words
A SEMICONDUCTOR DEVICE OF THE RECTIFYING JUNCTION TYPE REQUIRING EXTERNAL ELECTRICAL CONNECTION THERETO INCLUDING A BODY OF SEMICONDUCTOR MATERIAL AND OHMIC CONTACT MEANS COMPRISING A FIRST LAYER OF GOLD BONDED DIRECTLY TO SAID SEMICONDUCTOR MATERIAL A SECOND LAYER OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP OF ARSENIC, ANTIMONY AND INDIUM BONDED DIRECTLY TO SAID LAYER OF GOLD AND A LAYER OF COPPER BONDED DIRECTLY TO SAID SECOND LAYER.
Claim 4
Dependent Claim
70 words
A SEMICONDUCTOR DEVICE OF THE RECTIFYING JUNCTION TYPE REQUIRING EXTERNAL ELECTRICAL CONNECTION THERETO INCLUDING A BODY OF SEMICONDUCTOR MATERIAL AND OHMIC CONTACT MEANS COMPRISING A FIRST LAYER OF GOLD BONDED DIRECTLY TO SAID SEMICONDUCTOR MATERIAL A SECOND LAYER OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP OF ARSENIC, ANTIMONY AND INDIUM BONDED DIRECTLY TO SAID LAYER OF GOLD AND A LAYER OF COPPER BONDED DIRECTLY TO SAID SECOND LAYER.
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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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |