Mutual induction circuit

Details Mutual induction circuit Mutual induction circuit

2005-08-09

2005-08-09

Nguyen, Tuyen T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

Reexamination Certificate

active

06927664

ABSTRACT:
A transformer element1is formed on a semiconductor substrate using first and second wiring layers arranged parallel to each other in a vertical direction, and includes a first inductor2and a second inductor3. The first and second inductors2and3are each provided using the first and second wiring layers such that if projected into one of the first and second wiring layers either along a vertical upward direction or a vertical downward direction, outlines of a projection form a symmetrical shape with respect to a predetermined reference plane, and portions corresponding to intersections between the outlines of the projection on the wiring layer are formed so as to be out of contact with each other.

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Thomas Y.K. Wong et al., “A 10 Gb/s AIGaAs/GaAs HBT High Power Fully-differential Limiting Distributed Amplifier for III-V Mach-Zehnder Modulator”, Gallium Arsenide Integrated Circuit (GAAS IC) Symposium, 1995, Technical Digest 1995, 17thAnnual IEEE, San Diego, CA, USA, Oct. 29-Nov. 1, 1995, New York, NY, USA, IEEE, US, Oct. 29, 1995, pp 201-204, XP010196760, ISBN, 0-7803-2966-X.

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