Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Patent
1995-03-13
1997-03-11
Larkins, William D.
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
336200, 336232, H01F 504, H05K 116, H01L 2701
Patent
active
056104332
ABSTRACT:
A high value inductor with a high Q factor is formed using integrated circuit techniques to have a plurality of layers, where each layer has formed on it two or more coils. The coils in the various layers are interconnected in series. Although the resulting inductor exhibits a relatively high resistance, the number of coil turns is large. Since inductance increases in proportion to the square of the number of coil turns, the resulting inductor has a very high Q factor. A cross-over arrangement located in one level provides compact connections between turns in a different level.
REFERENCES:
patent: 4313152 (1982-01-01), Vranken
patent: 5095357 (1992-03-01), Andoh et al.
patent: 5157576 (1992-10-01), Takaya et al.
patent: 5227659 (1993-07-01), Hubbard
Issaq Enayet U.
Merrill Richard B.
Larkins William D.
National Semiconductor Corporation
Ogonowsky Brian D.
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