Patent UST934009I4 successfully refreshed from Google Patents.
UST934009I4
Expired / Lapsed
US
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Abel ching nam sheng composite transistor
Assignee: —
•
Filing: 1974-04-11
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Granted: 1975-05-06
•
Expires: 1994-04-11
Abstract
Abstract THE COMPOSITE TRANSISTOR INTEGRATED WITHIN A COMMON SEMICONDUCTOR BODY COMPRISES A COMMON-EMITTER AMPLIFIER CONNECTION OF A LATERAL-STRUCTURE TRANSISTOR WITH ITS BASE-EMITTER JUNCTION PARALLEL BY A DIODE-CONNECTION OF A VERTICAL-STRUCTURE TRANSISTOR. THE MAGNITUDE OF THE "COMMON-EMITTER FORWARD CURRENT GAIN" OF THE COMPOSITE TRANSISTOR IS THE RATIO OF A SATURATION CURRENT OF THE LATERALSTRUCTURE TRANSISTOR TO THE SATURATION CURRENT OF THE VERTICAL STRUCTURE TRANSISTOR, WHICH CURRENT GAIN IS SHOWN TO BE INDEPENDENT OF TEMPERATURE.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:55
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/34; H03F3/343; H03F3/347; H10; H10D; H10D84/00; H10D84/60; H10D84/63
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |