scholarly journals Characterization of Glass Insulating Thick Films with Ag Conductors for Multilayer Packages

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 494
Author(s):  
Jun Fang ◽  
Renli Fu ◽  
Xiguang Gu ◽  
Xinyao Zhang ◽  
Guojun Li
Keyword(s):  
Activation Energy ◽  
Multilayer Structure ◽  
Silver Content ◽  
Glass Ceramics ◽  
Dielectric Strength ◽  
Crystallization Activation Energy ◽  
Sio2 Glass ◽  
Packaging Structure ◽  
Main Component

In this paper, an insulating film was successfully prepared by sintering 35 wt % CaO-15 wt % Al2O3-10 wt % B2O3-40 wt % SiO2 glass at 875 °C. After sintering, the main component of the insulating film was glass-ceramics. The main crystal phase was CaAl2Si2O8, and the crystallization activation energy was 189.76 kJ/mol. After preparing the insulating film, its color turned yellow, and the diffusion of Ag was found by XPS and XRD data. When the temperature increased to 875 °C, the color of the insulating film became lighter, and the silver content decreased. The adhesion of the multilayer structure could reach 875 N. The dielectric constant of the insulating film in the multilayer structure was approximately 5, and the dielectric loss was 0.0011. After sintering, the dielectric strength of the insulating film could reach 13.11 kV/mm, which fully meets the requirements of a complex packaging structure.

Crystallization Behavior and Microstructure of B2O3-Al2O3-SiO2 Glass-Ceramics

2008 ◽  
Vol 51 ◽  
pp. 149-154
Author(s):  
Han Ning Xiao ◽  
Tao Sun ◽  
Hua Bin Liu ◽  
Yin Cheng
Keyword(s):  
Activation Energy ◽  
Metal Oxides ◽  
Crystalline Phase ◽  
Crystallization Behavior ◽  
Glass Ceramics ◽  
Earth Metal ◽  
Crystallization Activation Energy ◽  
Alkali Earth Metal ◽  
Alkali Earth ◽  
Bulk Crystallization

The influences of B2O3/SiO2 ratio and different alkali earth metal oxides MO (M= Ba, Mg, Ca) on the crystallization behavior of B2O3-Al2O3-SiO2 (BAS) glass were investigated by means of DSC, XRD and SEM. With the reduction of B2O3/SiO2 ratio, the crystallization activation energy increases at first and then decreases, reaching the minimum value of 375.4 kJ·mol-1 when the B2O3/SiO2 ratio is 2.2. The crystalline indices (n) are all more than 4, which indicates that the glass is in bulk crystallization. When the glass was heated to 800°C, the primary precipitated crystalline phase was Al4B2O9. With the increase of temperature up to 1100°C, Al18B4O33 and Al5BO9 appeared and became the major crystalline phases in BAS glass-ceramics.

Preparation and characterization of Co2+-doped ZnO–Al2O3–SiO2 glass-ceramics by the sol–gel method

2003 ◽  
Vol 38 (4) ◽  
pp. 705-711 ◽  
Author(s):  
X.L. Duan ◽  
D.R. Yuan ◽  
D. Xu ◽  
M.K. Lu ◽  
X.Q. Wang ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ceramics ◽  
Sio2 Glass ◽  
Gel Method ◽  
Sol Gel Method ◽  
Doped Zno

Characterization of Fe2O3-CaO-SiO2 Glass Ceramics Prepared by Sol-Gel

2014 ◽  
Vol 624 ◽  
pp. 114-118 ◽  
Author(s):  
Yao Yao Wang ◽  
Bin Li ◽  
Yong Ya Wang
Keyword(s):  
Sol Gel ◽  
Glass Ceramics ◽  
Optimum Process ◽  
Process Conditions ◽  
X Ray Diffraction ◽  
Crystallization Activation Energy ◽  
Treatment Technology ◽  
X Ray ◽  
Heat Treatment Technology

Ferromagnetic glass ceramics with magnetism and biological activity could be used for magnetic induction hyperthermia. In this study Fe2O3-CaO-SiO2glass-ceramics were prepared by sol-gel method. The sample was characterized by X-ray diffraction (XRD) and differential thermal analysis (DTA). The results showed that the major phases of the sample are wollastonite and magnetite and the crystallization activation energy of sample is 189.3KJ/mol, which would provide a theoretical basis for the establishment of the optimum process conditions of heat treatment technology.

Field-Assisted Isothermal Oriented Crystallization of SrO-TiO2-SiO2 Polar Glass-Ceramics

2009 ◽  
Vol 66 ◽  
pp. 49-52 ◽  
Author(s):  
Hong Cheng Wang ◽  
Qi Ming Liu ◽  
Jin Shu Cheng
Keyword(s):  
Activation Energy ◽  
Electric Field ◽  
Glass Surface ◽  
Crystallization Process ◽  
Glass Ceramics ◽  
Experimental Results ◽  
Piezoelectric Constant ◽  
Crystallization Activation Energy ◽  
Oriented Growth ◽  
Oriented Crystallization

The polar glass-ceramics of 2.0SrO-1.0TiO2-2.9SiO2 system were prepared by the process of recrystallization with additional applied isothermal and electric field. The results showed that the glass-ceramics piezoelectric constant d33 was 12×10-12 C/N. The study of its oriented crystallization by SEM and XRD indicated that Sr2TiSi2O8 crystal performed oriented growth, which was perpendicular to the glass surface and made it be orientally crystallized with the assisted the isothermal and electric field. The further experimental results showed that the additional electric field reduced the crystallization activation energy, which provided a force for the isothermal orientating crystallization process.

scholarly journals Concurrent sinter-crystallization and microwave dielectric characterization of CaO-MgO-TiO2-SiO2 glass-ceramics

2020 ◽  
Vol 8 (2) ◽  
pp. 234-244
Author(s):  
Mahboubeh Kiani Zitani ◽  
Sara Banijamali ◽  
Christian Rüssel ◽  
Sirous Khabbaz Abkenar ◽  
Pozhhan Mokhtari ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Sio2 Glass ◽  
Dielectric Characterization ◽  
Microwave Dielectric
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