Quantum Materials Corporation

Richard R Weaver

Stephen M Dershem

Improved soldering paste for surface mounting of electronic components comprises a novel fluxing agent selected from formylated polyhydric compounds. The paste enables circuit boards to be washed with water to remove flux residues.

Water washable soldering paste

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.

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Poway, CA, United States of America

Richard R Weaver