Cleaning and drying of electronic assemblies

Details Cleaning and drying of electronic assemblies Cleaning and drying of electronic assemblies

1989-07-07

1991-10-08

Pal, Asok

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 31, 134 36, 134902, B08B 500

Patent

active

050551388

ABSTRACT:
Components, especially of an electronic or electrical type, are cleaned by contact with a flammable liquid organic solvent (21), especially an alcohol. The surface of the solvent is covered with a non-flammable highly fluorinated compound vapor blanket (26), which vapor may also be used to transfer heat to the organic solvent. Both highly fluorinated compound and organic solvent are condensed and re-cycled.

REFERENCES:
patent: 3923541 (1975-12-01), Healy
patent: 4186032 (1980-01-01), Ham
patent: 4414067 (1983-11-01), McCord
patent: 4486239 (1984-12-01), du Fresne
patent: 4628616 (1986-12-01), Shirai et al.

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