Abstract
The selection of flux and cleaning processes plays a critical role in the manufacturing yield and product reliability of electronic assemblies. The subjects of flux and cleaning are interrelated, one cannot be discussed without the other. The function of flux is to remove oxides and other nonmetallic impurities from the soldering surfaces and prepare a clean surface for joining. After soldering, the flux residues or contaminants must be removed by cleaning. The type of contaminant is determined primarily by the type of flux used, but halides, oxides, and various other contaminants are introduced during storage and handling, as well.
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References
Musselman, R.P., and Yarbrough, T.W., “The fluid dynamics of cleaning under surface mounted P. W. As and hybrids.” Proceedings of NEPCON West, February 1986, pp. 207–220.
Rubin, W. “An inside look at flux formulations.” EPandP, May 1987, pp. 70–72.
Aspandiar, R., Prasad, P. D., and Kreider, C. “The impact of an organic acid wave solder flux on the cleanliness of surface mount assemblies.” NEPCON Proceedings, February 1987, pp. 277–289.
Wherry, R. W. “Injections of reagent stimulate yield of rosin in pine stumps.” Adhesive Age, September 1981, pp. 34–36.
Romenesko, B. M. Cleaning, Surface Mount Technology. International Society for Hybird Microelectronics Technical Monograph Series 6984–002, 1984, Reston, Va, pp. 239–243.
Manko, H. M. Soldering Handbook for Printed Circuits and Surface Mounting. New York: Van Nostrand Reinhold, 1986, pp. 232 ff.
Ellenberger, C. K. “TI tests find best cleaner, Part II,” Circuits Manufacturing, December 1986, pp. 34–44.
Sanger, D., and Johnson, K., A Study of Solvent and Aqueous Cleaning of Fluxes: Naval Weapon Center, China Lake, (1983).
Ellis, B. N. Cleaning and Contamination of Electronics Components and Assemblies. Ayr, Scotland: Electrochemical Publications, 1986.
Elliot, D. A. “Cleaning electronic assemblies.” NEPCON Pro- ceedings, February 1988, pp 510–518.
Gerard, D. R. “Eight different cycles for cleaning surface mount assemblies.” Circuits Manufacturing, March 1987, pp. 48–50.
Lermond, D. S. “SMT flux cleaning.” Circuits Manufacturing, September 1987, pp. 86–92.
ANSI/IPC-AC-62. Post Solder Aqueous Cleaning Handbook. IPC, Lincolnwood, IL. Approved Feb. 5, 1987, as an American National Standard.
IPC-CC-830. Qualification and Performance of Electrical Insulating Compounds for Printed Board Assemblies.“ IPC Standard, Lincolnwood, IL, January 1984.
ANSI/IPC-SM-840A. Qualification and Performance of Permanent Polymer Coating (Solder Mask) for Printed Boards. IPC Standard, Lincolnwood, IL, July 1983.
IPC-ML-950B. Performance Specification for Multilayer Printed Wiring Boards. IPC Standard, Lincolnwood, IL, December 1977.
IPC-SF-818. General Requirements for Electronic Soldering Fluxes IPC Standard, Lincolnwood, IL, August 1983.
Tautscher, C. J. “Measuring cleanliness of printed wiring: what really counts.” Proceedings of NEPCON West, March 1983, pp. 556–564.
Wargotz, W. B. “Physical design for irrigability in aggressive flux assembly of printed wiring.” Proceedings of NEPCON East, June 1985, pp. 23–36.
IPC-TM-2.6.3. Moisture and Insulation Resistance, Rigid, Rigid/ Flex and Flex Printed Wiring Boards. IPC Test Method, Lincolnwood, IL, February 1986.
Klein Wassink R. J., Soldering in Electronics. Ayr, Scotland: Electrochemical Publications, 1984, p. 140.
Aspandiar, R. F., Piyarali, A., and Prasad, P. “Is OA OK?” Circuits Manufacturing, April 1986, pp. 29–36.
Tuck, J. Round Table on cleaning-renewed interest in water cleaning, Circuits Manufacturing, August 1988, pp. 48–52.
Bredfeldt, K. “How well can we qualify cleanliness for surface mount assemblies?” NEPCON Proceedings, February 1987, p. 165.
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© 1989 Van Nostrand Reinhold
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Prasad, R.P. (1989). Flux and Cleaning. In: Surface Mount Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6532-7_13
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DOI: https://doi.org/10.1007/978-94-011-6532-7_13
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-011-6534-1
Online ISBN: 978-94-011-6532-7
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