US3615138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dichroic mirror alignment system
Assignee: Hugle Ind Inc
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Filing: 1969-10-31
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Granted: 1971-10-26
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Expires: 1989-10-31
Abstract
Abstract AN OPTICAL SYSTEM FOR OBSERVING MANIPULATION OF TWO OBJECTS TO BE RELATED IN A PREDETERMINED MANNER, I.E., A MICROSCOPE AND A DICHORIC MIRROR TO PROVIDE SUPERIMPOSED IMAGES OF A FLIP-CHIP AND OF A SUBSTRATE, WHICH ARE TO BE BONDED TOGETHER AFTER A DESIRED POSITIONAL RELATION BETWEEN PATTERNS FOR ELECTRICAL CONNECTIONS ON BOTH ARE ESTABLISHED. THE OPTICAL AXIS OF THE MICROSCOPE INTERSECTS THE DICHROIC MIRROR SUCH THAT A REFLECTED IMAGE OF THE FLIP-CHIP AND A TRANSMITTED IMAGE OF THE SUBSTRATE ARE FORMED FOR VIEWING. EACH HAVE A DISTINCTIVE COLOR, AIDING IN THE MANIPULATION.
Inventors
- 👤 Donald G Pedrotti
- 👤 Rainer Reimann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:13
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0016
Claims Analysis
Total Claims: 0
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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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |