US3307239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making integrated semiconductor devices
Assignee: AT&T Inc
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Filing: 1964-02-18
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Granted: 1967-03-07
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Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Martin P Lepselter
- 👤 Daniel A Naymik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:17
CPC Classifications
H; H10; H10P; H10P95/00; H10W; H10W20/00; H10W20/40; Y; Y10; Y10S; Y10S257/00; Y10S257/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF MAKING AN INTEGRATED CIRCUIT ELEMENT COMPRISING FABRICATING A MOSAIC OF VITREOUSLY BONDED INDIVIDUAL SEMICONDUCTOR WAFERS IN THE FORM OF A SLICE, DIFFUSING INTO AT LEAST A PORTION OF SAID WAFERS SIGNIFICANT IMPURITIES TO FORM PN JUNCTIONS IN SAID WAFERS, FORMING A PROTECTIVE OXIDE COATING ON SAID DIFFUSED SURFACE, OPENING HOLES THROUGH SAID OXIDE COATING TO EXPOSE UNDERLYING SEMICONDUCTOR MATERIAL, DEPOSITING A THIN LAYER OF A FIRST METAL ON SAID OXIDE AND SAID EXPOSED SEMICONDUCTORS MATERIAL, DEPOSITING A HEAVIER LAYER OF A SECOND METAL ON SAID FIRST METAL, DEPOSITING ON A LIMITED PORTION OF SAID MOSAIC A HEAVY LAYER OF GOLD INTERCONNECTING INDIVIDUAL SEMICONDUCTOR DEVICES OF SAID ARRAY THEREBY DEFINING IN-
Claim 2
Independent Claim
113 words
THE METHOD OF MAKING AN INTEGRATED CIRCUIT ELEMENT COMPRISING FABRICATING A MOSAIC OF VITREOUSLY BONDED INDIVIDUAL SEMICONDUCTOR WAFERS IN THE FORM OF A SLICE, DIFFUSING INTO AT LEAST A PORTION OF SAID WAFERS SIGNIFICANT IMPURITIES TO FORM PN JUNCTIONS IN SAID WAFERS, FORMING A PROTECTIVE OXIDE COATING ON SAID DIFFUSED SURFACE, OPENING HOLES THROUGH SAID OXIDE COATING TO EXPOSE UNDERLYING SEMICONDUCTOR MATERIAL, DEPOSITING A THIN LAYER OF A FIRST METAL ON SAID OXIDE AND SAID EXPOSED SEMICONDUCTORS MATERIAL, DEPOSITING A HEAVIER LAYER OF A SECOND METAL ON SAID FIRST METAL, DEPOSITING ON A LIMITED PORTION OF SAID MOSAIC A HEAVY LAYER OF GOLD INTERCONNECTING INDIVIDUAL SEMICONDUCTOR DEVICES OF SAID ARRAY THEREBY DEFINING IN-
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |