Variable inductance element using an inductor conductor

Details Variable inductance element using an inductor conductor Variable inductance element using an inductor conductor

1994-11-14

1997-05-13

Tran, Minhloan

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Passive components in ics

257532, 257379, 333185, H01L 2900

Patent

active

056295537

ABSTRACT:
A variable inductance element comprising an inductor conductor 10 having a predetermined shape formed on an insulation layer 40 on the surface of a semiconductor substrate 42, switches 16 and 24 for shorting portions of the inductor conductor 10, and input/output terminals 12 and 14 provided at the respective ends of the inductor conductor 10. When switches 16 and/or 24 is in the on state, the function as an inductor having a smaller inductance than the overall inductor conductor 10 is obtained. The inductance of this variable inductance element can be changed by external control, while manufacturing is easy and formation in a unitized manner with an integrated circuit or other semiconductor device is enabled.

REFERENCES:
patent: 4926292 (1990-05-01), Maple
patent: 4931753 (1990-06-01), Nelson et al.
patent: 5021758 (1991-06-01), Lane
patent: 5070317 (1991-12-01), Bhagat
patent: 5281932 (1994-01-01), Even-Or

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