Fabrication of low dielectric constant film based on CaO–B2O3–SiO2 glass/mullite composites for LTCC application

Wang, Dongjian; Fu, Yao; Zhang, Caomeng; Zhou, Hongqing

doi:10.1007/s10854-020-03422-7

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…Cordierite and mullite belong to the group of the most popular and cheap ceramic materials characterized by a low dielectric permittivity. Low dielectric permittivity (4.8–6 for cordierite and 6–7.2 for mullite), low dielectric loss, low thermal expansion coefficient and good mechanical strength are the desired properties of these materials in microwave applications [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. The disadvantage of their high sintering temperatures can be overcome by adding low melting glasses.…”

Section: Introductionmentioning

confidence: 99%

Structural, Thermal and Dielectric Properties of Low Dielectric Permittivity Cordierite-Mullite-Glass Substrates at Terahertz Frequencies

et al. 2021

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Glass–ceramic composites containing cordierite, mullite, SiO2 glass and SiO2-B2O3-Al2O3-BaO-ZrO2 glass were fabricated in a process comprising solid state synthesis, milling, pressing and sintering. Thermal behavior, microstructure, composition and dielectric properties in the Hz-MHz, GHz and THz ranges were examined using a heating microscope, differential thermal analysis, thermogravimetry, scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction analysis, impedance spectroscopy, transmission method and time domain spectroscopy (TDS). The obtained substrates exhibited a low dielectric permittivity of 4.0–4.8. Spontaneously formed closed porosity dependent on the sintering conditions was considered as a factor that decreased the effective dielectric permittivity.

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Section: Introductionmentioning

confidence: 99%

Structural, Thermal and Dielectric Properties of Low Dielectric Permittivity Cordierite-Mullite-Glass Substrates at Terahertz Frequencies

et al. 2021

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“…investigated CaO‐Al 2 O 3 ‐SiO 2 glass‐ceramic and reported a densification temperature of 850°C with a dielectric constant (loss) of 5.5 (0.002) at 1 MHz. Wang et al 9 . studied CaO–B 2 O 3 –SiO 2 glass/60 wt% mullite composites densified at 830°C and had a dielectric constant (loss) = 6.20 (0.0011) at 7 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al 8 investigated CaO-Al 2 O 3 -SiO 2 glass-ceramic and reported a densification temperature of 850 • C with a dielectric constant (loss) of 5.5 (0.002) at 1 MHz. Wang et al 9 studied CaO-B 2 O 3 -SiO 2 glass/60 wt% mullite composites densified at 830 • C and had a dielectric constant (loss) = 6.20 (0.0011) at 7 MHz. Luo et al 10 studied CaO-B 2 O 3 -SiO 2 glass/Al 2 O 3 composites and found that Al 2 O 3 /50 wt% glass was densified at 875 • C and had a dielectric constant (loss) of 8.06 (0.0012) at 7 GHz and thermal conductivity of 3.1 W/m.K.…”

Section: Introductionmentioning

confidence: 99%

Effect of nano aluminum nitride filler on mechanical, thermal, and dielectric properties of the glass/mullite composites for low‐temperature co‐fired ceramic applications

Bilaç¹,

Duran²

2023

J Am Ceram Soc.

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Mullite/glass/nano aluminum nitride (AlN) filler (1–10 wt% AlN) composites were successfully fabricated for the low‐temperature co‐fired ceramics applications that require densification temperatures lower than 950°C, high thermal conductivity to dissipate heat and thermal expansion coefficient matched to Si for reliability, and low dielectric constant for high signal transmission speed. Densification temperatures were ≤825°C for all composites due to the viscous sintering of the glass matrix. X‐ray diffraction proved that AlN neither chemically reacted with other phases nor decomposed with temperature. The number of closed pores increased with the AlN content, which limited the property improvement expected. A dense mullite/glass/AlN (10 wt%) composite had a thermal expansion coefficient of 4.44 ppm/°C between 25 and 300°C, thermal conductivity of 1.76 W/m.K at 25°C, dielectric constant (loss) of 6.42 (0.0017) at 5 MHz, flexural strength of 88 MPa and elastic modulus of 82 GPa, that are comparable to the commercial low temperature co‐fired ceramics products.

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Processing and properties of nano-hBN-added glass/ceramic composites for low-temperature co-fired ceramic applications

Bilaç

Dursun

Duran

2022

J. Korean Ceram. Soc.

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Fabrication of low dielectric constant film based on CaO–B2O3–SiO2 glass/mullite composites for LTCC application

Cited by 5 publications

References 21 publications

Structural, Thermal and Dielectric Properties of Low Dielectric Permittivity Cordierite-Mullite-Glass Substrates at Terahertz Frequencies

Structural, Thermal and Dielectric Properties of Low Dielectric Permittivity Cordierite-Mullite-Glass Substrates at Terahertz Frequencies

Effect of nano aluminum nitride filler on mechanical, thermal, and dielectric properties of the glass/mullite composites for low‐temperature co‐fired ceramic applications

Processing and properties of nano-hBN-added glass/ceramic composites for low-temperature co-fired ceramic applications

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