Multilayered Electromagnetic Interference Shielding Structures for Suppressing Magnetic Field Coupling

Multilayered Electromagnetic Interference Shielding Structures for Suppressing Magnetic Field... Journal of ELECTRONIC MATERIALS https://doi.org/10.1007/s11664-018-6387-2 2018 The Minerals, Metals & Materials Society Multilayered Electromagnetic Interference Shielding Structures for Suppressing Magnetic Field Coupling 1,3 1 ATOM O. WATANABE , PULUGURTHA MARKONDEYA RAJ, 2 2 1 DENNY WONG, RAVI MULLAPUDI, and RAO TUMMALA 1.—Packaging Research Center, Georgia Institute of Technology, 813 Ferst Dr NW, Atlanta, GA 30332, USA. 2.—Tango Systems, San Jose, CA, USA. 3.—e-mail: atom@gatech.edu Control of electromagnetic interference (EMI) represents a major challenge for emerging consumer electronics, the Internet of Things, automotive electron- ics, and wireless communication systems. This paper discusses innovative EMI shielding materials and structures that offer higher shielding effective- ness compared with copper. To create high shielding effectiveness in the fre- quency range of 1 MHz to 100 MHz, multilayered shielding topologies with electrically conductive and nanomagnetic materials were modeled, designed, fabricated, and characterized. In addition, suppression of out-of-plane and in- plane magnetic-field coupling noise with these structures is compared with that of traditional single-layer copper or nickel–iron films. Compared with single-layered copper shields, multilayered structures consisting of copper, nickel–iron, and titanium showed a 3.9 times increase in shielding effective- ness in suppressing out-of-plane or vertically coupled noise and 1.3 times in- crease in lateral coupling. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Electronic Materials Springer Journals

Multilayered Electromagnetic Interference Shielding Structures for Suppressing Magnetic Field Coupling

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Publisher
Springer US
Copyright
Copyright © 2018 by The Minerals, Metals & Materials Society
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics
ISSN
0361-5235
eISSN
1543-186X
D.O.I.
10.1007/s11664-018-6387-2
Publisher site
See Article on Publisher Site

Abstract

Journal of ELECTRONIC MATERIALS https://doi.org/10.1007/s11664-018-6387-2 2018 The Minerals, Metals & Materials Society Multilayered Electromagnetic Interference Shielding Structures for Suppressing Magnetic Field Coupling 1,3 1 ATOM O. WATANABE , PULUGURTHA MARKONDEYA RAJ, 2 2 1 DENNY WONG, RAVI MULLAPUDI, and RAO TUMMALA 1.—Packaging Research Center, Georgia Institute of Technology, 813 Ferst Dr NW, Atlanta, GA 30332, USA. 2.—Tango Systems, San Jose, CA, USA. 3.—e-mail: atom@gatech.edu Control of electromagnetic interference (EMI) represents a major challenge for emerging consumer electronics, the Internet of Things, automotive electron- ics, and wireless communication systems. This paper discusses innovative EMI shielding materials and structures that offer higher shielding effective- ness compared with copper. To create high shielding effectiveness in the fre- quency range of 1 MHz to 100 MHz, multilayered shielding topologies with electrically conductive and nanomagnetic materials were modeled, designed, fabricated, and characterized. In addition, suppression of out-of-plane and in- plane magnetic-field coupling noise with these structures is compared with that of traditional single-layer copper or nickel–iron films. Compared with single-layered copper shields, multilayered structures consisting of copper, nickel–iron, and titanium showed a 3.9 times increase in shielding effective- ness in suppressing out-of-plane or vertically coupled noise and 1.3 times in- crease in lateral coupling.

Journal

Journal of Electronic MaterialsSpringer Journals

Published: May 31, 2018

References

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