Characterization of Inductor with Ni–Zn–Cu Ferrite Embedded in B2O3–SiO2 Glass
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概要
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In this study, inductors using a new low-temperature cofirable ceramic (LTCC) design, in which Ni–Zn–Cu ferrite was buried in B2O3–SiO2 glass within the core of the spiral silver coil, were fabricated. The inductance and quality factor of the inductor with embedded ferrite are larger than those of pure B2O3–SiO2 glass. Ni–Zn–Cu ferrite was incompatible with the B2O3–SiO2 glass during the cofiring process due to sintering shrinkage mismatch. The incompatibility was resolved when 35 wt % Al2O3 was doped into the B2O3–SiO2 glass, which produces a glass-ceramic, and 2 wt % of Bi2O3 was fluxed into the Ni–Zn–Cu ferrite as a sintering aid. The addition of 2 wt % of Bi2O3 not only enhances densification, but also increases the permeability of Ni–Zn–Cu ferrite.
- 2007-09-15
著者
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Wang Sea-fue
Department Of Materials And Mineral Engineering National Taipei University Of Technology
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Jao Jui-Chu
Department of Material Science and Engineering, National Chiao Tung University, Hsinchu 300, Taiwan, R.O.C.
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Li Pang
Department of Material Science and Engineering, National Chiao Tung University, Hsinchu 300, Taiwan, R.O.C.
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