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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sugawa, Y. Ishidate, K. Sonehara, M. Sato, T. |
| Copyright Year | 1965 |
| Abstract | Our research objective is to realize the basic technology for a next generation package-level power grid (PLPG) for plural application large scale integrated circuits (LSIs). In this study, a carbonyl-iron powder (CIP)/epoxy composite magnetic core, for large-current power inductor used for the main dc-dc converter in the PLPG, has been fabricated and evaluated. 54 vol.%-CIP/epoxy composite core made by screen-printing had a relative permeability of 7.5 and loss tangent of about 0.03 at 100 MHz. The planar power inductor using composite core was fabricated and evaluated, which had a quasi closed magnetic circuit consisting of low permeability composite core and embedded 35-μm-thick, two-turn copper spiral coil. The fabricated inductor with a 1-mm-square in size had 5.5 nH inductance, Q-factor of 15 at 100 MHz, and 18 mΩ dc coil resistance. Inductance was constant even when the superimposed dc current increased up to around 5.5 A. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4172 |
| Ending Page | 4175 |
| Page Count | 4 |
| File Size | 1216735 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 49 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic cores Inductors Permeability Saturation magnetization Spirals Powders Coils planar power inductor Carbonyl-iron/epoxy composite magnetic core package-level power grid (PLPG) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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