US3242391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold-germanium eutectic alloy for contact and alloy medium on semiconductor devices
Assignee: Texas Instruments Inc
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Filing: 1962-03-02
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Granted: 1966-03-22
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Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Lee V Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:23
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/30; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3013; C; C22; C22C; C22C5/00; C22C5/02; H10W72/071; H10W72/073; H10W72/07331; H10W72/07336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF MOUNTING A SEMICONDUCTOR DEVICE ONTO A HEADER COMPRISING THE STEPS OF: (A) COATING A PORTION OF THE SEMICONDUCTOR DEVICE WITH NICKEL, (B) COATING A PORTION OF THE HEADER WITH GOLD, (C) ASSEMBLING SAID DEVICE AND SAID HEADER TOGETHER WITH AN INTERPOSING ALLOY LAYER CONSISTING OF ABOUT 88% GOLD AND 12% GERMANIUM, AND (D) HEATING THE ASSEMBLY TO A TEMPERATURE IN EXCESS OF 356*C. TO BOND SAID NICKEL AND SAID GOLD.
Claim 2
Independent Claim
73 words
THE METHOD OF MOUNTING A SEMICONDUCTOR DEVICE ONTO A HEADER COMPRISING THE STEPS OF: (A) COATING A PORTION OF THE SEMICONDUCTOR DEVICE WITH NICKEL, (B) COATING A PORTION OF THE HEADER WITH GOLD, (C) ASSEMBLING SAID DEVICE AND SAID HEADER TOGETHER WITH AN INTERPOSING ALLOY LAYER CONSISTING OF ABOUT 88% GOLD AND 12% GERMANIUM, AND (D) HEATING THE ASSEMBLY TO A TEMPERATURE IN EXCESS OF 356*C. TO BOND SAID NICKEL AND SAID GOLD.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |