No clean flux composition and methods for use thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10350713
APP PUB NO 20180043478A1
SERIAL NO

15792392

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Abstract

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A flux formulation includes an activator and a protic solvent. The activator may be glutaric acid, levulinic acid, 2-ketobutyric acid, 2-oxovaleric acid, or mixtures thereof. Suitable protic solvents include alkanediol, alkoxy propanol and alkoxy ethanol. The flux formulation may be a no-clean flux formulation that may be used in the soldering of electronic circuit board assemblies, for example, in conjunction with a support fixture having a planar back surface that minimizes vibrations during processing that might otherwise cause misalignment between a chip and a substrate prior to solder reflow.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alvarez, Victor Haverstraw, US 4 8
Beaulieu, Pierre Y Granby, CA 2 1
Lee, Kang-Wook Yorktown Heights, US 94 1897
Nah, Jae-Woong Closter, US 133 780
Turlapati, Lavanya White Plains, US 6 9

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