Patent US3300841A successfully refreshed from Google Patents.
US3300841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of junction passivation and product
Assignee: Texas Instruments Inc
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Filing: 1962-07-17
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Granted: 1967-01-31
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Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 Harry E Fisher
- 👤 Jr Elam C Frye
- 👤 Milton K Hicks
- 👤 Charles R Schraeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/131; H10D; H10D99/00; H10W74/40; H10W74/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF FABRICATING A SEMICONDUCTOR DEVICE OF THE TYPE HAVING AT LEAST ONE P-N JUNCTION EMERGING AT A SURFACE OF A SEMICONDUCTOR BODY AND AN OXIDE LAYER ADJACENT SAID SURFACE OVER A POINT OF THE EMERGENCE OF SAID P-N JUNCTION, COMPRISING THE STEPS OF: (A) FUSING TO THE SURFACE OF SAID OXIDE LAYER A FIRST GLASS, SAID FIRST GLASS BEING SUBSTANTIALLY FREE OF CONTAMINANTS AND HAVING A THERMAL COEFFICIENT OF EXPANSION SUBSTANTIALLY CORRESPONDING WITH THAT OF SAID SEMICONDUCTOR BODY, (B) THEREAFTER ESTABLISHING CONTACT WITH CONDUCTIVE LEADS AT EXPOSED SURFACE AREAS OF SAID BODY IN AT LEAST TWO ZONES ON OPPOSITE SIDES OF SAID AT LEAST ONE P-N JUNCTION, AND (C) THEREAFTER FUSING A SECOND GLASS SOLELY TO SAID CONDUCTIVE LEADS, THEREBY ENCAPSULATING SAID BODY.
Claim 2
Independent Claim
125 words
THE METHOD OF FABRICATING A SEMICONDUCTOR DEVICE OF THE TYPE HAVING AT LEAST ONE P-N JUNCTION EMERGING AT A SURFACE OF A SEMICONDUCTOR BODY AND AN OXIDE LAYER ADJACENT SAID SURFACE OVER A POINT OF THE EMERGENCE OF SAID P-N JUNCTION, COMPRISING THE STEPS OF: (A) FUSING TO THE SURFACE OF SAID OXIDE LAYER A FIRST GLASS, SAID FIRST GLASS BEING SUBSTANTIALLY FREE OF CONTAMINANTS AND HAVING A THERMAL COEFFICIENT OF EXPANSION SUBSTANTIALLY CORRESPONDING WITH THAT OF SAID SEMICONDUCTOR BODY, (B) THEREAFTER ESTABLISHING CONTACT WITH CONDUCTIVE LEADS AT EXPOSED SURFACE AREAS OF SAID BODY IN AT LEAST TWO ZONES ON OPPOSITE SIDES OF SAID AT LEAST ONE P-N JUNCTION, AND (C) THEREAFTER FUSING A SECOND GLASS SOLELY TO SAID CONDUCTIVE LEADS, THEREBY ENCAPSULATING SAID BODY.
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |