Non-ionic, water washable soldering paste

Details Non-ionic, water washable soldering paste Non-ionic, water washable soldering paste

1990-06-04

1991-09-03

Rosenberg, Peter D.

Metal treatment

Compositions

Fluxing

148 22, 148 24, 148 25, B23K 3534

Patent

active

050451278

ABSTRACT:
Improved soldering paste for the surface mounting of electronic components comprises a novel fluxing agent selected from quaternary ammonium hydroxides and mixtures thereof. Use of these agents as fluxes eliminates the problem of ionic residues on circuit boards and permits the boards to be washed with water to remove any non-ionic residues.

REFERENCES:
patent: 2664371 (1953-12-01), Snell
patent: 3330028 (1967-07-01), Elbreder

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