Effect of SrO content on microstructure of Bi2O3-B2O3-ZnO-BaO-SrO low-melting glass frit and joining performance of sodalime glass substrates

Zhang, Luobin; Sun, Qianqian; Wang, Jintao; Zhang, Zheng; Zhang, Wei Wei; Wang, Jianqiang; Chen, Hongtao; Li, Mingyu

doi:10.1016/j.jallcom.2021.159707

Cited by 17 publications

(9 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As BaO content increases, [BO 4 ] units in the glass network continuously transform into [BO 3 ] units, increasing NBO content and decreasing connectivity, resulting in a looser network structure. 20 40 The split Bi4f peak suggests Bi 3+ and Bi 5+ coexist. Since Bi-O has more electrons, oxygen and Bi ions repel each other.…”

Section: Resultsmentioning

confidence: 99%

“…One promising technology is incorporating network-modifying agents into bismuth borate glasses, which can stabilize the glass structure and hinder crystallization, further lowering the glass working temperature. [18][19][20][21] Alkaline earth oxides like SrO exhibit favorable effects on modulating the sealing performance of the bismuth-based glass. 20 The influence of BaO on the structure and properties of bismuth-based lowmelting point glass, revealed that Ba 2+ can enter the gaps of the glass network, weakening existing bridging oxygen (BO) structures and reducing the softening temperature.…”

Section: Introductionmentioning

confidence: 99%

“…[18][19][20][21] Alkaline earth oxides like SrO exhibit favorable effects on modulating the sealing performance of the bismuth-based glass. 20 The influence of BaO on the structure and properties of bismuth-based lowmelting point glass, revealed that Ba 2+ can enter the gaps of the glass network, weakening existing bridging oxygen (BO) structures and reducing the softening temperature. 22 For practical SiC applications, not only the encapsulating temperature but also the mechanical properties of glass should be adjusted.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Chen,

Zhang

et al. 2023

J Am Ceram Soc.

View full text Add to dashboard Cite

Silicon carbide (SiC) power devices are attracting significant attention due to their outstanding stability in high‐voltage, high‐temperature, and high‐frequency environments. To replace toxic Pb‐based glass, there is an urgent need to develop Pb‐free glass for SiC power device encapsulation, considering its superior electrical insulation properties and processing capabilities. Here, we developed a Bi‐based glass for effective encapsulation practical of SiC power devices. By increasing the content of glass modifier BaO, the structure of bismuth borate glass can be tuned to reduce glass network density, leading to the transition of structural units from [BO4] to [BO3]. The softened temperature is reduced to 363.4°C with the BaO content increasing to 15 mol%. After encapsulating the SiC power devices using Bi‐based glass, the glass demonstrated a reverse breakdown voltage of 650 V and an extremely low leakage current. Therefore, our work provided a route for adapting Pb‐free‐based low‐melting glass for encapsulating SiC devices and offered potential for advanced semiconductor packaging.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Chen,

Zhang

et al. 2023

J Am Ceram Soc.

View full text Add to dashboard Cite

show abstract

“…[ 34,35 ] The addition of Sr 2+ can enhance density and promote the transmittance of glass matrix. [ 36 ] In addition, glass modifiers (SrO‐Na 2 O‐K 2 O) provide congruent oxygen atoms for B 2 O 3 when forming [BO 4 ]. [ 35,37 ] When it cooled sharply into water, short chains presenting in the glass did not have enough time to connect together.…”

Section: Three Major Aspects Of Fabricating Desired Pigsmentioning

confidence: 99%

Exploiting Desired Phosphor‐In‐Glass for All‐Inorganic Solid‐State White Illumination

Bao

Liang

Zhao

et al. 2022

Laser & Photonics Reviews

View full text Add to dashboard Cite

Solid‐state white lighting applications with high brightness, low power consumption and long operating life have gradually dominated the modern industrial illumination market. For applications in white light‐emitting diodes (WLEDs) and white‐lighting laser diodes (WLDs), Phosphor‐in‐Glass (PiG), owing to its facile process, high efficiency and excellent chromaticity tunability, stands out as an optimal choice among various types of color converters. Currently, research in yellow‐emitting Y3Al5O12:Ce3+ (YAG: Ce) phosphors combined with different glass system has reached a mature stage and the poor illumination is a major bottleneck. Moreover, to realize high‐quality white lighting, exploiting full‐color PiGs is of great importance for its commercialization. Herein, the multicolour PiGs their successfully obtained by deliberately matching different color‐emitting phosphors with the glass matrix. Glass composition selection rules for specific phosphors their proposed based on investigations of glass protection mechanism and the corrosion reaction between phosphors and glass matrix. In addition, an astonishing YAG: Ce PiG phenomenon (zero thermal quenching) is founded and discussed. As for practical applications, high‐quality 5‐W chip‐on‐board (COB) WLEDs their constructed by utilizing simple matches of colorful PiGs. Assembled WLDs modules also rendered a high‐efficiency and stable lighting source. These results dramatically inspire the development of high‐quality solid‐state white lighting applications.

show abstract

“…For example, Bi 2 O 3 ‐ZnO‐B 2 O 3 glasses can serve as the matrix for dispersing phosphor particles (e.g., Ce‐doped Y 3 Al 5 O 12 ) to form wavelength converters for white light‐emitting diodes 39 – 41 . Bi 2 O 3 ‐ZnO‐B 2 O 3 glasses also hold potential for low‐temperature bonding, for example, with soda‐lime glass substrates, 42 ferrite to ferrite, 43 and sapphire to sapphire 44 . Research is also being conducted on the potential of this glass system for use in nuclear waste immobilization 45 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of transparent Bi₂O₃‐ZnO‐B₂O₃ glass by conventional sintering at low temperatures

Shyu,

2023

J Am Ceram Soc.

View full text Add to dashboard Cite

Glass components fabricated by the sintering route have wide‐ranging applications. However, one issue is that the crystallization tendency of glass powders often leads to residual pore‐glass interfaces and crystal‐glass interfaces, thereby causing strong light scattering and rendering the sintered glass opaque. This issue is particularly pronounced in glasses with a low glass transition temperature (Tg) due to their weak bonding and thus high crystallization tendency. In the present study, a Bi2O3‐ZnO‐B2O3 glass with a low Tg of 364°C was fabricated using the conventional sintering method to explore whether transparent glass materials can be obtained. The temperature range of crystallization of the glass powders was analyzed using differential scanning calorimetry. X‐ray diffraction was employed to analyze the crystalline phases formed in the sintered glasses. The microstructure of the sintered glasses was examined using scanning electron microscopy. The optical transmittance of the sintered glasses was measured using ultraviolet‐visible spectroscopy. The results show that transparent sintered glasses with the highest transmittance of 54% at the wavelength of 650 nm can be obtained by using a coarser initial particle size, lower forming pressure, and an appropriate sintering temperature/time (430°C/30 min). It is suggested that this combination of processing parameters can suppress glass crystallization while maintaining a low glass viscosity during sintering.

show abstract

Effect of SrO content on microstructure of Bi2O3-B2O3-ZnO-BaO-SrO low-melting glass frit and joining performance of sodalime glass substrates

Cited by 17 publications

References 43 publications

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Exploiting Desired Phosphor‐In‐Glass for All‐Inorganic Solid‐State White Illumination

Preparation of transparent Bi₂O₃‐ZnO‐B₂O₃ glass by conventional sintering at low temperatures

Contact Info

Product

Resources

About

Effect of SrO content on microstructure of Bi2O3-B2O3-ZnO-BaO-SrO low-melting glass frit and joining performance of sodalime glass substrates

Cited by 17 publications

References 43 publications

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Tuning the thermal and insulation properties of bismuth borate glass for SiC power electronics packaging

Exploiting Desired Phosphor‐In‐Glass for All‐Inorganic Solid‐State White Illumination

Preparation of transparent Bi2O3‐ZnO‐B2O3 glass by conventional sintering at low temperatures

Contact Info

Product

Resources

About

Preparation of transparent Bi₂O₃‐ZnO‐B₂O₃ glass by conventional sintering at low temperatures