Magnetic and dielectric composite electronic device

Details Magnetic and dielectric composite electronic device Magnetic and dielectric composite electronic device

2008-02-29

2010-11-16

Ha, Nguyen T (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S301400, C361S311000, C361S313000, C361S321200, C361S321500

Reexamination Certificate

active

07835135

ABSTRACT:
There is a provided a magnetic and dielectric composite electronic device, comprising: a first region with a plurality of magnetic material sheets being layered; a second region with a plurality of dielectric material sheets being layered; and a third region as a middle layer interposed between the first region and the second region, including a Zn—Ti based material to prevent diffusion of the materials during co-firing of the first region and the second region, and the first region, the second region and the third region are integrally formed in a single body. In accordance with the present invention, the low pass filter including the function of the varistor is realized to obtain the EMI function and the ESD control effect. Furthermore, the one chip electronic device having the composite functions is manufactured by a simple process, and the interdiffusion between the different materials forming the magnetic and the dielectric parts is prevented to secure the durability and electrical characteristics of the product.

REFERENCES:
patent: 5825609 (1998-10-01), Andricacos et al.
patent: 5872696 (1999-02-01), Peters et al.
patent: 6195248 (2001-02-01), Kunishi et al.
patent: 6400553 (2002-06-01), Yoshii et al.
patent: 7085118 (2006-08-01), Inoue et al.
patent: 7277270 (2007-10-01), Sato et al.

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