Patent US3228104A successfully refreshed from Google Patents.
US3228104A
Expired / Lapsed
US
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Method of attaching an electric connection to a semiconductor device
Assignee: Siemens Schuckertwerke AG
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Filing: 1962-04-18
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Granted: 1966-01-11
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Emeis Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:58
CPC Classifications
H; H10; H10W; H10W99/00; H01; H01B; H01B1/00; Y; Y10; Y10S; Y10S148/00; Y10S148/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF PRODUCING AN ELECTRIC CONNECTION FOR A SEMICONDUCTOR ELEMENT HAVING A MONOCRYSTALLINE SEMICONDUCTOR BODY WITH AT LEAST ONE P-N JUNCTION AND A PLANAR LARGE-AREA CONTACT ELECTRODE ESSENTIALLY OF A EUTECTIC GOLDSEMICONDUCTOR COMPOSITION JOINED WITH THE BODY, WHICH COMPRISED THE STEPS OF PLACING INTO FACE-TO-FACE AREA CONTACT WITH THE GOLD-SEMICONDUCTOR ELECTRODE OF CONDUCTIVE MEMBER CONSISTING AT LEAST AT THE CONTACTING SURFACE OF METAL FROM THE GROUP CONSISTING OF GOLD, SILVER AND COPPER, AND HEATING THE RESULTING ASSEMBLY UNDER PRESSURE, OF
Claim 2
Independent Claim
81 words
THE METHOD OF PRODUCING AN ELECTRIC CONNECTION FOR A SEMICONDUCTOR ELEMENT HAVING A MONOCRYSTALLINE SEMICONDUCTOR BODY WITH AT LEAST ONE P-N JUNCTION AND A PLANAR LARGE-AREA CONTACT ELECTRODE ESSENTIALLY OF A EUTECTIC GOLDSEMICONDUCTOR COMPOSITION JOINED WITH THE BODY, WHICH COMPRISED THE STEPS OF PLACING INTO FACE-TO-FACE AREA CONTACT WITH THE GOLD-SEMICONDUCTOR ELECTRODE OF CONDUCTIVE MEMBER CONSISTING AT LEAST AT THE CONTACTING SURFACE OF METAL FROM THE GROUP CONSISTING OF GOLD, SILVER AND COPPER, AND HEATING THE RESULTING ASSEMBLY UNDER PRESSURE, OF
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |