Patent US3288045A successfully refreshed from Google Patents.
US3288045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing articles having arrays of similar patterns
Assignee: International Business Machines Corp
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Filing: 1965-05-04
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Granted: 1966-11-29
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Expires: 1985-05-04
Abstract
No abstract record available.
Inventors
- 👤 William E Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:43
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/70; G03F7/70425; G03F7/70475
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
A METHOD FOR PRODUCING A CIRCUIT ASSEMBLY HAVING A PLURALITY OF CIRCUIT ELEMENTS FORMED THEREIN IN A NUMBER OF DISCRETE LOCATIONS, WITH EACH SAID ELEMENTS COMPRISING A NUMBER OF ACCURATELY REGISTERED MEMBERS COMPRISING THE STEPS OF: PROVIDING AN ARRAY OF INDIVIDUAL LENSES OF THE SAME ORIENTATION AND FOCAL DISTANCE IN A FIRST LOCATION; COATING SAID ASSEMBLY WITH A PHOTOSENSITIVE SUBSTANCE AND POSITIONING SAID ASSEMBLY IN CONTACT WITH SAID ARRAY; PROJECTING A MASTER PATTERN OF A FIRST CIRCUIT MEMBER THROUGH SAID LENS ARRAY FOR AN INTERVAL OF TIME AND FROM A PREDETERMINED LOCATION TO EXPOSE SAID COATING AND TO ESTABLISH A SET OF IMAGES THEREIN LIKE SAID FIRST CIRCUIT MEMBER; DEVELOPING SAID COATING TO ESTABLISH AN APERTURED LAYER ON SAID CIRCUIT ASSEMBLY FOR CONTROLLING A SUBSEQUENT FIRST SEQUENCE OF FABRICATION STEPS; MAINTAINING SAID LENS ARRAY IN SAID FIRST LOCATION; RECOATING SAID ASSEMBLY A SECOND TIME WITH A PHOTOSENSITIVE SUBSTANCE UPON COMPLETION OF SAID FIRST SEQUENCE OF FABRICATION STEPS AND POSITIONING SAID ASSEMBLY ADJACENT SAID ARRAY; PROJECTING A MASTER PATTERN OF A SECOND CIRCUIT MEMBER THROUGH SAID LENS ARRAY FOR AN INTERVAL OF TIME AND FROM SAID PREDETERMINED LOCATION TO EXPOSE SAID SECOND COATING TO ESTABLISH THEREIN A SET OF IMAGES LIKE SAID SECOND CIRCUIT MEMBER; AND DEVELOPING SAID SECOND COATING TO ESTABLISH AN APERTURED LAYER ON SAID CIRCUIT ASSEMBLY FOR CONTROLLING A SUBSEQUENT SECOND SEQUENCE OF FABRICATION STEPS.
Claim 2
Independent Claim
227 words
A METHOD FOR PRODUCING A CIRCUIT ASSEMBLY HAVING A PLURALITY OF CIRCUIT ELEMENTS FORMED THEREIN IN A NUMBER OF DISCRETE LOCATIONS, WITH EACH SAID ELEMENTS COMPRISING A NUMBER OF ACCURATELY REGISTERED MEMBERS COMPRISING THE STEPS OF: PROVIDING AN ARRAY OF INDIVIDUAL LENSES OF THE SAME ORIENTATION AND FOCAL DISTANCE IN A FIRST LOCATION; COATING SAID ASSEMBLY WITH A PHOTOSENSITIVE SUBSTANCE AND POSITIONING SAID ASSEMBLY IN CONTACT WITH SAID ARRAY; PROJECTING A MASTER PATTERN OF A FIRST CIRCUIT MEMBER THROUGH SAID LENS ARRAY FOR AN INTERVAL OF TIME AND FROM A PREDETERMINED LOCATION TO EXPOSE SAID COATING AND TO ESTABLISH A SET OF IMAGES THEREIN LIKE SAID FIRST CIRCUIT MEMBER; DEVELOPING SAID COATING TO ESTABLISH AN APERTURED LAYER ON SAID CIRCUIT ASSEMBLY FOR CONTROLLING A SUBSEQUENT FIRST SEQUENCE OF FABRICATION STEPS; MAINTAINING SAID LENS ARRAY IN SAID FIRST LOCATION; RECOATING SAID ASSEMBLY A SECOND TIME WITH A PHOTOSENSITIVE SUBSTANCE UPON COMPLETION OF SAID FIRST SEQUENCE OF FABRICATION STEPS AND POSITIONING SAID ASSEMBLY ADJACENT SAID ARRAY; PROJECTING A MASTER PATTERN OF A SECOND CIRCUIT MEMBER THROUGH SAID LENS ARRAY FOR AN INTERVAL OF TIME AND FROM SAID PREDETERMINED LOCATION TO EXPOSE SAID SECOND COATING TO ESTABLISH THEREIN A SET OF IMAGES LIKE SAID SECOND CIRCUIT MEMBER; AND DEVELOPING SAID SECOND COATING TO ESTABLISH AN APERTURED LAYER ON SAID CIRCUIT ASSEMBLY FOR CONTROLLING A SUBSEQUENT SECOND SEQUENCE OF FABRICATION STEPS.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |