Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2007-12-11
2007-12-11
Mai, Anh (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C336S223000, C336S232000
Reexamination Certificate
active
11156526
ABSTRACT:
The present invention provides a coil structure capable of improving a differential transmission characteristic by reducing capacitance as much as possible. A common mode choke coil is constructed so that a section of each of two coil patterns constructing a thin film coil has an inverted trapezoid shape which is bilaterally asymmetrical. Because of the structural characteristic that the section of each of the two coil patterns has an inverted trapezoid shape which is bilaterally asymmetrical, the facing area of the two coil patterns contributing to capacitance is minimized. Thus, the capacitance of the thin film coil can be reduced as much as possible.
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Aoki Susumu
Kaji Rina
Kamijima Akifumi
Sato Yoshikazu
Takeo Kenji
Mai Anh
TDK Corporation
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