US3581385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fabricating large scale integrated circuits with discretionary wiring
Assignee: Texas Instruments Inc
•
Filing: 1967-10-04
•
Granted: 1971-06-01
•
Expires: 1987-10-04
Abstract
Abstract A MET''OD FOR PRODUCING A LARGE SCALE INTEGRATED CIRCUIT ARRAY WITH DISCRETIONARY WIRING BY DETERMINING THE DISTORTION IN THE RECTANGULAR PATTER PRODUCED BY A COMPUTER CONTROLLED CATHODE RAY TUBE, PRODUCING AN ARRAY OF INTEGRATED CIRCUITS ON A SINGLE SEMICONDUCTOR SLICE IN WHICH THE CIRCUITS ARE DISPOSED IN A CORRESPONDINGLY DISTORTED PATTERN, TESTING THE CIRCUITS IN SITU TO DETERMINE THE OPERATIVE CIRCUITS, PRODUCING A PHOTOMASK BY MEANS OF THE CATHODE RAY TUBE, DEFINING THE WIRING NEEDED TO INTERCONNECT THE OPERATIVE CIRCUITS INTO THE DESIRED SYSTEM, AND PATTERNING A METAL FILM BY MEANS OF THE PHOTOMASK.
Inventors
- 👤 Jay W Lathrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:56
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/90; H10W; H10W20/00; H10W20/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |