Sol-gel lead borate glass films for low-temperature bonding

A spin-coating/sol-gel process for preparing thin solder glass films based on lead borate with a low working temperature is reported. Results of preliminary bonding experiments are also presented. A solution of various metallorganic compounds was used as the precursor. It was possible to deposit a d...

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Bibliographic Details
Published in:Journal of materials science letters 1995-01, Vol.14 (6), p.431-432
Main Authors: SPIERINGS, G. A. C. M, VAN HAL, H. A. M, KEUR, W. C
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Liquid phase epitaxy
deposition from liquid phases (melts, solutions, and surface layers on liquids)
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
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Summary:A spin-coating/sol-gel process for preparing thin solder glass films based on lead borate with a low working temperature is reported. Results of preliminary bonding experiments are also presented. A solution of various metallorganic compounds was used as the precursor. It was possible to deposit a doped borate glass film by the described technique followed by decomposition of the metallorganic compounds by firing at temperatures higher than 425 C. The film morphology (amorphous or crystalline) depends on the substrate type. These films are used for bonding materials such as B270 glass, B270 glass + 0.1 micron Cr, and BaTiO3. The bond is strong enough to withstand dicing. 3 refs.
ISSN:0261-8028
1573-4811
DOI:10.1007/BF00274563