US3361592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device manufacture
Assignee: Raytheon Co
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Filing: 1964-03-16
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Granted: 1968-01-02
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Quetsch
- 👤 Frank J Saia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:39
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10D; H10D99/00; H10P; H10P14/00; H10P14/40; H10P14/46; H10W72/00; H10W74/00; H10W74/40; H10W74/43; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W76/161; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/936; Y10S428/941; Y10S438/00; Y10S438/98; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12535; Y10T428/12597; Y10T428/12639; Y10T428/12646; Y10T428/12674; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF MANUFACTURING SILICON SEMICONDUCTOR DEVICES, WHICH COMPRISES: (A) FORMING A PASSIVATING MASK ON A SILICON SURFACE HAVING AN APERTURE INTHE MASK DEFINING A CONTACT AREA; (B) DEPOSITING A FIRST FILM OF GOLD ON THE CONTACT AREA; (C) DEPOSITING A SECOND FILM OF SILVER ON THE FIRST FILM IN A SUFICIENT QUANTITY TO EXTEND SUBSTANTIALLY ABOVE THE SURFACE OF LTHE PASSIVATING MASK, AND (D) HEATING TO BETWEEN ABOUT 500*C. AND 960*C. TO BOND SAID FILMS TO THE SILICON AT THE CONTACT AREA.
Claim 2
Independent Claim
83 words
A METHOD OF MANUFACTURING SILICON SEMICONDUCTOR DEVICES, WHICH COMPRISES: (A) FORMING A PASSIVATING MASK ON A SILICON SURFACE HAVING AN APERTURE INTHE MASK DEFINING A CONTACT AREA; (B) DEPOSITING A FIRST FILM OF GOLD ON THE CONTACT AREA; (C) DEPOSITING A SECOND FILM OF SILVER ON THE FIRST FILM IN A SUFICIENT QUANTITY TO EXTEND SUBSTANTIALLY ABOVE THE SURFACE OF LTHE PASSIVATING MASK, AND (D) HEATING TO BETWEEN ABOUT 500*C. AND 960*C. TO BOND SAID FILMS TO THE SILICON AT THE CONTACT AREA.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |