Skip to content
DraconiticResearch
Search Sources API
197,768 studies31 sourcesUpdated 44 min ago
Peer-reviewedCC BY 4.0Inorganics

Effects of Bi2O3/B2O3 Ratio in Lead-Free Glass on Sintering Behavior and Thick-Film Performance of Gold Conductor Pastes

  • Xinyu Zhou1
  • Renlong Zhu1
  • Zhiqiang Xia1
  • Qiang Wen1
  • Zhen Pang1
  • Zhuo Qian1
  • Xianglei Yu2
  • Junpeng Li3
  • Fuchun Huang3
  • Guoyou Gan1
  1. 1Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  2. 2Engineering Training Center, Kunming University of Science and Technology, Kunming 650500, China
  3. 3Sino-Platinum Electronic Materials (Yunnan) Co., Ltd., Kunming 650503, China
Open at sourceDOICite

Abstract

High-reliability thick-film gold conductor pastes serve as core functional materials for high-end electronic packaging. Traditional lead-containing glass binders suffer from environmental toxicity, restricting their large-scale green applications. Herein, a series of Bi2O3–B2O3–TeO2 lead-free glasses with tunable Bi2O3/B2O3 ratios was prepared to explore the regulation of glass composition in the intrinsic structure, thermal behavior and sintering performance of gold thick films. The Bi2O3/B2O3 ratio strongly influences melt flow: excessive Bi2O3 induces local segregation of the glass phase, while surplus B2O3 weakens wettability and pore-filling capacity. Optimized A3 glass achieves synergy between glass flow and sintering kinetics of gold particles. The resulting P3 film has porosity of 3.12%, sheet resistance of 2.92 mΩ/sq and interfacial adhesion of 3.78 N/mm2. Its sheet resistance variations remain merely +0.96% and −1.02% after two refiring cycles, delivering good conductivity, strong interfacial bonding and stable electrical behavior upon refiring. This work offers experimental support for compositional design of lead-free glass binders for gold conductor pastes.

Related

  1. Copper smelting slag valorization in waste-derived clay ceramics: sintering behavior, microstructural evolution, engineering performance, and leaching behavior
    Dias Tolegenov, Madeniyet Yelubay, Sabit Maussumbayev +7
    RSC advancesPeer-reviewedCC BYFull textGeneral chemistryEurope PMCPMC
  2. Design Guidelines for Block Copolymer‐Templated In2O3 Nanowires: Linking Morphology, Sintering, and Volatile Organic Compounds Sensing Performance
    Przemyslaw Pula, Zofia Z. Zawistowska, Mariya V. Dobrotvorska +4
    Small StructuresPeer-reviewedCC BYFull textGeneral chemistryGeneral physicsDOAJ
  3. Analyzing the tribological and thermal performance of polytetrafluoroethylene/recycled tire rubber composites fabricated by spark plasma sintering
    H. Boulman, F. Giovannelli, I.El Aboudi +6
    Composites Part C: Open AccessPeer-reviewedCC BYFull textGeneral chemistryHAL
  4. Hydraulic Pressure and Sintering Temperature and Time Effects on the Performance of Niobium Selenide Designed as Microwave Resonators
    Najla Mohmmed Khusayfan, Atef Fayez Qasrawi, Hazem Kholoqi Khanfar +1
    ACS OmegaPeer-reviewedCC BY-NC-ND 4.0Full textGeneral chemistryCrossref
  5. Lignin-Assisted Dispersion and Iohexol Retention in Lead-Free Bi2O3/Iohexol-Loaded Waterborne Polyurethane Sheets for Diagnostic X-Ray Attenuation
    PolymersPeer-reviewedCC BYFull textMaterials & polymersEurope PMC

Cite

BibTeXRIS
BibTeX
@article{zhou2026effects,
  title = {{Effects of Bi2O3/B2O3 Ratio in Lead-Free Glass on Sintering Behavior and Thick-Film Performance of Gold Conductor Pastes}},
  author = {Xinyu Zhou and Renlong Zhu and Zhiqiang Xia and Qiang Wen and Zhen Pang and Zhuo Qian and Xianglei Yu and Junpeng Li and Fuchun Huang and Guoyou Gan},
  journal = {Inorganics},
  year = {2026},
  month = oct,
  doi = {10.3390/inorganics14110274},
  url = {https://www.mdpi.com/2304-6740/14/11/274},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Effects of Bi2O3/B2O3 Ratio in Lead-Free Glass on Sintering Behavior and Thick-Film Performance of Gold Conductor Pastes
AU  - Xinyu Zhou
AU  - Renlong Zhu
AU  - Zhiqiang Xia
AU  - Qiang Wen
AU  - Zhen Pang
AU  - Zhuo Qian
AU  - Xianglei Yu
AU  - Junpeng Li
AU  - Fuchun Huang
AU  - Guoyou Gan
PY  - 2026
DA  - 2026/10/26
JO  - Inorganics
DO  - 10.3390/inorganics14110274
UR  - https://www.mdpi.com/2304-6740/14/11/274
AB  - High-reliability thick-film gold conductor pastes serve as core functional materials for high-end electronic packaging. Traditional lead-containing glass binders suffer from environmental toxicity, restricting their large-scale green applications. Herein, a series of Bi2O3–B2O3–TeO2 lead-free glasses with tunable Bi2O3/B2O3 ratios was prepared to explore the regulation of glass composition in the intrinsic structure, thermal behavior and sintering performance of gold thick films. The Bi2O3/B2O3 ratio strongly influences melt flow: excessive Bi2O3 induces local segregation of the glass phase, while surplus B2O3 weakens wettability and pore-filling capacity. Optimized A3 glass achieves synergy between glass flow and sintering kinetics of gold particles. The resulting P3 film has porosity of 3.12%, sheet resistance of 2.92 mΩ/sq and interfacial adhesion of 3.78 N/mm2. Its sheet resistance variations remain merely +0.96% and −1.02% after two refiring cycles, delivering good conductivity, strong interfacial bonding and stable electrical behavior upon refiring. This work offers experimental support for compositional design of lead-free glass binders for gold conductor pastes.
SN  - 2304-6740
ER  -