US3575733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam techniques in integrated circuits
Assignee: Texas Instruments Inc
•
Filing: 1968-08-26
•
Granted: 1971-04-20
•
Expires: 1988-08-26
Abstract
Abstract DISCLOSED IN A METHOD OF PRODUCING HILLS OR PROTUBERANCES OF MATERIAL OF AND UPON A CRYSTALLINE SUBSTRATE, EACH HILL OR PROTUBERANCE HAVING THE SAME CRYSTAL ORIENTATION AS THE SUBSTRATE, BY DIRECTING THE BEAM OF ENERGY UPON THE SURFACE OF THE SUBSTRATE FOR A TIME SUFFICIENT TO PRODUCE SUCH HILLS OR PROTUBERANCES.
Inventors
- 👤 Olin B Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:06
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/01; H10D84/0112; H10D84/02; H10D84/03; H10D84/038; H10P; H10P95/00; H10P95/90; H10W; H10W10/00; H10W10/01; H10W10/011; H10W10/019; H10W10/10; Y; Y10; Y10S; Y10S117/00; Y10S117/905; Y10S148/00; Y10S148/026; Y10S148/071; Y10S148/085; Y10S438/00; Y10S438/974; Y10S438/977; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |